industry characteristics and interest group formation an empirical study the role of interest groups in the political process has been the subject of much analysis in both political science and economics however few studies have examined directly the factors which influence the variation in interest group formation across industrial sectors and between countries using data on 75 industrial sectors in 10 countries we examine the way in which variations in interest group formation are explained by variations in industrial and political characteristics in cross sectional empirical relationships we test for the significance of a variety of industry and political variables our results indicate that industry characteristics such as the proportion of total demand purchased by households and the concentration ratio are related to variations in interest group formation we discuss the implications that our results have for recent theoretical work on the effect of interest groups on economic policy

a parsimonious model for forecasting gross box office revenues of motion pictures the primary objective of this paper is to develop a parsimonious model for forecasting the gross box office revenues of new motion pictures based on early box office data the paper also seeks to provide insights into the impact of distribution policies on the adoption of new products the model is intended to assist motion picture exhibitor chains retailers in managing their exhibition capacity and in negotiating exhibition license agreements with distributors studios by allowing them to project the box office potential of the movies they plan to or currently exhibit based on early box office results it is also of interest to practitioners in other software industries e g music books cd roms where the distribution intensity is highly variable over the product life cycle and is an important determinant of new product adoption patterns the model and its extensions are of interest to academic researchers interested in modeling distribution effects in new product adoption as well as forecasters looking for ways to leverage historical data on related products to forecast the sales of new products we draw upon a queuing theory framework to conceptualize stochastically the consumer s movie adoption process in two steps the time to decide to see the new movie and the time to act on the adoption decision the parameter for the time to decide process captures the intensity of information intensity flowing from various information sources while the parameter for the time to act process is related to the delay created by limited distribution intensity and other factors our conceptualization extends existing new product forecasting models which assume that consumers act instantaneously on the motivating information they receive about the new product the resulting model is parsimonious yet it accommodates a wide range of adoption patterns in addition the stochastic formulation allows us to quantify the uncertainty surrounding the expected adoption pattern in the empirical testing we focus on the most parsimonious version of the modeling framework boxmod i a model that assumes stationarity with respect to the two shape parameters that characterize the adoption process the model produces fairly accurate early forecasts using at most the first three weeks of data for calibration and the predictive performance of the model compares favorably with benchmark models we propose extensions of the basic model that account for more realistic non stationary distribution intensity patterns including a wide release pattern that relies on intensive distribution and promotion and a platform release pattern that involves a gradual buildup of distribution intensity finally we present an adaptive weighing scheme that combines initial parameter estimates obtained from a meta analysis procedure with estimates obtained from early data to produce forecasts of box office revenues for a new movie when little or no box office data are available an important finding from the empirical testing is that motion picture box office revenue patterns display remarkable empirical regularity we find that there are only three classes of adoption patterns and these can all be represented within the basic model by using a two parameter exponential or erlang 2 probability distribution or a three parameter generalized gamma distribution we also find that cumulative box office revenues can be predicted with reasonable accuracy often within 10 of the actual using as little as two or three data points however our attempts to predict revenue patterns without any sales data meet with limited success while the scale parameter can be estimated reasonably well from a historical database of parameter values we find that it is considerably more difficult to predict the shape parameters using historical data the parsimony we seek in developing the model comes at the cost of several limiting assumptions we assume that the time to decide subprocess and the time to act subprocess are independent which may not be the case if decisions on continued exhibition by retailers are endogenously related to box office revenues over the life cycle in the basic model formulation we also assume that the time to act process can be represented by an exponential distribution which may not always be the case while we provide some empirical evidence to support these assumptions further research could relax these and other assumptions to enrich the basic model although this would entail some loss in parsimony

is protection for sale evidence on the grossman helpman theory of endogenous protection grossman and helpman 1994 present a theory of endogenous protection by explicitly modeling government industry interactions for which mere black box models previously existed they obtain a ramsey pricing type solution to the provision of protection which emphasizes the role of inverse import penetration ratios and import elasticities on the lobbying side the model makes predictions about lobbying competition and lobbying spending according to deadweight costs from protection the model not only makes for richer theory in terms of rigor and elegance but its predictions are directly testable whether the grossman helman model stands up to real world data is investigated in this paper predictions from both the protection side and lobbying side are tested using cross sectional u s nontariff barrier data we also compare the second generation grossman helpman model with a more traditional specification our results call for serious consideration of this model in the political economy literature

trade liberalization antidumping and safeguards evidence from india s tariff reform abstract this paper is the first to use product level data to examine empirically whether countries use antidumping and safeguard exceptions to unwind commitments to lower tariffs in the face of domestic political economic pressure we focus on the case of india a country that underwent a major exogenous tariff reform program in the early 1990s and subsequently initiated substantial use of safeguard and antidumping import restrictions we first estimate structural determinants of india s import protection using the grossman and helpman 1994 model and provide evidence from its pre reform tariff data of 1990 that is consistent with the theory we then re estimate the model on the indian tariff data after the trade liberalization is complete and find that the model no longer fits a result consistent with theory and evidence provided in other settings that india s 1991 1992 imf arrangement can be interpreted as resulting in an exogenous shock to india s tariff policy however when we re estimate the model on data from 2000 2002 that more completely reflects india s cross product variation in import protection by including both its post reform tariffs and its additional non tariff barriers of antidumping and safeguard import protection the significance of the grossman and helpman model determinant estimates is restored we interpret these combined results as evidence that india unwound its commitment to reduce tariffs through use of antidumping and safeguard protection in the face of political economic pressure the estimates are also economically important and provide one explanation for separate results in the literature that the magnitude of import reduction associated with india s use of antidumping is similar to the initial import expansion associated with its tariff reform finally we interpret the implications of our results for the burgeoning research literature examining the effects of liberalization on india s micro level development

research on the motion picture industry state of the art and new directions off the beaten track away from theatrical release the motion picture industry has been subject of extensive academic research over the last decades however most scholars focused on the u s theatrical motion picture market the number of research activities regarding even more profitable release windows such as home video or television has been substantially lower although international distribution is essential for a motion picture project to break even there has been little significant re search on most other markets this paper aims at summarizing the current state of research on the motion picture industry particularly from marketing and management perspective revealing research gaps and proposing recommendations for future research endeavors therefore a three pillar scheme is developed to systemize previous findings research on intraorganizational decision making contractual relationships between national stakeholders and international market competition are differentiated since these insights are mainly derived from u s theatrical exhibition they can hardly be applied to other markets and exhibition windows thus potential research areas are identified to expand knowledge of posttheatrical and international markets

a political economy theory of trade agreements we develop a model where trade agreements in addition to correcting terms of trade externalities help governments to commit vis a vis domestic industrial lobbies the model allows us to explore how the characteristics of the political environment aect the structure of the trade agreement and the extent of trade liberalization the model also highlights the role of intersectoral capital mobility in determining trade liberalization in a dynamic extension of the model we explore the extent to which trade liberalization occurs gradually and how its speed depends on the fundamentals of the problem

measuring technical efficiency abstract the theoretical consideration of technical efficiency has existed since koopmans koopmans t c 1951 an analysis of production as an efficient combination of activities in koopmans t c ed activity analysis of production and allocation cowles commission for research in economics monograph no 13 wiley new york defined it as production possibilities for which it is not possible to increase any output without simultaneously increasing any input ceteris paribus the non parametric approach to efficiency calculation known as data envelopment analysis is not based on this definition but rather on the radial index of farrell farrell m j 1957 the measurement of productive efficiency journal of the royal statistic society ser a 120 253 281 even after farrell efficiency is achieved there may exist additional slack in individual inputs and or outputs implying that farrell s index does not necessarily measure koopmans inefficiency various measures have been proposed to solve this problem this paper discusses shortcomings of these alternative measures and introduces a new relative measure of technical efficiency using simulated data it is shown that the new measure outperforms existing measures in the majority of cases

