measuring the spillovers from technical advance mainframe computers in financial services measuring the social gains from recent technological advances is difficult because there are no output indexes from some important adopters measurement methods that infer the willingness to pay of theadopting industries from the derived demand curve for a new technologyovercome this difficulty the derived demand for high speed computersfor use in banks finance and insurance is shown to imply a very largesocial gain to computerization that is not captured by computer manufacturers copyright 1986 by american economic association

the use of parametric and non parametric frontier methods to measure the productive efficiency in the industrial sector a comparative study abstract parametric frontier models and non parametric methods have monopolised the recent literature on productive efficiency measurement empirical applications have usually dealt with either one or the other group of techniques this paper applies a range of both types of approaches to an industrial organisation setup the joint use can improve the accuracy of both although some methodological difficulties can arise the robustness of different methods in ranking productive units allows us to make a comparative analysis of them empirical results concern productive and market demand structure returns to scale and productive inefficiency sources the techniques are illustrated using data from the us electric power industry

the adjustment cost model of the firm duality and productive efficiency we present the theoretical foundation for an adjustment cost technology that supports the intertemporal production decision making behavior using the directional distance function dynamic input efficiency measures are developed that can separate out the impact of variable and dynamic factors inefficiency levels an approach to implement this theory in a nonparametric fashion is developed and applied to an unbalanced panel of dutch glasshouse firms the application finds overuse of all variable inputs and overcapitalization of installations the overall dynamic efficiency gain of 16 remains possible with allocative inefficiencies indicating underinvestment in structures and installations a comparison of static and dynamic efficiency measures finds that the static overall cost inefficiency is overestimated with technical inefficiency being overstated and allocative inefficiency being understated

information technology and productivity evidence from country level data this paper studies a key driver of the demand for the products and services of the global it industry returns from it investments we estimate an intercountry production function relating it and non it inputs to gdp output on panel data from 36 countries over the 1985 1993 period we find significant differences between developed and developing countries with respect to their structure of returns from capital investments for the developed countries in the sample returns from it capital investments are estimated to be positive and significant while returns from non it capital investments are not commensurate with relative factor shares the situation is reversed for the developing countries subsample where returns from non it capital are quite substantial but those from it capital investments are not statistically significant we estimate output growth contributions of it and non it capital and discuss the contrasting policy implications for capital investment by developed and developing economies

party system institutionalization and government formation in new democracies party systems provide the essential structure of the coalition bargaining environment stability in party systems ensures the presence of regularities that can be observed in government formation but most empirical research focuses on established democracies in new democracies party systems are less institutionalized which means that interactions between parties can be unpredictable and has significant implications for coalition formation this article presents the first study of coalition formation in new democracies that employs an empirical design comparable to that of the leading research on western europe the author uses a new data set of potential coalitions in central and eastern europe to examine three explanations for government formation that arise when party systems are weakly institutionalized the results show first that incumbency is a disadvantage for governments in new democracies when formation occurs postelection this disadvantage is due to high levels of electoral volatility caused by policy failure and clientelistic practices incumbents are advantaged when formation takes place midterm as weak party system institutionalization leads to an inchoate pattern of interaction between opposition parties which therefore fail to provide a viable alternative second the presence of former dominant parties influences government formation by stifling the development of programmatic competition instead programmatic competition is subjugated to contestation based on historical enmities and third established parties collude to exclude new parties from coalition formation a possible indicator that a party system is becoming more institutionalized the article provides new insights into the importance of routinized and stable political practices and institutions

