new technology adoption in us telecommunications the role of competitive pressures and firm level inducements in this study we examine the reasons for the differential adoption levels of a new technology that of electronic switching across firms in the us telecommunications industry using theoretical postulates from the market structure inducements approach to firm behavior and the behavioral theory of the firm we propose that the incentives to adopt a new technology are positively related to the competitive pressures faced by a firm in its micro market negatively related to past levels of performance and positively related to slack availability our sample consists of 40 of the largest firms in the industry we use firm level data collected for the years 1973 1978 1981 1984 and 1987 and the results indicate strong support for our proposition our findings show that in general market effects via the mechanism of competitive pressures generated are strong in explaining inter firm variations in levels of technology adoption in the period since moves to deregulate the industry began however the firm level effects are equally strong if not stronger in explaining such variations both in the period leading up to the commencement of deregulatory moves and also immediately thereafter

light duty vehicles and external impacts product and policy performance assessment abstract in order to demonstrate that welfare theory can be put into practice mathematical programming methods are used here which can handle the aggregation problems facing us when information concerning the relative valuation of external factors emissions safety risks non renewable energy use noise etc is highly uncertain product and policy performance measures are presented and then applied to one time period real data on the single perhaps most welfare affecting man made consumer product of the 20th century light duty vehicles ldvs the focus when examining costs imposed on society due to individuals or other economic units purchase and use of ldvs is here the total external cost from the choice of ldv technology the relative weights of the external factors are then determined endogenously by first using for each ldv model the unconstrained set of weights most favorable to itself the flexibility of the relative weights is then constrained according to assumed knowledge about true external relative costs by this procedure it is possible to aggregate the multiple societal impact factors of ldvs and thus to measure the total external impact of individual ldv models relative to current best practice technology

optimal taxation and cross price effects on labor supply estimates of the optimal gas tax abstract this study estimates parameters necessary to calculate the optimal second best gasoline tax most notably the cross price elasticity between gasoline and leisure prior theoretical work indicates the importance of this elasticity but despite this almost none of the prior studies of commodity taxation and none of the studies on second best environmental regulation actually estimate it using household data we find that gasoline is a relative complement to leisure and thus that the optimal gasoline tax is significantly higher than marginal damages the opposite of the result suggested by the bulk of the prior literature indeed even if there were no externalities at all associated with gasoline the optimal tax rate would still be almost equal to the average gas tax rate in the u s following this approach to estimate cross price elasticities with leisure could strongly influence estimates of optimal rates for other important commodity or pollution taxes

estimation of returns to scale using data envelopment analysis a comment banker 1984 introduced the idea that the sum of the intensity variables in the dea activity analysis model can be used to identify returns to scale a counterexample in chang and guh 1991 shows that banker s method may fail this prompted banker and thrall 1992 to develop an alternative approach to estimate scale efficiency using dea seemingly unaware of the work by byrnes fare and grosskopf 1984 fare grosskopf and lovell 1985 1994 and fare and grosskopf 1985 etc on the same topic their new approach is very similar to the methodology originated in these references the purpose of this comment is to make our method known and to contrast it to the banker and thrall 1992 approach

comparing regional technical efficiency in uk manufacturing plants the case of northern ireland 1974 1995 this paper uses estimates based on the stochastic frontier production function approach applied to more than 200 four digit uk manufacturing industries covering the period 1974 95 it is shown that manufacturing plants in northern ireland on average operated at lower levels of technical efficiency when compared to their counterparts in other regions of the uk and especially plants located in south east england this lower level of efficiency in the province is analysed both at the aggregate level and the industry level at the industry level the province has fewer plants exhibiting the highest levels of efficiency within most industries and too few plants open and close to cleanse manufacturing of the worst plants and those plants that do open and close often do not have efficiency levels such as to bring about improvements to the aggregate efficiency level the major conclusion is that northern ireland needs to reduce the long tail of weaker plants that tend to drag down average efficiency one w

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

product quality product price and share dynamics in the german compact car market the present paper examines one of the central elements of evolutionary thinking the replicator dynamics mechanism using data on product characteristics of automobiles sold on the german domestic market over the period 2001 2006 we construct a fitness variable for each car model applying non parametric efficiency measurement techniques better known as data envelopment analysis dea the basic question we intend to answer is whether cars providing a higher quality price ratio for consumers tend to increase their market share compared to variants with lower quality price ratio for consumers the relationship between a car models fitness and its market performance is empirically tested in a regression framework the results show that the principle of growth of the fitter is working as suggested by evolutionary theory in particular we find that car models with considerably lower fitness than the market average lose whereas models with above average fitness gain additional market shares

technical efficiency and productivity change of china s iron and steel industry abstract the recent economic reform of china s iron and steel industry has resulted in its rapid expansion to become the largest in the world however the resultant increase in the use of energy and other resources has resulted in severe environmental degradation to further increase output while reducing emissions and waste will require increased productivity in this paper the technical efficiency and malmquist productivity indexes of a sample of 88 enterprises producing 72 percent of the industry s output were determined for the period 1989 1997 with the aim of gaining some insights into the policy options likely to achieve this

innovation diversity and diffusion a self organisation model a number of features of innovation diffusion are identified appropriability diversity expectations selection learning and spillover externalities a dynamic model is formul ated to embed the diffusion question into a more general framework of disequilibrium competition the model incorporates distinct vintage structures reflecting a change in technological trajectory learning by using a nd expectations driven investment rules of thumb simulation studies reveal robust quasi logistic curves but a complicated pattern of net market share gains and losses uncertainty regarding the rationality of early or late adoption it is argued ensures that the requisite behavioral variety is present to generate these diffusion patterns copyright 1988 by royal economic society