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

technical efficiency shadow price and substitutability of chinese industrial so2 emissions a parametric approach abstract in china s transition process towards sustainable development fighting against the rising so2 emission has become a great and urgent challenge based on a parametric quadratic directional distance function this paper investigates the inefficiency level shadow price and substitution elasticity of chinese industrial so2 emission from 1998 to 2011 the results show a u shape for the technical inefficiency indicating an efficiency improvement before 2005 but it getting worse since then which is that the east area displays a declining trend while the west goes up and the middle follows the national pattern at the east middle west region level as of the shadow price and morishima elasticity both the national and regional levels hold an increasing trajectory the shadow price is continuously increased a lot during the whole period implying to control additional so2 emission become more costly the positive morishima substitution elasticity suggests there may exist the win win opportunities for so2 regulation moreover the large regional disparity highlights the needs to adopt a differentiated regional policy

the value of trade agreements in the presence of political pressures an argument often heard in favor of trade agreements is that by committing to free trade a government can credibly distance itself from domestic lobbies but several existing models of endogenous protection suggest that governments have no interest in foreclosing interest group pressures since governments derive rents from the political process we develop a small country model in which factors are sector specific in the short run but mobile in the long run we show that in this setting a government may be worse off in the political equilibrium than under commitment to free trade and hence it may value a trade agreement

foreign lobbies and us trade policy abstract in popular discussion much has been made of the susceptibility of government policies to lobbying by foreigners the general presumption being that this is harmful to the home economy however in a trade policy context this may not be the case if the policy outcome absent any foreign lobbying is characterized by welfare reducing trade barriers foreign lobbying may reduce such barriers and possibly raise welfare using a new data set on foreign political activity in the united states this paper investigates this question empirically tariffs and nontariff barriers are both found to be negatively related with foreign lobbying activity

is the wto passe the wto has delivered policy outcomes that are very different from those likely to emerge out of the recent wave of preferential trade agreements ptas should economists see this as an efficient institutional hand off where the wto has carried trade liberalization as far as it can manage and is now passing the baton to ptas to finish the job this paper surveys a growing economics literature on international trade agreements and argues on this basis that the wto is not passe rather and subject to some caveats this survey of research to date suggests that the wto warrants strong support while a more cautious view of ptas seems appropriate

foreign actors and intellectual property protection regulations in developing countries international agreements and institutions affect innovation in developing countries we analyze the impact of advanced country multinational enterprises amnes and supranational organizations on the regulatory adoption of global intellectual property protection standards in particular we investigate 60 developing countries that signed the trade relate aspects of intellectual property rights trips agreement of the world trade organization in 1994 our empirical findings show that a greater involvement of amnes in the domestic innovation systems of developing countries results in more stringent trips adoption and convergence to advanced country ip protection standards this relationship is positively moderated by country dependency on supranational organizations such as the international monetary fund this analysis contributes to the literature on institutional change and institutional voids it provides insights into the influence of external actors on the underlying change processes

are football managers as efficient as coaches performance analysis with ex ante and ex post inputs in the premier league there is a controversy on sport performance literature about what type of inputs might explain more deeply the performance of sports clubs inputs specification controversy by one side several p

evaluating us state police performance using data envelopment analysis abstract in this paper we evaluate the efficiency of state police services in the continental united states using a multiple stage data envelopment analysis model using multiple inputs and multiple outputs to characterize police service provision technical and scale efficiency are calculated for the 49 continental states given the complex nature of service provision we allow for environmental factors of production and control for these non discretionary inputs our results indicate that most states are technically efficient but nearly half are operating at less than optimal scale size

accounting for stylised facts about recent anti dumping retaliation and innovation recent work has found certain stylised facts about anti dumping ad actions i ad actions are mostly between industrial and developing countries ii developing countries use ad to retaliate against industrial countries and iii ad is concentrated in r d intensive industries this study develops an analytical framework that can account for these empirical findings the model suggests that market expansions and or improvement in r d capability in the south are essential in avoiding ad wars with the north interestingly stricter enforcement of intellectual property rights in the south has little effect on stopping ad wars between the north and the south

protection for sale in a developing country democracy vs dictatorship for a genuine small open economy that has experienced both dictatorship and democracy we find support for the predictions of the grossman helpman 1994 protection for sale model in contrast to previous studies we use various protection measures including tariffs the direct measure of the theoretical model and perform both single year and panel regressions using turkish industry level data the government s weight on welfare is estimated to be much larger than that on contributions more importantly we find that this weight is generally higher for the democratic regime than for dictatorship

stochastic data envelopment analysis a review abstract this paper provides a review of stochastic data envelopment analysis dea we discuss extensions of deterministic dea in three directions i deviations from the deterministic frontier are modeled as stochastic variables ii random noise in terms of measurement errors sample noise and specification errors is made an integral part of the model and iii the frontier is stochastic as is the underlying production possibility set pps stochastic dea utilizes non parametric convex or conical hull reference technologies based upon axioms from production theory accompanied by a statistical foundation in terms of axioms from statistics or distributional assumptions the approaches allow for an estimation of stochastic inefficiency compared to a deterministic or a stochastic pps and for statistical inference while maintaining an axiomatic foundation focus is on bridges and differences between approaches within the field of stochastic dea including semi parametric stochastic frontier analysis sfa and chance constrained dea ccdea we argue that statistical inference based upon homogenous bootstrapping in contrast to a management science approach imposes a restrictive structure on inefficiency which may not facilitate the communication of results of the analysis to decision makers semi parametric sfa and ccdea differ w r t the modeling of noise and stochastic inefficiency the two approaches are in spite of the inherent differences shown to be complements in the sense that the stochastic ppss obtained by the two approaches share basic similarities in the case of one output and multiple inputs recent contributions related to i disentangling of random noise and random inefficiency and ii obtaining smooth shape constrained estimators of the frontier are discussed

operational research in education operational research or techniques have been applied from the early stages of the discipline to a wide variety of issues in education at the government level these include questions of what resources should be allocated to education as a whole and how these should be divided amongst the individual sectors of education and the institutions within the sectors another pertinent issue concerns the efficient operation of institutions how to measure it and whether resource allocation can be used to incentivise efficiency savings local governments as well as being concerned with issues of resource allocation may also need to make decisions regarding for example the creation and location of new institutions or closure of existing ones as well as the day to day logistics of getting pupils to schools issues of concern for managers within schools and colleges include allocating the budgets scheduling lessons and the assignment of students to courses this survey provides an overview of the diverse problems faced by government managers and consumers of education and the or techniques which have typically been applied in an effort to improve operations and provide solutions

introduction strategy for new products with positive and negative word of mouth existing innovation diffusion models assume that individual experience with the product is always communicated positively through word of mouth for certain innovations however this assumption is tenuous since communicators of the product experience may transfer favorable unfavorable or indifferent messages through word of mouth this paper examines a diffusion model for products in which negative information plays a dominant role discusses its implications for optimal advertising timing policy and presents an application to forecast attendance for the movie gandhi in the dallas area

determinants of interest group formation it is widely recognized that interest groups affect both microeconomic and macroeconomic outcomes however few researchers have attempted to discern empirically the factors that contribute to interest group activity this paper provides a test of several theories of group formation in a panel setting a nation s stability socioeconomic development political system size and diversity all appear to contribute to interest group formation as predicted by theory

does antidumping use contribute to trade liberalization in developing countries some supporters of antidumping have argued that this procedure serves as a kind of safety valve for protectionist pressure in this paper we investigate whether there is empirical evidence that the use of antidumping actions has contributed to ongoing tariff reductions over the period 1988 to 2004 in a sample of 23 developing countries some of which have become aggressive users of antidumping in recent years the evidence is not supportive of the safety valve argument for these countries instead evidence suggests that past use of antidumping may have led to less rather than more trade liberalization

preferential and multilateral liberalization evidence from latin america s use of tariffs antidumping and safeguards abstract i test the predictions of bagwell and staiger s 1999 theory of the effects of preferential liberalization on import protection imposed against non member countries in contrast to the existing literature which has for the most part focused on investigating whether external tariffs rise or fall due to preferential trade liberalization by testing the predictions of a specific model in a way that closely follows the theory i am able to examine the channels through which those effects take place importantly and unlike most existing studies i analyze not only tariffs but also the temporary trade barrier ttb policies of antidumping and safeguards i focus on latin america and find strong support for the theoretical predictions of bagwell and staiger 1999 first there is evidence of tariff complementarity i a larger reduction in the preferential import protection leads to a larger reduction in protection against non members ii the more consumption increases the more external protection decreases with the fall in preferential protection and iii the more imports from the rest of the world fall the more external protection decreases with a preferential protection cut furthermore i also find evidence consistent with the punishment effect and the tariff discrimination effect which arise when enforcement difficulties are incorporated into the theory finally the overall results point toward a building block effect of preferential liberalization

sh a r p shelf allocation for retailers profit shelf space is the retailer s scarcest resource space management tools are thus badly needed for that purpose commercial computer packages and optimal allocation models have been developed building on the work of corstjens and doyle we elaborate a general theoretical shelf space allocation model which focuses on the demand interdependencies prevailing across and within product groups rules of thumb are compared to the derived optimal allocation the sh a r p model is introduced as a simplified yet realistic variant and validated against data collected in a dutch supermarket chain subsequently the feasibility of its implementation has been experimented in various belgian chains case studies demonstrate the profit potential of sh a r p

financial sustainability and poverty outreach within a network of village banks in cameroon a multi dea approach abstract microfinance institutions face a double bottom line they perform financial tasks by giving microcredits to their customers and support projects aiming at reducing poverty in doing so they have to be financially self sufficient and to target poor people excluded from the traditional financial systems however a trade off may exist between financial sustainability and poverty outreach for these institutions by using a multi dea approach this paper shows that even if a trade off exists for 15 of the mc 2 mutuelles communautaires de croissance in cameroon there is no trade off for 46 of them in order to increase without trade off financial and social performance of inefficient mc 2 a benchmarking approach combing dea and performance indicators has been developed dea is used for identifying best practices and setting benchmarking goals performance indicators are used for characterizing areas needing improvements and following the evolution of mc 2 toward their goals i e for implementing benchmarking complementarity of both approaches provides a tool box for improving financial and social efficiency and reducing the trade off between financial sustainability and poverty outreach of microfinance institutions

a theory of managed trade this paper proposes a theory that predicts low levels of protection during periods of normal trade volume coupled with episodes of special protection when trade volumes surge this dynamic pattern of protection emerges from a model in which countries choose levels of protection in a repeated game facing volatile trade swings high trade volume leads to a greater incentive to defect unilaterally from cooperative tariff levels therefore as the volume of trade expands the level of protection must rise in a cooperative equilibrium to mitigate the rising trade volume and hold the incentive to defect in check copyright 1990 by american economic association

advanced x efficiencies for ccr and bcc models towards peer based dea controlling abstract classical ccr and bcc dea models follow a general concept they allow each dmu to evaluate its in efficiency in the most favorable way and then propose input reduction and or output raise so as to follow its best practice units a first step beyond this self appraisal is the consideration of x efficiencies thus evaluating dmus with optimal weights of a peer doing this for all possible peers yields a cross efficiency matrix either for ccr or for bcc models this matrix might help to find a fair peer for the remaining dmus in a second step recent contributions analyze for ccr models how such x evaluated dmus might improve their efficiency with respect to a peer s weight system in these models even free variation of inputs outputs is possible rather than reduction and or raise such models will be portrayed here and generalized for variable returns to scale the remaining discomfort which a dmu might feel with the choice for peer among business rivals leads to the concept of a virtual peer vp this paper proposes such a peer as a consensual option for all dmus now for either return to scale ccr and bcc for an input or output oriented focus and by free variation of inputs and outputs they can meet the requirements of vp the dmus pay a heavy price however the peer controls their respective weights and even their activities he is a dictator

anti dumping use and its effect on trade liberalisation evidence for the european union in this paper we examine the hypothesis that anti dumping actions may contribute to trade liberalisation by serving as a safety valve for protection seeking pressures using microlevel trade and tariff data at the hs 8 digit level for the european union we investigate whether the use of anti dumping measures has acted as a catalyst in subsequent multilateral tariff negotiations our findings suggest that anti dumping policies may have reduced the resistance of domestic protectionist forces towards major tariff reforms as they show significantly larger tariff cuts for products previously involved in an anti dumping investigation

a dynamic stochastic frontier model to evaluate regional financial efficiency evidence from chinese county level panel data abstract studies have widely used stochastic frontier models to assess financial efficiency however traditional static approaches do not take dynamic characteristics of financial systems into account this article develops a dynamic stochastic frontier model to evaluate regional financial efficiency and provides an empirical test of the model by using panel data of 62 chinese counties during the 2001 2010 period the model measures the dynamic impact of the input output variables and environmental variables on financial efficiency and allows for the separation of technical change from the change in technical efficiency the results show that the dynamic model provides a better fit to the data than the static model in addition a gradient difference emerges in the regional financial efficiency among the six major regions of china the results offer practical implications for the development of regional financial services in china as well as other developing countries and emerging economies