illustrating adverse selection in health insurance markets with a classroom game this paper describes a classroom game that illustrates the effects of asymmetric information and adverse selection in health insurance markets the first part of this game simulates a market in which buyers can purchase insurance from sellers in some periods government regulation prevents sellers from using information about buyer type to determine premiums the results demonstrate the classic prediction that asymmetric information will result in adverse selection here low risk buyers will forego the purchase of insurance at a measurable loss of potential earnings in the second part of the game sellers and buyers can trade two different types of health insurance policies one moderate and another generous under government mandated community rating and limits on premium increases no buyers will purchase the generous plan questions are provided to stimulate discussion of the causes and consequences of adverse selection for consumers and insurers and possible solutions for employer and government sponsored programs

the testing and estimation of complete demand systems on household budget surveys a recent demand system aids is extended to include family size explicitly and then estimated on indian budget data the estimation using non linear fiml is performed first on pure time series and then on pooled cross section data within and across equation restrictions are imposed and tested the principal results include u a significant price and family size effects on the budget share of an item b sensitivity of test results on homogeneity and symmetry to i rural urban data ii time series cross section and iii inclusion omission of family size c considerable difference between pure time series and pooled cross section estimates and d difference between the expenditure responses of the rural and urban consumer

how much redistribution is possible through commodity taxes abstract this paper aims to quantify the redistribution which can be attained as the outcome of indirect taxation this question is of crucial relevance to many countries which are constrained to depend primarily on indirect taxes i assess the maximum possible redistribution by imposing the most redistributive indirect taxation the public budget is balanced and the real income gain to the worst off is taken as the metric of redistribution ceilings on this metric are first obtained within a general set up and then in a number of specific models the resulting redistribution is found to be meager as this is the outcome of the most redistributive taxation redistribution from any real world indirect taxation will be even smaller

general equilibrium analysis of black and white markets a computational approach abstract this paper explores the inter relationship between black and white markets and presents a formulation in which equilibrium conditions hold separately for each type of market for each product with linking conditions across market types using a traditional goods and factor general equilibrium model the simultaneous operation of price controls on white markets and surveillance with penalties for those caught trading on black markets is modelled a numerical example of such an economy is presented using data for india and equilibria under coexistence are reported

frontier production functions and technical efficiency measures the concept of technical efficiency is central to measuring the firm performance the measurement of technical efficiency has proved difficult and complex and the literature provides a range of methodologies this paper reviews the various methodologies for measuring technical efficiency and offers a comparison between established methods of measurements the discussion is literary with less mathematical jargons and equations the objective of this paper is not to be exhaustive but to be up to date and to provide a significant discussion on some of the core methods of measuring technical efficiency

sensitivity of optimal commodity taxes to relaxing leisure goods separability and to the wage rate abstract this paper uses a new labour augmented demand functional form to calculate optimal commodity taxes for india the optimal taxes which are far from uniform are extremely sensitive to deviation from leisure goods separability and to variation in the wage rate parameter

ripoffs lemons and reputation formation in agency relationships a laboratory market study this paper examines the effect of the moral hazard problem in an agency relationship where the principal cannot observe the level of service provided by the agent using data from laboratory markets we demonstrate that the presence of moral hazard leads to shirking by agents however this lemons phenomenon occurs only about one half of the time while there is evidence of reputation effects in these markets seemingly reputable agents are often able to use opportunities for false advertising to their advantage and ripoff principals there has been considerable discussion about the price and quality of services provided within certain principal agent relationships for example the securities and exchange commission and congress have focused a great deal of attention on the price and quality of outside audit services to investors the securities and exchange commission and the department of justice have considered the regulation of investment banking contracts because of their concern over the price and level of services provided finally a large and growing literature has focused attention on the conflict between owners and managers and the problem of shirking by managers the above examples share a feature common to most agency relationships in that the services provided by the agent have a hidden characteristic specifically the principal cannot costlessly observe the level of service provided by the agent and thus cannot determine whether an unfavorable outcome is due to the agent s shirking or due to an unfortunate occurrence of a state of nature a large theoretical literature has developed e g shavell 9 which proposes remedies for dealing with the moral hazard problem that arises in these situations yet to our knowledge there has been no direct empirical test demonstrating that the moral hazard problem does in fact lead to shirking by agents furthermore the theoretical literature provides a number of competing models about the market s ability to provide pareto optimal levels of service in the presence of moral hazard

ranking efficiency units in dea using bootstrapping an applied analysis for slovenian farm data this article explores how data envelopment analysis dea along with a smoothed bootstrap method can be used in applied analysis to obtain more reliable efficiency rankings for farms the main focus is the smoothed homogeneous bootstrap procedure introduced by simar and wilson 1998 to implement statistical inference for the original efficiency point estimates two main model specifications constant and variable returns to scale are investigated along with various choices regarding data aggregation the coefficient of separation cos a statistic that indicates the degree of statistical differentiation within the sample is used to demonstrate the findings the cos suggests a substantive dependency of the results on the methodology and assumptions employed accordingly some observations are made on how to conduct dea in order to get more reliable efficiency rankings depending on the purpose for which they are to be used in addition attention is drawn to the ability of the slice model implemented in gams to enable researchers to overcome the computational burdens of conducting dea with bootstrapping