the chilling trade effects of antidumping proliferation advocates of antidumping ad laws downplay their negative effects by arguing that the trade flows that are subject to ad are small and their distortions negligible but while the adverse effect of ad on product level trade has long been established the question remains whether there are trade effects at the aggregate level the recent proliferation wave of ad laws and their use provides us with a unique policy change to estimate the true trade effects of adopting and enforcing ad laws for this purpose we estimate the effect of ad on bilateral trade flows between the new adopters of ad laws and their trade partners using a gravity model of annual observations 1980 2000 our estimates show that ad has trade chilling effects on aggregate import volumes but the impacts are heterogeneous across sectors we find that new tough users experience a chilling of their aggregate imports of 14 billion us a year or 5 9 as a result of ad measures for some countries like mexico and india the dampening effects of ad laws on trade flows are found to substantially offset the increase in trade volumes derived from trade liberalization

the impact of environmental expenditures on performance in the u s chemical industry abstract this study analyzes chemical industry companies with environmental expenditures to determine which ones have better financial performance in addition this study uses data envelopment analysis to evaluate the efficiency of firms with and without environmental expenditures this study also utilizes the malmquist productivity index mpi to analyze firms productivity change and a bootstrap method to test whether the indexes are statistically significant finally this study divides chemical industry companies into three main categories based on their products the results of this study provide significant evidence of a relationship between environmental expenditures and financial performance the findings suggest that firms with environmental expenditures have better efficiency and productivity hence the study encourages companies in the industry to put more effort into protecting the environment that can be through practicing cleaner production to create higher benefits

strategic corporate social responsibility and economic performance this article proposes a novel corporate social responsibility csr index based on a data envelopment analysis dea model acknowledging the argument that companies might favour those csr dimensions that provide strategic competitive advantages we argue that the index can capture companies strategic approach to csr furthermore our findings reveal a neutral relationship between this strategic csr index and economic performance as measured by return on assets roa and tobin s q when controlling for firm unobserved heterogeneity and past economic performance by contrast an equally weighted index of the same csr indicators is found to be negatively related with roa which reinforces our claim that this specific dea based index is a measure of strategic csr

productivity and efficiency change and shareholder value evidence from the spanish banking sector productivity change and shareholder value have been analysed in the banking sector in the last few years although it should be noted that these two important aspects have been studied separately in this regard the main contribution of our study is to link these two lines of research by verifying whether those banks characterized by higher levels of efficiency and productivity change have a higher shareholder value to measure changes in efficiency and productivity we use the malmquist nonparametric technique which is calculated from data envelopment analysis dea linear programming approach the malmquist total factor productivity index enables separation of the catching up effect i e changes over time in technical efficiency from technological change i e the shift of best practice frontier over time due to technological progress our results for a sample of listed spanish banks in the period 2000 to 2004 confirm that those banks with higher efficiency and productivity changes have a higher

estimating most productive scale size using data envelopment analysis abstract the relation between the most productive scale size mpss for paparticular input and output mixes and returns to scale for multiple inputs multiple outputs situations is explicitly developed this relation is then employed to extend the applications of data envelopment analysis dea introduced by charnes cooper and rhodes ccr to the estimation of most productive scale sizes for convex production possibility sets it is then shown that in addition to productive inefficiencies at the actual scale size the ccr efficiency measure also reflects any inefficiencies due to divergence from the most productive scale size two illustrations of the practical applications of these results to the estimation of most productive scale sizes and returns to scale for hospitals and stem electric generation plants are also provided emphasize the advantage of this method in examining specific segments of the efficient production surface

an examination of the factors affecting the formation of interest groups in oecd countries perhaps the best way to summarize the empirical results is to classify the hypotheses into three groups those which can be readily accepted because they are supported in all tests those which can be readily rejected because no test results support them and those upon which one should remain agnostic because the test results are not consistent in the first group are population pop decentralization of government dcnt and length of time of modernization date one can state quite confidently that these three variables are determinants of interest group activity in the second group are the variables measuring characteristics of the political system poly dem1 dem2 pfrc one can with ease reject the hypotheses to which these variables are relevant there is a large group of variables which stand in the middle group however for these variables there are gradations of success in the tests the variables on socioeconomic development inc agri news and number of industries and political subdivisions nind regp are only significant in the one variable tests especially important is their failure to obtain the correct signs in the tests reported in table 3 the variables on ethnic fractionalization efrc and olson s hypothesis on destruction of groups ndfo have the correct signs in table 3 and are significant in table 1 thus it is more difficult to reject efrc and ndfo as determinants of interest group activity than inc nind and regp finally it should be mentioned that once appropriate simultaneous equations techniques are applied government size is no longer supported as a significant variable this paper will conclude with comments of a more conjectural nature on the implications of the results in the case of three specific variables first the results on hypothesis 3 suggest that population affects the number of interest groups independently of indirect effects through other variables this direct effect occurs because groups become proportionately smaller and more homogeneous as population increases hence one can expect the political economy of larger countries to be significantly different from that of smaller countries the results suggest that larger countries will have a denser array of interest groups and that these groups because of their homogeneity will find it easier to decide on and pursue policies in the narrow interests of their members secondly the results support olson s claim that there will be a gradual accumulation of interest groups in developed democracies given that olson attributes to interest groups a large role in determining the economic fortunes of a country the fact that his accumulation hypothesis is supported is a result of some significance finally if one accepts the two stage least squares results it has been shown that changes in government size do not induce changes in interest group activity an important conclusion can be reached when this result is taken in combination with the results of other studies which show that interest groups induce changes in the size of government mccormick and tollison 1981 and mueller and murrell 1983 these results do not support the capture theory of government that governmental institutions are created perhaps in the public interest and then dominated by interest groups rather the results support the theory that the institutions themselves are the creatures of interest group activity

eu anti dumping and tariff cuts trade policy substitution the world trading system in its current form aims at reducing multilateral trade barriers across the board indeed the last successfully concluded multilateral trade negotiations led to substantial tariff concessions on the part of most developed economies what however happened to other forms of import protection have substantial tariff concessions subsequently been replaced by the use of alternative forms of import protection in this paper we empirically investigate the relationship between negotiated external tariff cuts and the subsequent use of anti dumping actions by the eu evidence is found for larger uruguay round tariff cuts increasing the probability of subsequent anti dumping investigations

malmquist productivity index estimation with zero value variables the case of greek prefectural training councils abstract the paper suggests a technique for the parametric estimation of the malmquist productivity growth index when the dataset to be analyzed contains a considerable number of observations with zero values a dummy variable technique suggested by battese j agric econom 48 1997 250 is extended to a translog specification of the input distance function moreover technical changes tcs are decomposed into neutral and biased components and the sources of total productivity growth are computed via formulae explicitly accounting for the discrete nature of the data our approach has been applied to the greek prefectural training councils a state extension system for the general public findings indicate a considerably negative productivity growth primarily attributable to regressive tc

cost efficiency of french rugby clubs this article analyses the cost efficiency of french first league rugby clubs using a stochastic frontier model the frontier estimation confirmed that the model fits the data well with all coefficients correctly signed and in line with the theoretical requirements the results show that one of the clubs is operating efficiently with the majority of clubs clustered around 20 inefficiency policy implications are derived

wto tariff commitments and temporary protection complements or substitutes abstract there is a long held notion in the trade policy literature that traditional tariff instruments and temporary protection tp measures are substitutes despite this prediction there is only mixed empirical evidence for a link between tariff reductions and the usage pattern of antidumping safeguard and countervailing duties based on recent theoretical advances i argue in this paper that the relevant trade policy margin for implementing tp measures is instead tariff overhangs the difference between wto bound and applied tariffs lower tariff overhangs constrain countries to raise their mfn applied rates without legal repercussions independent of past tariff changes using detailed sectoral data for a sample of 30 wto member countries during the period 1996 2014 i find strong evidence for an inverse link between tariff overhangs and tp activity this result implies that tariff overhangs and tp measures are substitutes vindicating the importance of existing tariff commitments as a key determinant of alternative protection instruments

neoclassical versus frontier production models testing for the skewness of regression residuals the empirical literature on production and cost functions is divided into two strands 1 the neoclassical approach that concentrates on model parameters 2 the frontier approach that decomposes the disturbance term to a symmetric noise term and a positively skewed inefficiency term we propose a theoretical justification for the skewness of the inefficiency term arguing that this skewness is the key testable hypothesis of the frontier approach we propose to test the regression residuals for skewness to distinguish the two competing approaches our test builds directly upon the asymmetry of regression residuals and does not require any prior distributional assumptions

regulatory reforms and productivity an empirical analysis of the japanese electricity industry the japanese electricity industry has experienced regulatory reforms since the mid 1990s this article measures productivity in japan s steam power generation sector and examines the effect of reforms on the productivity of this industry over the period 1978 2003 we estimate the luenberger productivity indicator which is a generalization of the commonly used malmquist productivity index using a data envelopment analysis approach factors associated with productivity change are investigated through dynamic generalized method of moments gmm estimation of panel data our empirical analysis shows that the regulatory reforms have contributed to productivity growth in the steam power generation sector in japan

hypercongestion in production correspondences an empirical exploration this empirical contribution reviews the rather limited existing literature measuring congestion in production it first compares current ways to measure congestion using nonparametric specifications of technologies in particular it focuses on the magnitude and incidence of the congestion detected in empirical studies using traditional radial efficiency measures thereafter it shows the limitations of this radial measurement and how alternative measurement schemes may reveal higher amounts of congestion then the new more general methodology of measuring s congestion is presented in particular we first present a numerical example to illustrate the way the s disposable technologies allow to capture more extreme forms of congestion by setting empirically determined upper bounds to the wasting of inputs then an empirical illustration is presented based on an existing sample of data a final section concludes

determinants of the increase in the number of interest groups in western democracies theoretical considerations and evidence from 21 oecd countries mancur olson s theory of institutionalsclerosis is based on the notion that thenumber of interest groups within a countryincreases with the duration of itspolitical stability the following paperargues that the increase in the number ofinterest groups over time could also be aconcomitant of economic development theoretically both explanations provetenable an empirical cross sectionalregression analysis using data from 21oecd countries finds no evidence for asignificant impact of the duration ofpolitical stability on the number ofinterest groups a significantly positiveeffect is however reported for the degreeof economic development

taking stock of antidumping safeguards and countervailing duties 1990 2009 antidumping safeguards countervailing duties 1990 2009 this article examines the evolving cross country use of antidumping safeguard and countervailing duty policies temporary trade barriers ttbs over the period 1990 2009 i construct two new measures of imported products subject to the combined use of these ttbs before applying these measures to new data drawn from the world bank s temporary trade barriers database i then establish a number of facts regarding trends in historical use to benchmark against policy activity during the global economic crisis of 2008 09 the 2008 09 economic shock mostly accentuates patterns and trends already visible in the precrisis data e g while the major users of such policies overall combined to increase the product lines subject to ttbs by 25 per cent during the crisis this was driven almost entirely by developing economies which increased their product coverage by 40 per cent perhaps surprisingly recession affected high income economies increased their stock of product coverage by only 5 per cent during the crisis a muted policy response consistent with earlier trends in which major developed economies like the united states and eu reduced the stock of imported products they subject to ttbs to 2007 levels that were only 50 per cent as high as their within period peak furthermore a previously unidentified feature of the data is that a much larger share of china s exported products to other developing economies is subject to foreign imposed antidumping than its exports to developed economies the evidence confirms this feature is shared by a number of other major developing economy exporters deepening concern that these discriminatory trade barriers are increasingly a south south phenomenon finally i also clarify emerging trends in countervailing duty anti subsidy use across countries

cost efficiency of electric grid utilities in china a comparison of estimates from sfa mle sfa bayes and stoned cnls with the purpose of estimating the range of cost efficiency levels of the power grid sector in china we assembled a data set including 23 provincial power grid companies spanning from 2005 to 2009 and conducted an empirical study based on the sfa mle sfa bayes and stoned cnls methodologies empirical results show that the average values of efficiency from different models vary from 0 85 to 0 92 depending especially on the assumptions underlying inefficiency content further results demonstrate that there is exogenous technical progress during the sample period and per capita gdp of the province is negatively related to the costs of the electric grid company located in the corresponding province we hope this empirical study will contribute to the debate on an efficiency based regulation scheme which was introduced to the chinese electric grid sector on a pilot base in 2014

contestable markets an uprising in the theory of industry structure presents a transcript of the presidential address delivered at the 94th meeting of the american economic association on december 29 1981 discussion of developments in the theory of industry structure welfare attributes of contestable markets behavior characteristics of oligopoly equilibrium intertemporal vulnerability to inefficient entry ebsco

a dynamic multi stage data envelopment analysis model with application to energy consumption in the cotton industry abstract data envelopment analysis dea is a non parametric method for evaluating the relative efficiency of homogenous decision making units dmus with multiple inputs and outputs in this paper we present a dynamic multi stage dea dms dea approach to evaluate the efficiency of cotton production energy consumption in the proposed model the farms which consume resources i e fertilizers seeds and pesticides to produce cotton are assumed to be the dmus inputs not consumed during a planning period are carried over to the next period in the planning horizon initially a dms dea model is used to determine the overall efficiency of the dmus with dynamic inputs next the efficiency score of each dmu is calculated for each time period in the planning horizon we demonstrate the applicability of the proposed method and exhibit the efficacy of the procedures and algorithms with a real life case study of energy consumption in the cotton industry

the adjusted spherical frontier model with weight restrictions abstract this paper presents the asfm lp model a parametric data envelopment analysis dea model for allocating resources commonly called inputs this model considers that a fair allocation of inputs is one that maximizes the dea ccr efficiencies of the decision making units dmus the main assumption of the asfm lp is the predefined spherical shape of the efficiency frontier we have demonstrated that our method extends the existing parametric model asfm to allow the introduction of weight restrictions which has great importance in practical applications of dea numeric examples are presented to show the application of the method