tax reform results with different demand systems abstract we calculate the marginal welfare costs for a twelve commodity classification of the belgian indirect tax system price elasticities are estimated with rotterdam aids cbs and the linear expenditure system the ranking of the marginal welfare costs is similar when we use unrestricted estimates of the first three systems after the symmetry condition of the slutsky matrix is imposed the differences become more important however they diminish with increasing inequality aversion

on calculating the optimal commodity tax rate an alternative to social welfare maximisation abstract this paper proposes an alternative to the traditional social welfare function maximisation procedure for the calculation of optimal commodity tax rates the proposed procedure uses a loss minimisation strategy based on an explicit model of redistribution illustrative calculations on indian budget data show the potential usefulness of the procedure

a measurement of firm and input specific technical and allocative effiencies the objective of this paper is to suggest an alternative modelling to the existing stochastic frontier production function to provide measures of firm and input specific technical and allocative effciencies

measuring local government spending efficiency evidence for the lisbon region afonso a and fernandes s 2006 measuring local government spending efficiency evidence for the lisbon region regional studies 40 39 53 the expenditure efficiency of portuguese local governments in 2001 was assessed using data envelopment analysis for production frontier estimation a composite municipal output indicator was constructed and input and output efficiency scores were computed for 51 portuguese municipalities in the region of lisbon and vale do tejo this allows a determination of the extent of municipal spending that seems to be wasted relative to the theoretical best practice frontier the results suggest that vale do tejo municipalities could achieve on average the same level of output allegedly using around one third fewer resources improving performance without necessarily increasing municipal spending municipal expenditure technical efficiency data envelopment analysis dea lisbon afonso a and fernandes s 2006 l efficacite de la depense de l administration locale d

the footprint of evolutionary processes of learning and selection upon the statistical properties of industrial dynamics evolutionary theories of economic change identify the processes of idiosyncratic learning by individual firms and of market selection as the two main drivers of the dynamics of industries are such processes able to account for the statistical regularities which industrial structures and dynamics display in this work we address this question by means of a simple multi firm model formalizing the mechanisms of learning and selection as such despite its simplicity the model is able to robustly reproduce an ensemble of empirical stylized facts including ample heterogeneity in productivity distributions persistent market turbulence and fat tailed distribution of growth rates

measuring market power in the ready to eat cereal industry the ready to eat cereal industry is characterized by high concentration high price cost margins large advertising to sales ratios and numerous introductions of new products previous researchers have concluded that the ready to eat cereal industry is a classic example of an industry with nearly collusive pricing behavior and intense nonprice competition this paper empirically examines this conclusion in particular i estimate price cost margins but more importantly i am able empirically to separate these margins into three sources i that which is due to product differentiation ii that which is due to multi product firm pricing and iii that due to potential price collusion the results suggest that given the demand for different brands of cereal the first two effects explain most of the observed price cost margins i conclude that prices in the industry are consistent with noncollusive pricing behavior despite the high price cost margins leading firms are able to maintain a portfolio of differentiated products and influence the perceived product quality it is these two factors that lead to high price cost margins

real exchange rate misalignment and redistribution abstract developing countries frequently maintain an overvalued nominal exchange rate resulting in real exchange rate misalignment to finance import demand at the overvalued exchange rate countries have to raise the level of income taxation or they have to resort to monetary finance this paper explains nominal and implicitly real exchange rate misalignment as the outcome of the political process more specifically the paper explains the misalignment of an import exchange rate relative to a market exchange rate used for exports voters differ in their ownership of a single factor of production real exchange rate overvaluation results if the median voter spends a relatively large share of his income on the importable good the political economy of explicit and implicit import subsidies is first analyzed in a real model which is then extended to include money holdings and exchange rate policy

labour supply commodity demand and marginal tax reform this paper examines the implications of extending the ahmad stern model of indirect tax reform to include labour supply the inclusion of labour supply alters the basic measure of marginal revenue cost mrc of indirect taxation and introduces the possibility of calculating a mrc for direct taxation the paper derives the expressions for these revised mrcs and provides estimates from irish data it then examines the sensitivity of the results to assumptions regarding functional form and in particular goods leisure sc parability in setting optimal tax rates policy makers face considerable difficulties explicit assumptions must be made regarding the underlying preferences of the consumer i e the functional form for the utility and demand functions and also about how expenditures are distributed sensitivity to underlying preferences is discussed by deaton i 98 i and is empirically examined by ray i986 and ebrahimi and heady i988 policy makers also face the problem that even when they do provide explicit forms for demand functions they face difficulties regarding the reliability of estimates and are also evaluating demand responses at a point possibly quite far away from the optimum the difficulties outlined above led to the development of the marginal tax reform literature with the seminal paper in this area by ahmad and stern i984 this approach has the considerable advantage of not requiring the choice of explicit utility functions nor of distributions of expenditure but instead merely requiring information on the actual position of the economy at a single point in time using actual consumption and distributions of expenditure it must be noted that tax reform does require information on demand responses so that results in this area can still be sensitive to the specification of consumer preferences and demand systems however tax reform results appear to be less sensitive than do tax design results to this

innovative performance effects of institutional quality an empirical investigation from the triad using data for a set of 823 r d intense manufacturing firms within the triad and the quality of government qog dataset over the 2002 2010 period this article investigates the effects of institut