tariff liberalisation and increased administrative protection is there a quid pro quo theoretical models and intuition suggest that the amount of non traditional protection such as anti dumping duties will increase as more traditional forms such as tariffs are lowered under multilateral trade agreements this paper is the first empirical study of the role of tariff liberalisation in the spread of anti dumping through both correlations and regression approaches we analyse the relationship between tariff concessions made during the uruguay round trade negotiations and the filing of anti dumping petitions with particular interest in whether multilateral trade reductions have spurred the recent growth in new users of anti dumping policies we find that at least for developing economies tariff reductions agreed to under the uruguay round not only increased the likelihood of a country using anti dumping protection but also the total number of anti dumping petitions filed by countries

silverscreener a modeling approach to movie screens management managing the allocation of shelf space for new products is a problem of significant importance for retailers the problem is particularly complex for exhibitors the retailers in the motion picture supply chain because they face dynamic challenges given the short life cycles of movies the changing level of demand over time the scarcity of shelf space and the complex revenue sharing contract between the exhibitor and the distributor in the face of this complexity the aim of current research is to provide a structure for analyzing management problems of exhibitors in the movie industry using a mathematical programming approach and a fast but readily accessible algorithm we propose a decision support model silverscreener whose aim is to help exhibitors make effective and timely decisions regarding theater screens management the major objective is to help select and schedule movies for a multiple screens theater over a fixed planning horizon in such a way that the exhibitor s cumulative profit is maximized by treating the multiple screens as parallel machines and the movies as jobs we provide an analogy of the current problem to the parallel machine scheduling problem we formulate the resulting problem as an integer program we depart from the typical parallel machine scheduling problems by introducing the time indexed formulation that is particularly useful for solving the current problem an important distinction between the current problem and typical machine scheduling problems is that the present approach allows for the choice of which movies to play typically in machine scheduling all jobs have to be scheduled we provide various analyses of normative versus actual decision making based on publicly available data the developed model is readily implementable and appears to lead to improved profitability in different comparative cases through sensitivity analysis we demonstrate that the above results are robust to variations in various parameters of the problem the main findings and insights from the normative policy suggest the following 1 based on silverscreener s recommendations the exhibitor can achieve substantially higher cumulative profit 2 the improvement over actual decisions in terms of profitability appears to result from a combination of better selection and scheduling of the movies 3 the general structure of the exhibitor s normative decision is choose fewer right movies and run them longer we propose a two tier integrated application of the model to show how the model can be applied to realistic decisionmaking the first tier involves development of a movie selection plan to help the manager plan an entire season and bid for movies before the start of that season an ex ante revenue prediction scheme is developed based intuitively on a matching of the forthcoming movies with similar movies played in this theater previously if the forthcoming season s scheduling plan can be visualized as a two dimensional week by screen matrix then that matrix contains only empty cells before the first tier after a bid plan is developed the exhibitor can fill some of those empty cells the remaining empty cells represent slots which can be decided during the season by either extending movies the exhibitor booked before the season or by scheduling other movies which may become available later in the season this motivates the second tier adaptive scheduling approach of the integrated approach the second tier helps the exhibitor in weekly decision making during the season this application involves rolling and updating data from one time window to another the approaches followed in the two tiers of the integrated application are quite general in that they can incorporate a sophisticated demand prediction model managerial judgments or a combination of both we also propose an alternative behavioral decision rule heuristic which exemplifies relationship dilemmas in the movie industry this heuristic shows that the exhibitors need to be selective in their choice of movies and may suffer a substantial loss in profitability if they place too much emphasis on accommodating distributors

microfoundations for stochastic frontiers the purpose of the paper is to propose microfoundations for stochastic frontier models previous work shows that a simple bayesian learning model supports gamma distributions for technical inefficiency in stochastic frontier models the conclusion depends on how the problem is formulated and what assumptions are made about the sampling process and the prior after the new formulation of the problem it turns out that the distribution of the one sided error component does not belong to a known family moreover we find that without specifying a utility function or even the cost inefficiency function the relative effectiveness of managerial input can be determined using only cost data and estimates of the returns to scale the point of this construction is that features of the inefficiency function u z can be recovered from the data based on the solid microfoundation of expected utility of profit maximization but the model does not make a prediction about the distribution

differences in the determinants and targeting of antidumping china and india compared despite both being developing countries china and india have markedly contrasting patterns in their use and targeting of antidumping ad measures we explore the factors driving ad use by these two countries considering in turn macroeconomic strategic and other determinants we find more regular or systematic features of ad use by china while india displays a less systematic pattern of ad use economic growth ad club effect and fta participation are shown to constrain ad use by china compared to india ad use by china is also more sensitive across industries furthermore china targets developed countries more than developing countries while india is less discriminating with respect to the country type it targets

modeling movie life cycles and market share we examine box office sales in the context of a market share model this is accomplished by developing a combination of a sliding window logit model and a gamma diffusion pattern in a hierarchical bayes framework we show that accounting for the full choice set available every week not only increases the fit of weekly movie sales but also leads to parameter estimates that depict a richer picture of the movie industry we show that movie studios appear to have a good understanding of the products they produce knowing when to support them and when not to we also show that the effect of the number of opening week screens is overestimated in traditional models our research indicates that actors have a direct and directors an indirect effect on consumers movie choice releasing a movie contemporaneously with other movies of the same genre adversely affects box office performance all around releasing a movie against movies of the same motion picture association of america mpaa rating hurts its sales in the beginning but there is a displacement effect which leads to a less severe sales loss in the long run

something to talk about social spillovers in movie consumption we exploit the randomness of weather and the relationship between weather and moviegoing to quantify social spillovers in movie consumption instrumenting for early viewership with plausibly exogenous weather shocks captured in lasso chosen instruments we find that shocks to opening weekend viewership are doubled over the following five weekends our estimated momentum arises almost exclusively at the local level and we find no evidence that it varies with either ex post movie quality or the precision of ex ante information about movie quality suggesting that the observed momentum is driven in part by a preference for shared experience and not only by social learning

using dea to evaluate 29 canadian textile companies considering returns to scale in this research we use data envelopment analysis dea to evaluate the performance of 29 canadian textile companies in 1994 using the charnes cooper and rodes ccr model in dea we first obtain the results of efficiency scores and returns to scale of 29 canadian textile companies we then focus on the returns to scale to examine the possibility of utilizing the inefficient inputs by either further expansion or vertical integration we develop a mathematical model to consider the trade off between reducing and not reducing the input surplus we use the cone ratio model to find the optimal level of vertical utilization the computational results are based on real data from the canadian textile companies

investigating and comparing the dynamic patterns of the business value of information technology over time abstract the long debated issue of the business value of information technology it to the firm country has received a great deal of attention in the literature but the studies have rarely examined the dynamic patterns of the it value as measured by the firm s productive efficiency over time the objective of this paper is to apply the three factor constant elasticity of substitution ces time varying stochastic production frontier models and use the same data set as used in several previous studies to investigate the dynamic patterns of it value over time in connection with the issues of inputs substitution and complement and the productivity paradox this paper adopts two analytical skills collective and individual to analyze the empirical results collectively we find that the dynamic patterns of it value are closely related to the substitution and complement of three inputs and the it productivity paradox individually we identify five common dynamic patterns of the it value measured by productive efficiency and interpret their implications for the productivity paradox as summarized in a two by two matrix of practical applications and strategies this matrix accounts for four different scenarios of the relationship between the average productive efficiency and the it productivity paradox illustrates some practical applications by the analytical results and provides some business insights and managerial strategies for it decision makers and po is managers this represents a new contribution to the understanding of the dynamic influence of it investments upon the value of it over time

empirical analysis of metering price discrimination evidence from concession sales at movie theaters prices for goods such as blades for razors ink for printers and concessions at movies are often set well above cost theory has shown that this could yield a profitable price discrimination strategy often termed metering the idea is that a customer s intensity of demand for aftermarket goods e g the concessions provides a meter of how much the customer is willing to pay for the primary good e g admission if this correlation in tastes for the two goods is positive a high price on the aftermarket good allows firms to extract a greater total price admissions plus concessions from higher type customers this paper develops a simple aggregate model of discrete continuous demand to motivate how this correlation can be tested using simple regression techniques and readily available firm data model simulations illustrate that the regressions can be used to predict whether aftermarket prices should be above below or equal to their marginal cost we then apply the approach to box office and concession data from a chain of spanish theaters and find that high priced concessions do extract more surplus from customers with a greater willingness to pay for the admission ticket

do external interventions work the case of trade reform conditions in imf supported programs abstract trade reform conditions are common in imf supported programs of the 99 countries that had imf programs during 1993 2003 77 had trade reform conditions in their programs since the wto has not been found especially effective in promoting trade openness for most developing countries it is of great interest to see if the imf has been more effective as it combines carrots and sticks not available to the wto yet the effectiveness of these trade conditions has not been systematically studied using a unique dataset this paper provides such an assessment it finds that trade conditions are indeed associated with an increase in trade openness on average but the effect comes mostly from countries that can be characterized by a high degree of willingness to reform

taking stock of antidumping safeguards and countervailing duties 1990 2009 this article examines the evolving cross country use of antidumping safeguard and countervailing duty policies temporary trade barriers ttbs over the period 1990 2009 i construct two new measures of imported products subject to the combined use of these ttbs before applying these measures to new data drawn from the world bank s temporary trade barriers database i then establish a number of facts regarding trends in historical use to benchmark against policy activity during the global economic crisis of 2008 09 the 2008 09 economic shock mostly accentuates patterns and trends already visible in the precrisis data e g while the major users of such policies overall combined to increase the product lines subject to ttbs by 25 per cent during the crisis this was driven almost entirely by developing economies which increased their product coverage by 40 per cent perhaps surprisingly recession affected high income economies increased their stock of product coverage by only 5 per cent during the crisis a muted policy response consistent with earlier trends in which major developed economies like the united states and eu reduced the stock of imported products they subject to ttbs to 2007 levels that were only 50 per cent as high as their within period peak furthermore a previously unidentified feature of the data is that a much larger share of china s exported products to other developing economies is subject to foreign imposed antidumping than its exports to developed economies the evidence confirms this feature is shared by a number of other major developing economy exporters deepening concern that these discriminatory trade barriers are increasingly a south south phenomenon finally i also clarify emerging trends in countervailing duty anti subsidy use across countries

assessing eco efficiency through the dea analysis and decoupling index in the latin america countries abstract this study was developed according to a two step approach in the first step we provide an investigation of the changes in eco efficiency under constant and variable return to scale while on a second step the evaluation of the decoupling elasticity will be given the impacts of energy economic and environmental determinants inputs on the performance indicators of eco efficiency were calculated as the inverse of the carbon intensity ratio of the gdp over the co2 emissions both from the world development indicators database the changes in eco efficiency and the decoupling elasticity between co2 emissions and economic growth changes data was used for 16 latin america countries according to five year periods from 1994 to 2013 for all the five time span considered it is worth noting that the degree of technical efficiency for the latin america countries is lower than the degree of technological efficiency thus indicating that a portion of the overall inefficiency is due to the fact that these countries are producing below the production frontier rather than to an inefficient use of technology on average the results have confirmed that the technological scale change in energy production is the dominant factor influencing the optimal production frontier in the sample of countries under analysis complementarily according to the mixed results from the decoupling analysis we may conclude that the increase decrease of the co2 per capita emissions was due to other economic and environmental factors rather than to a negative positive effect of the gdp growth rate

the measurement of productive efficiency a reconsideration the purpose of this paper is to generalize the farrell indexes of productive efficiency to nonhomothetic production technologies and at the same time maintain the cost interpretation of the farrell measures since the generalized indexes rely heavily on recent developments in the estimation of frontier cost and production functions several frontier models are reviewed in addition to generalized indexes of technical allocative and overall productive efficiency a variety of single factor efficiency measures are discussed the applicability of the proposed efficiency measures is illustrated with a numerical example of electric power generation

endogenous lobby formation and endogenous protection a long run model of trade policy determination this paper provides a theory of lobby formation within a framework in which trade policy is determined through political contributions under certain conditions free trade turns out to be an equilibrium outcome either when the government has a high affinity for political contributions or when it cares a great deal about social welfare moreover greater inequality in asset distribution results in a greater number of lobbies and in most cases more protection for each of these lobbies furthermore industries with higher levels of capital stock fewer capitalists more inelastic demand and smaller geographical dispersion are the ones that get organized

antidumping and retaliation threats abstract we propose and test two ways in which retaliation threats may dampen the antidumping ad activity we observe first the threat of retaliatory ad actions may make a domestic industry less likely to name a foreign import source in an ad petition second the prospect of a gatt wto trade dispute may make government agencies less likely to rule positive in their ad decision using a nested logit framework we find evidence that both retaliation threats substantially affect us ad activity from 1980 through 1998

exploring the existence of kuznets curve in countries environmental efficiency using dea window analysis abstract this paper using data envelopment dea window analysis and generalized method of moments gmm estimators examines the existence of a kuznets type relationship between countries environmental efficiency and national income specifically it measures the environmental efficiency of 17 oecd countries by constructing environmental efficiency ratios for the time period 1980 2002 the analysis with the application of dynamic panel data reveals that there isn t a kuznets type relationship between environmental efficiency and income allowing for dynamic effects we find that the adjustment to the target ratio is instantaneous we also find that increased economic activity does not always ensure environmental protection and thus the path of growth is important in addition to the growth itself