optimally uniform commodity taxes and non linear engel curves a generalisation of the linear case abstract a sufficient condition for optimally uniform commodity taxes is derived in the more realistic non linear engel curve case and in a form that allows easy checking from the various parameter estimates this general condition is shown to yield certain well known sufficient conditions as special cases

a dea model to evaluate car efficiency this paper evaluates the efficiency of personal cars by using the non parametric data envelopment analysis dea approach analysis and comparison is performed in a normative manner since all the economic and technical parameters used four and ten respectively are not explicitly weighted the data set covers 121 different car models in 1997 as appeared in the german auto motor und sport magazine

the theory of reform and indian indirect taxes abstract given a set of value judgements an initial state and a model of the economy one can ask whether some feasible tax change would increase welfare we do this by defining the marginal cost in terms of welfare of raising an extra rupee from the i th good the inverse optimum problem is the calculation of non negative welfare weights on households which imply that the initial state is optimum if no such welfare weights exist then a pareto improvement is possible we illustrate the concepts and results using data from the indian economy for 1979 1980 directions of tax reform for a number of specific social welfare functions and for pareto improvements are presented

the genealogy of modern theoretical public economics from first best to second best abstract the development of second best modelling in the seventies has shaped modern theoretical economics the paper discusses some key changes in the economists conceptions the first two sections examine the efficiency equity dilemma the study of non convexities has shown that counterintuitive efficiency enhancing income redistribution might occur the introduction of asymmetric information has shed doubts on virtues of lump sum compensation the last sections focus on the intricate geometry of second best optimisation and the ambiguous value of the signals provided by the price system outside a first best world

nonparametric analysis of technical and allocative efficiencies in production in this paper we extend varian s 1984 nonparametric production analysis to situations when the set of observed output input and price data is not consistent with profit maximization for at least one firm in such cases varian s results imply that no production possibility set containing all observations can rationalize the observed data we identify each firm whose performance given the prices faced by it may be found consistent with profit maximization relative to some production possibility set containing all observed output input vectors we show that the set 4 of all such firms can itself be weaklv rationalized in the sense that there exists a closed convex and monotone production possibility set that contains all the observations and relative to which the performance of all the firms in the set 8o is consistent with profit maximization given their respective prices by definition firms not included in this largest set d of efficient observations unambiguously deviate from profit maximizing behavior for any production possibility set containing all observations we follow farrell 1957 and analyze these deviations into technical and allocative efficiency measures considering as admissible all closed convex and monotone production possibility sets relative to which the performance of each firm in the set g remains consistent with profit maximization we then describe nonparametric methods for determining the tightest upper and lower bounds on the technical allocative and aggregate efficiency measures evaluated relative to all such admissible production possibility sets it is seen that the tightest upper bound on the technical efficiency measure is the same as the value computed by the nonparametric efficiency evaluation technique known as data envelopment analysis thus establishing a link between this literature in management science operations research and the nonparametric production analysis in economics

recent progress in applied bayesian econometrics abstract bayesian methods are widely used by theoretical econometricians and statisticians but have not won widespread acceptance from applied researchers after briefly describing the basic of the bayesian approach we discuss several issues relating to the empirical application of bayesian methods the existing bayesian empirical literature is also partially summarized the remainder of the paper offers a non technical survey of some recent computational advances in bayesian econometrics the overall goal is to persuade economists that bayesian methods are both computationally feasible and easy to implement in empirical research

advertising and quality in the u s market for automobiles using data consisting of domestic and foreign automobiles over the period 1985 1990 the hypothesis that advertising serves as a signal of higher quality is empirically tested this is accomplished by examining how advertising levels vary with a quality measure that is not observable at the time of purchase but becomes available subsequent to a model s release above average quality results in expenditures that are 15 higher than average quality outlays lending further support to the signalling hypothesis the positive advertising quality relationship holds strongest when a model significantly improves in quality relative to the previous year s model

estimating multiple discrete choice models an application to computerization returns buyers in many markets face multiple discrete choices they can purchase multiple units as well as multiple brands at the same time this paper presents a multiple discrete choice model for the analysis of differentiated products demand users maximize profits by choosing the number of units of each brand they purchase i estimate the model using micro level data on the demand for personal computers i use the estimated demand structure to assess the welfare gains from computerization and technological innovation in peripherals the estimated return on investment in personal computers is 92 moreover a 10 increase in the performance to price ratio of microprocessors leads to a 2 2 gain in the estimated user surplus the personal computer pc market is of interest to industrial organization economists because of its size the continual technological change and above all because of the farreaching implications of pcs on the economy as a whole several distinct features make pc demand difficult to model pcs are a differentiated durable good in constant technological evolution moreover buyers make multiple discrete choices firms according to our data spread their purchases of pcs over different brands at the same time they buy pcs in blocks several units of each brand that they have chosen the aim of the paper is to present a model that captures these features and to use this model to estimate the welfare gains from computerization classical discrete choice models allow one choice among mutually exclusive alternatives in contrast the proposed framework allows users to demand multiple units and multiple brands the model can be applied to other cases of multiple discrete choices e g the composition of airline fleets car holdings per household the fields of the faculty in economics departments household cereals consumption or any other good consumed in more than one variety during a relevant time period although pervasive multiple discrete choice problems have received little attention because of their complexity a central issue regarding the pc market is the current controversy in the economics literature about the computerization puzzle this puzzle stems from the empirical finding that computerization has had no effect on firm productivity griliches and siegel 1991 and morrison and berndt 1990 contrary to those results hendel 1994 and lichtenberg 1995 using more disaggregate data than most previous studies report excess returns to computerization this indicates that data aggregation may have created the computerization puzzle in this paper i present a model consistent with the basic