efficiency subsidies and environmental adaptation of animal farming under cap the purpose of this article is to model the interaction between the targets of the current cap environmental adaptation subsidies and efficiency q1 of animal farming to this end we first have to identify the production frontier and relative efficiency level for each animal oriented farm in the sample the production frontier and efficiency index for each type of farm assuming no specific production functions are identified using data envelope analysis dea techniques we then address the relationship between relative efficiency farm size and environmentally friendly behavior by carrying out a nonparametric regression of efficiency on economic size a proxy for the degree of environmental appropriateness and regional dummies calculations of the efficiency of the farms including direct subsidies are compared with the counterfactual exercise in the case in which direct subsidies are not considered finally we look for relations between subsidies and factors such as farm size efficiency and environmentally friendly behavior one key result shows that on average direct payments generally tend to increase efficiency however in most of the cases the mean efficiency decreases as the percentage of direct payments rises direct payments are found to be positively related to environmentally friendly production at least in germany however in general the direct payment system is not sufficient to offset the fact that the less environmentally friendly farms as well as the larger farms are more efficient

strategic planning of optimal resource allocation in response to global financial crisis a study of international tourist hotels this study is principally designed to examine the changes in the efficiency effective resource allocation and future operation strategies of taiwan s international tourist hotel in global economic downturn at first we set up critical input and output factors and construct an assessment model using data envelopment analysis dea for analysis of relative efficiency further we apply an allocative efficiency model for additional considerations of each input cost and analyse proper and effective resource allocation finally there are significant changes in overall efficiency of international tourist hotels under global financial crisis we can also reach an effective allocation of the overall resources in such cases lowering cost has become a key issue for sustainable operation of international tourist hotel finally the greatest contribution of this study is to further classify the competitiveness and optimal cost allocation of taiwan s international tourist hotels into seven categories based on the

demand and supply dynamics for sequentially released products in international markets the case of motion pictures we develop an econometric model to study a setting in which a new product is launched first in its domestic market and only at a later stage in foreign markets and where the product s performance demand and availability supply are highly interdependent over time within and across markets integrating literature on international diffusion success breeds success trends and the theatrical motion picture industry the focus of the empirical analysis we develop a dynamic simultanenous equations model of the drivers and interrelationship of the behavior of consumers audiences and retailers exhibitors our findings emphasize the importance of considering the endogeneity and simultaneity of audience and exhibitor behavior and challenge conventional wisdom on the determinants of box office performance which is predominantly based on modeling frameworks that fail to account for the interdependence of performance and availability specifically we find that variables such as movie attributes and advertising expenditures which are usually assumed to influence audiences directly mostly influence revenuesindirectly namely through their impact on exhibitors screen allocations in addition consistent with the idea that the buzz for a movie is perishable we find that the longer is the time lag between releases the weaker is the relationship between domestic and foreign market performance an effect mostly driven by foreign exhibitors screen allocations

what explains the proliferation of antidumping laws a recent phenomenon is the rapid spread of antidumping ad laws mainly amongst developing countries i e china india mexico between 1980 and 2003 the number of countries in the world with an ad law more than doubled going from 36 to 97 countries this proliferation of trade protection laws amongst developing countries is likely to have substantial implications for trade as recently shown by vandenbussche and zanardi 2007 the purpose of this paper is to use a duration analysis to investigate the determinants leading a country to adopt an ad law we also analyze the related question of what explains the heterogeneity between countries that can be observed in terms of the time between adoption and their first use of the ad law we find strong evidence that retaliatory motives are at the heart of the proliferation decision as countries that were targeted by ad actions of traditioal users in the past i e us eu are much more likely to adopt an ad law also our evidence suggests that past trade liberalization substantially increases the probability of a country to adopt an ad law in addition we find that the size of the chemicals sector and the extent of steel imports are positively correlated with the probability to adopt the amount of inward fdi on the other hand has a clear negative effect on the probability to adopt while short term macroeconomic factors like gdp growth and exchange rate volatility seem to matter less for adoption asymmetric regional shocks and the development level of a country seem to raise the probability of starting to use an ad law our results are robust to several specifications of duration models

successful movies a preliminary empirical analysis summary our findings lend further support to existing informal evidence that the characteristics of successful films have changed over the past forty years moreover they also suggest that it may well be possible to develop empirical models relating a film s attributes to the likelihood of consumer demand unfortunately such analysis cannot be undertaken without access to more detailed information on the performance and features of individual movies given the interesting characteristics of movies as ideal examples of differentiated products and of the institutional arrangements governing their production and distribution such increased data availability would make this an exceptionally attractive area for applied micro economic research

measuring technical efficiency and productivity growth a comparison of sfa and dea on norwegian grain production data this article compares data envelopment analysis and stochastic frontier analysis to assess efficiency and productivity growth of norwegian grain producers previous studies have dealt with either one of them and less of both for the assessment of productivity growth or regress malmquist productivity indices are derived from both approaches the data cover a 10 year period we find consistency between the approaches to the extent that 1 there are potentials for efficiency improvements but the magnitudes depends on the model applied and by segmentation of the data set 2 there has been a productivity improvement in the sector on average in the interval 30 38 in the period studied and 3 technical change has had the greatest impact on productivity indicating that producers have a tendency to catch up with the front runners in general policy makers are warned not to be indifferent with respect to the approach used for efficiency and productivity measurement as these may give different results

efficiency measurement in the stochastic frontier model abstract deterministic models of technical efficiency assume that all deviations from the production frontier are due to inefficiency critics argue that no allowance is made for measurement error and other statistical noise so that the resulting efficiency measure will be contaminated the stochastic frontier model is an alternative that allows both inefficiency and measurement error advocates argue that the stochastic frontier models should be used despite other potential limitations because of the superior conceptual treatment of noise as will be demonstrated in this paper however the assumed shape of the error distributions is used to identify a key production function parameter therefore the stochastic frontier models like the deterministic models cannot produce absolute measures of efficiency moreover we show that rankings for firm specific inefficiency estimates produced by traditional stochastic frontier models do not change from the rankings of the composed errors as a result the performance of the deterministic models is qualitatively similar to that of the stochastic frontier models

an exogeneity test for a simultaneous equation tobit model with an application to labor supply a test of weak exogeneity in the simultaneous equation tobit model is proposed and illustrated using a female labour supply model estimated using cross section data the test statistic can be simply output from any standard tobit maximum likelihood package and is asymptotically efficient the procedure provides consistent estimators for the simultaneous tobit model whose asymptotic covariance matrix is a simple extension of the usual tobit formula we also provide the lagrange multiplier test of weak exogeneity this abstract was borrowed from another version of this item

how complex do movie channel contracts need to be the motion picture industry is characterized by a dynamic market environment limited shelf space and product category management and consequently complex channel contracts specifying the split of box office revenue between distributors and exhibitors although such a contracting practice creates a considerable administrative effort and channel conflict it is not clear whether such complexity is necessary for superior channel performance this study investigates this question by analyzing the impact of movie contract structure on movie scheduling and channel member profitability we develop and analyze a game theoretic model using the genetic algorithm approach and a decision support system silverscreener to capture strategic behaviors of channel members in a complex market environment we find that simpler two part tariff or 50 50 split contracts perform as well as the current contracts thus the complexity of the market environment need not be reflected in the complexity of the channel contracts channel contract structure has significant impact on channel member profitability and the exhibitor s movie scheduling behavior in particular our results indicate that the flat rate contract structure represents an attractive alternative to the current practice for distributors