a dynamic analysis of expenditure patterns in rural india abstract recent generalisations of the linear expenditure system have concentrated on its restrictive assumption of separable preferences but underplayed its equally restrictive assumption of linearity in income i e constant marginal budget shares this reflects the data base which has usually been long time series of disaggregated consumer expenditure data such generalisations are inappropriated for developing countries which rely on highly aggregated commodity expenditure data from budget surveys with more variation in income responses is introduced variation in prices a general procedure for non linearising income but rather limited applied to some recent les generalisations to generate still further geenralisations and then used to analyse rural india s expenditure behaviour the results decisively support the suggested generalisation and also provide evidence in favour of dynamic behaviour and habit persistence on budget data

sensitivity of optimal commodity tax rates to alternative demand functional forms an econometric case study of india this study investigates on a nine commodity disaggregation of indian budget data nss 28th round the sensitivity of optimal commodity tax rates to alternative demand systems les and rnlps optimality is used here in the very special sense of being conditional on observed expenditure and fixed consumer prices the alternative sets of tax rates agree at low levels of inequality aversion but disagree widely at rawlsian levels les is heavily rejected in favour of its one parameter generalisation rnlps the results suggest that les price elasticities should not be used in optimal tax calculations the optimal tax rates imply only a modest redistribution

market deregulation trade liberalization and productive efficiency in bangladesh agriculture an empirical analysis the impact of trade liberalization and of market deregulation in general on the performance of agriculture remains contentious and empirical issue in the literature following the random coefficient frontier modelling framework this paper attempts to contribute to this debate by computing the farm specific productive efficiency indices in bangladesh agriculture before and after reform it also examines the impact of some farm specific and policy variables on productive efficiency the empirical results show that there are wide variations in productive efficiency across farms and regions and the average efficiency of all regions increased modestly by 8 percentage points from the pre reform to post reform period the efficiency differentials are largely explained by farm size infrastructure households off farm income and the reduction of government anti agricultural bias in relation to trade and domestic policies the implication of these results suggests the need for further policy reform to augment p

the effect of professional sports on the earnings of individuals evidence from microeconomic data this article examines the impact of professional sports franchises in labour markets using data from the march supplement to the current population survey cps for workers employed in specific occupational groups in all large us cities from 1983 to 2002 results from a standard wage model suggest that professional football franchises increase average hourly and weekly earnings of males employed in these occupations but professional baseball franchises reduce them these results support growing evidence that professional sports affect labour markets however the mixed nature of the association between sport and earnings provides little economic justification for government subsidies for professional sport

classroom games a market for lemons abstract the incentives that arise in markets with asymmetric information are illustrated in the classroom exercise presented here student sellers choose both a quality grade and a price for their products initially both prices and grades for all sellers are posted and buyers select from these offerings in this full information setup the market prices and grades quickly reach efficient levels that maximize total surplus next although sellers continue to choose grades and prices only prices not grades are posted for buyers to see when they shop the grades and prices then fall to inefficiently low levels the observed market outcomes in this exercise can stimulate useful discussion of asymmetric information market failure and remedies such as quality standards and warranties

advertising and product quality in posted offer experiments advertising and product quality in posted offer experiments i introduction for years the federal trade commission ftc has attacked unfair and deceptive advertising recently it has turned its attention to errors of omission rather than commission by challenging agreements among sellers to limit advertising even when it is truthful one reason for eliminating advertising restrictions is to stimulate competition in the advertised dimension of the good or service for example price advertising may result in more price competition on the other hand professional associations argue that price competition causes product quality to deteriorate because sellers of high quality services are forced to match the lower prices of sellers of low quality products and through their codes professional associations have implicitly or explicitly discouraged some forms of advertising including price advertising restrictions of this nature still exist in some local markets although they have become the subject of ftc litigation 1 the quality deterioration argument of professional associations is plausible only when buyers are unable to observe quality prior to purchase 2 when buyers cannot distinguish quality moral hazard invites sellers to lower cost by providing lower quality adverse selection can result from price advertising causing lower cost products to drive out higher cost products as argued by akerlof 1970 the opposite point of view is that even when quality cannot be determined prior to purchase price advertising may enable sellers to signal quality and develop reputations 3 moreover transactions repeatedly involving the same buyers and sellers may enable buyers to form expectations about seller quality based on their experience that can make it worthwhile for a seller to provide higher quality the series of laboratory experiments described here permits the evaluation of market performance when buyers have very limited information the claim to be investigated is that price advertising prevents quality deterioration and improves market efficiency reputation formation through advertising is emphasized instead of other mechanisms such as warranties that may prevent quality deterioration 4 so that quality can be kept relatively neutral and easily understood by subjects we represent it as the grade of a commodity the structure underlying the experiments is based on holt s model of the determination of industry quality which is summarized in schmalensee 1979 demand is induced through the values for which buyers can redeem their purchases value is linearly related to grade so that no difference between average and marginal valuation of quality can arise to cause nonoptimal quality as it did in spence 1976 the production cost for each seller is quadratic in the grade selected by the seller therefore the efficient grade level is unique the most closely related experimental work on product quality decisions is reported in lynch miller plott and porter 1986 in their experiments sellers chose one of two quality levels prices were determined in an oral double auction efficient price and quality outcomes resulted when prospective buyers were given full information about quality removing the identities of sellers and allowing only post purchase quality information sometimes resulted in a lemons outcome in which sellers offer a low quality product even though the market would be more efficient with the production and sale of a high quality product private information tended to yield less efficient outcomes than full public information the posted offer experiments reported in this paper differ from the oral double auction experiments in lynch miller plott and porter because one of our objectives was to examine the effect of advertising restrictions on market efficiency in our experiments price advertising is implemented in a standard posted offer auction

optimal taxes and the structure of preferences if optimal tax theory is to be the basis for calculating tax rates a close understanding is required of the relationship between the structure of preferences and the configuration of optimal tax rates otherwise hypotheses chosen by the econometrician for practical convenience may completely determine the results independently of measurement this paper explores the relationship between various types of separability particularly weak and implicit separability and optimal tax rates in the various models discussed in the literature the use of distance functions and the antonelli matrix provides a significant unification of previously disparate results in the final analysis optimal tax theory should be the basis for actual calculation of tax rates although recently there have been great advances in theoretical results and in our understanding of their meaning we are still some way from a working knowledge of whether uniform commodity taxes are in practice optimal or if not which commodities should be discriminated against present theoretical formulae do not yield clear cut results except in special cases and it has recently become clear that optimal rates depend crucially on the detailed structure of consumer preferences for example atkinson and stiglitz 3 show that with an optimal nonlinear income tax discriminatory commodity taxes are only necessary to the extent that individual commodities are not weakly separable from leisure more recently deaton 6 has shown that a similar result holds for what is perhaps the most interesting of the standard models that where there are many consumers and only a linear income tax and proportional commodity taxes are allowed in this case separability between goods and leisure together with linear engel curves for goods removes the need for differential commodity taxation in consequence nothing can be learned about commodity taxes from consumer demand studies in which commodity demands are explained conditionally on total expenditure and commodity prices and which assume linear engel curves all such studies require separability from leisure as a maintained hypothesis and so are consistent with uniform commodity taxation these results suggest that the prospects for meaningful empirical calculations of tax rates are bleak econometricians estimating commodity demand and labor supply equations make generous use of separability assumptions to enable estimation at all in consequence it is likely that empirically calculated tax rates based on econometric estimates of parameters will be determined in structure not by the measurements actually made but by arbitrary untested and even unconscious hypotheses chosen by the econometrician for practical convenience to remedy this situation and as a prelude to fruitful empirical work it is necessary to have a more explicit understanding of how preference structure affects optimal tax rates such is the object of this paper three different

predation asymmetric information and strategic behavior in the classroom an experimental approach to the teaching of industrial organization abstract classroom market experiments can complement the theoretical orientation of standard industrial organization courses this paper describes various experiments designed for such courses and presents details of a multi market game with entry and exit in this experiment incumbents have a cost advantage in their home markets and mobile firms decide which market to enter after entry decisions are made firms choose prices and quantities to offer for sale predatory pricing is possible with this setup and the experiment can be used to motivate discussions of monopoly competition entry and efficiency other classroom experiments with an industrial organization focus are surveyed

a computational procedure for calculating optimal commodity taxes with illustrative evidence from indian budget data a simple procedure for calculating optimal commodity taxes is proposed which takes into account the simultaneous interdependence of taxes expenditure and price levels responses the method also allows for the social marginal utility of income to depend on prices besides expenditures in a manner implied by the assumed preference functional form illustrative calculations on indian budget data provide evidence not only in favor of the procedure but of considerable sensitivity of directions of marginal tax reforms to the data set rural or urban used and of optimal tax estimates to demand functional form copyright 1989 by the editors of the scandinavian journal of economics

classroom games trading in a pit market this paper describes a classroom exercise that resembles trading in the pit of some financial and futures markets playing cards are used to induce supply and demand functions instructions and helpful hints are provided the exercise facilitates an understanding and appreciation of the robustness and efficiency of the textbook model of perfect competition

x efficiency and technical efficiency efficiency measurement has become a very popular field in applied economics in recent years and with this interest there has been a large intellectual investment in refining the empirical methods available to researchers in the area in this paper we relate these developments to harvey leibenstein s original 1966 insight into the psychological ideas underlying the notion that economic agents may not achieve maximal efficiency in their productive decisions and behaviour of course it is always possible to argue that apparent inefficiency only arises from a failure of the observer to realise what it is that is being maximized however we evade this easy escape route into non falsifiable hypothesizing and instead take at face value the fact that too many empirical studies have come up with substantial measures of inefficiency for us to ignore its importance for normative economics

exploring the processes of firm growth evidence from a vector auto regression this article offers many new insights into the processes of firm growth by applying a vector autoregression model to longitudinal panel data on french manufacturing firms we observe the coevolution of key variables such as growth of employment sales gross operating surplus and labor productivity growth preliminary results suggest that employment growth is succeeded by the growth of sales which in turn is followed by growth of profits generally speaking however growth of profits is not followed by much employment growth or sales growth quantile regressions highlight some asymmetries between negative growth and fast growth firms

innovation and technical change abstract in previous work it was established that the u k tractor industry was characterised by a high degree of technical change and that this was brought about by a process of more or less continuous incremental innovation what was lacking was an analysis of how much technical change had been introduced and an indication of the role played by technical change in determining the performance of the u k tractor industry internationally this paper concludes that on the average technical change in the industry had increased by as much as 150 percent during the years 1959 1977 though there is some indication that the rate of change might now be slowing somewhat in order to determine the relative importance of technical change a method was developed to operationalise the distinction between price and non price competition as well as the idea of intrinsic technical and associative non technical factors as constituents of the latter based on cross sectional data for the year 1978 it has been possible to show that british manufacturers tend to produce moderately priced tractors of low to medium technical sophistication that german manufacturers produced the most technically sophisticated tractors that the italian manufacturers are not generally more sophisticated technically than the british producers except with respect to their development of four wheel drive and that comecon based producers combine a very low price with some degree of technical sophistication finally it has been possible to show that the tractors with the highest sales are among the less sophisticated in each of the power ranges investigated and that new entrants used technical sophistication as an element of their entry strategy the answer to the question of what allows the market leader to be market leader required the development of measures for associative non price factors such as the availability of a dealer network brand loyalty resale prices of tractor models etc by performing a regression analysis on these measures along with previously derived measures of quality adjusted price and relative technical sophistication it has been possible to show that market leadership is achieved as a result of a balance of a number of factors the most important of which are the size of the dealer network warrants cost advertising technical sophistication and price

economic efficiency and frontier techniques abstract most of the literature related to the measurement of economic efficiency has based its analysis either on parametric or on non parametric frontier methods the choice of estimation method has been an issue of debate with some researchers preferring the parametric and others the non parametric approach the aim of this paper is to provide a critical and detailed review of both core frontier methods in our opinion no approach is strictly preferable to any other moreover a careful consideration of their main advantages and disadvantages of the data set utilized and of the intrinsic characteristics of the framework under analysis will help us in the correct implementation of these techniques recent developments in frontier techniques and economic efficiency measurement such as bayesian techniques bootstrapping duality theory and the analysis of sampling asymptotic properties are also considered in this paper

offering versus choice in 401 k plans equity exposure and number of funds records of over half a million participants in more than 600 401 k plans indicate that participants tend to allocate their contributions evenly across the funds they use with the tendency weakening with the number of funds used the number of funds used typically between three and four is not sensitive to the number of funds offered by the plans which ranges from 4 to 59 a participant s propensity to allocate contributions to equity funds is not very sensitive to the fraction of equity funds among offered funds the paper also comments on limitations on inferences from experiments and aggregate level data analysis how much and how to save for retirement is one of the most important financial decisions made by most people defined contribution dc pension plans such as the popular 401 k plans are important instruments of such savings by 2001 year end about 45 million american employees held 401 k plan accounts with a total of 1 75 trillion in assets holden and vanderhei 2001 an important characteristic of these plans is that the participant has responsibility over his savings among a plan s various funds how responsibly do the participants behave in particular how sensitive are participants choices to possible framing effects associated with the menu of choices they are offered to explore these questions this paper analyzes a data set recently provided by the vanguard group consisting of records of more than half a million participants in about 640 dc plans these plans offer between 4 and 59 funds in which participants can invest all plans offer at least one stock fund 635 plans

expenditure function estimates of the efficiency and distributive impact of indirect taxes in the united kingdom abstract this paper uses the expenditure function to consider the efficiency and distributional impact of indirect taxes in the united kingdom estimates of the parameters of the linear expenditure system of demand equations are employed to measure the compensating variation and equivalent variation costs of taxes on households in different income groups in addition distributional weights are used to consider the overall impact of different taxes and tax changes on social welfare finally we consider other types of demand system estimates which might be used in this kind of exercise

testing for linear engel curves an application of nles to cross country data abstract the demand system nles proposed recently by blundell and ray 1982 is shown to aggregate consistently across households it is then used to analyse time series expenditure data of korea greece israel and puerto rico the empirical results reject linear engel curves for each country

cluster sample methods in applied econometrics inference methods that recognize the clustering of individual observations have been available for more than 25 years brent moulton 1990 caught the attention of economists when he demonstrated the serious biases that can result in estimating the effects of aggregate explanatory variables on individual specific response variables the source of the downward bias in the usual ordinary least squares ols standard errors is the presence of an unobserved state level effect in the error term more recently john pepper 2002 showed how accounting for multi level clustering can have dramatic effects on t statistics while adjusting for clustering is much more common than it was 10 years ago inference methods robust to cluster correlation are not used routinely across all relevant settings in this paper i provide an overview of applications of cluster sample methods both to cluster samples and to panel data sets

are efficient linear taxes inequitable abstract i explore the household weights in the bergson samuelson social welfare functions which have a turning point at an efficient linear tax structure the inverse optima a tax structure is defined to be inequitable if every inverse optimum has weights that increase with household productivity over part of the productivity range i find that the inequity of an efficient tax structure depends on the normality of leisure on the number of households and on the natureof household demands an efficient indirect tax structure is not inequitable if the expenditure share of each taxed commodity is constant across households this has welfare implications for the choice of tax instrument to finance a project accepted under benefit cost analysis

the efficiency of museums a stochastic frontier production function approach this article examines the technical efficiency of museums based upon data derived from a questionnaire survey of south west england a stochastic frontier production function is estimated with output measured in terms of visitor numbers the cobb douglas function is shown to be the best representation of the production function average levels of efficiency are estimated to be fairly low at 45 5 with wide variations across museums the results indicate that high levels of public funding and voluntary activity have a significantly negative impact on technical efficiency it is argued that further research is needed to develop more sophisticated measures of the output of cultural industries and understand the economic importance of volunteers

the measurement and sources of technical inefficiency in the indonesian weaving industry production function models are estimated with a time series of cross section data on indonesian weaving establishments the sources of technical inefficiency are investigated three firm attributes are identified as being potentially related to firm efhciency tbey are firm ownership age and size the importance of these attributes as sources of inefficiency in the indonesian weaving industry is investigated and the implications of the find ings discussed

efficiency performance and regulation of the international gas industry a bootstrap dea approach abstract natural gas has become increasingly important as a source of energy in recent years it is widely viewed as an attractive means of realizing environmental objectives post kyoto and individual country gas industries have been extensively restructured to encourage investment from the private sector barriers to international trade in gas have fallen particularly in areas such as europe and asia as pipeline facilities have expanded and trading systems have become established an important question for policy makers concerns the use of scarce resources by this expanding industry regulatory authorities increasingly use efficiency comparators to incentivise minimum cost use of resources by price cap methods yardstick competition and other techniques this paper explores some of the policy developments which affect efficiency of resource use in the gas industry and uses data envelopment analysis to measure relative performance at the individual country level recent developments in bootstrapping techniques are used to correct efficiency estimates for bias and to assess the uncertainty surrounding such estimates the implications of these results for regulatory authorities are then explored

a proposal for using incentive precommitments in public enterprise funding abstract among the central problems of less developed countries ldcs is the poor performance of their public enterprises pes and the seemingly limited ability of governments and other agencies to improve this performance this paper proposes that project agencies be induced as a part of the initial financing of pes to undertake specific types of precommitments a precommitment to liquidate the project if its ex post performance falls below some threshold level and a precommitment to link a non negligible part of employee compensation to actual performance our proposal is not guaranteed to improve pe performance because there are no perfect solutions to what is inherently a politically difficult problem nevertheless we argue that as long as public enterprises exist independent of whether this is a good idea or not a precommitment to use performance based incentives is likely to improve their performance we discuss the primary sources of pe losses compare their probable magnitudes and explain how various precommitments are likely to ameliorate such losses our proposal is aimed at stimulating more thought on this subject and is addressed to a broad audience

a note on optimal commodity taxation in india abstract optimal commodity tax rates are calculated and their redistributive impact is studied in the indian context using a new piglog demand system introduced in coondoo and majumder 1987 the results are compared with those obtained by ray 1986 on the same data using les and rnlps

bayesian efficiency analysis with a flexible form the aim cost function in this article we describe the use of gibbs sampling methods for drawing posterior inferences in a cost frontier model with an asymptotically ideal price aggregator nonconstant returns to scale and composed error an empirical example illustrates the sensitivity of efficiency measures to assumptions made about the functional form of the frontier we also examine the consequences of imposing regularity through parametric restrictions alone

from utilities to mental models a critical survey on decision rules and cognition in consumer choice this work critically discusses a selected body of mainly experimental studies on consumer behavior in the light of two general questions first can one identify within the vast literature from psychology marketing etc a few stylized facts which might be the grounds of a behavioral theory of consumption parsimonious enough to be useful to economic theorizing and at the same time not in open violation of the evidence on how consumers actually behave second to what extent should such theories be nested into an explicit account of the cognitive processes leading to particular consumption acts copyright 1999 by oxford university press

estimation of complete demand systems from household budget data the linear and quadratic expenditure systems in this paper we explore two issues in empirical demand analysis the estimation of complete systems of demand equations using household budget data section i and the incorporation of demographic characteristics into such systems section ii although there are numerous studies which use time series data to estimate complete demand systems and many which estimate engel curves from household budget data there are virtually none which combine budget data from different periods to estimate complete systems since each budget study corresponds to a single price situation one might conjecture that estimation of complete systems would not be possible unless budget studies were available from a large number of periods this is incorrect in section i we argue that interesting complete demand systems can be estimated from a small number of budget studies despite the limited price variability represented in such data to demonstrate this we use budget study data for two periods to estimate a pair of related demand systems the familiar linear expenditure system les and a quadratic expenditure system qes a generalization of les in which the demand equations are quadratic in total expenditure the inclusion of demographic variables in the analysis of household consumption patterns is desirable because there are likely to be systematic differences in the consumption behavior of households with different demographic characteristics but the effects of demographic characteristics have seldom been studied within the framework of complete demand systems in section ii we propose translating as a general method for incorporating demographic variables into complete systems of demand equations this method has not previously been discussed as a general technique for bringing demographic variables into demand systems although it has been employed in several studies to improve the estimates of the les and the qes presented in section i we reestimate these two systems using translating to incorporate family size

market innovation competition an evolutionary model of industrial dynamics abstract a model is presented of the behavior of a number of competing firms producing functionally similar products each firm searches for new routines and new combinations of the routines i e technical and organizational ideas and skills associated with a particular economic context decisions of a firm related to investment modernization of production price etc are based on the firm s evaluation of the behavior of other competing firms and the expected response of the market firms search for new combinations of routines in order to minimize the unit cost of production maximize the productivity of capital and maximize the competitiveness of their products in the market results of simulation of the model concerning investigation of price setting procedures and long and short term firms objectives are presented

redistributive impact of optimal commodity taxes evidence from indian data abstract optimal commodity tax rates are computed for different objective functions and their redistributive impact is studied using indian data the results indicate that while in general one should expect a limited impact on redistribution the redistributive impact at the observed tax rates is much below the potential