analysis of lumber and pulpwood production in a partial adjustment model with dynamic and variable speeds of adjustment this article proposes a partial adjustment model in which the speed of adjustment is a linear function of policy and economic variables rather than fixed the model is applied to analyze the behavior of lumber and pulpwood production since the model is overparameterized and intrinsically nonlinear the task of estimation is done by the nonlinear least squares method using quarterly data covering the period from 1961 through 1983 both the adjustment speeds of lumber and pulpwood production are found to vary inversely with the discrepancy between the actual and the expected interest rate the adjustment speed of lumber production is also found to shift positively with the difference between the actual and the expected government expenditure in addition the results show that the adjustment speed of lumber production suffers from a longterm declining trend whereas the adjustment speed of pulpwood production exhibits a long term upward sweep and that desired outputs of lumber and pulpwood respond negati

forecasting foreign exchange rates with an intrinsically nonlinear dynamic speed of adjustment model forecasting foreign exchange rates is an important but difficult process therefore it is important to use a superior forecasting model the paper takes up this criterion and proposes to describe and forecast foreign exchange rates by developing an intrinsically nonlinear model with variable and dynamic speeds of adjustment it is found that the speed of adjusting the random or expected to the equilibrium rate is very slow implying that fiscal policy statistically insignificat and monetary policy statistically significant may be ineffective to induce changes in the adjustment speed we also find that the nonlinear dynamic model improves forecasting performance implying that nonlinearities in the sense of functional forms are exploitable for improved point forecasting of foreign exchange rates

efficiency analysis for exogenously fixed inputs and outputs we evaluate by means of mathematical programming formulations the relative technical and scale efficiencies of decision making units dmus when some of the inputs or outputs are exogenously fixed and beyond the discretionary control of dmu managers this approach further develops the work on efficiency evaluation and on estimation of efficient production frontiers known as data envelopment analysis dea we also employ the model to provide efficient input and output targets for dmu managers in a way that specifically accounts for the fixed nature of some of the inputs or outputs we illustrate the approach using real data for a network of fast food restaurants

is there a leviathan in your neighborhood this paper measures effects of decentralization in local government hierarchies on local public sector size this sector shrinks if decentralization encourages competition among governments it expands if decentralization sacrifices scale economies in a sample of 3 022 counties larger county governments reduce competition and increase aggregate local public sector size relative to aggregate county income more cities and towns increase competition and reduce its size more special and school districts sacrifice scale economies and increase it two recent articles have attempted to identify the effects of decentralization in state and local government on the size of the state and local public sector wallace oates 1985 finds no important effects michael nelson 1987 finds modest evidence that increased competition among government units reduces the size of the public sector this article demonstrates that the effects of decentralization are important and complex decentralization which encourages competition reduces the size of the local public sector decentralization which discourages scale economies increases it

information technology effects on firm performance as measured by tobin s q despite increasing anecdotal evidence that information technology it assets contribute to firm performance and future growth potential of firms the empirical results relating it investments to firm performance measures have been equivocal however the bulk of the studies have relied exclusively on accounting based measures of firm performance which largely tend to ignore it s contribution to performance dimensions such as strategic flexibility and intangible value in this paper we use tobin s q a financial market based measure of firm performance and examine the association between it investments and firm q values after controlling for a variety of industry factors and firm specific variables the results based on data from 1988 1993 indicate that in all of the five years the inclusion of the it expenditure variable in the model increased the variance explained in q significantly the results also showed that for all five years it investments had a significantly positive association with tobin s q value our results are consistent with the notion that it contributes to a firm s future performance potential which a forward looking measure such as the q is better able to capture

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

a model of endogenous government formation political parties bargain over the allocation of cabinet portfolios when forming coalition governments noncooperative theories of legislative bargaining typically predict that the formateur enjoys a disproportionate share of government ministry positions however empirical evidence indicates that parties receive shares of portfolios proportional to their share of legislative seats that a government party contributes to the government coalition in support of gamson s law of portfolio allocation this article examines government formation as a process in which both the government coalition and the formateur are determined endogenously in equilibrium if parties have similar preferences over cabinet portfolios the share of seats they are allocated is proportional to the parties sizes

bargaining in legislatures bargaining in legislatures is conducted according to formal rules specifying who may make proposals and how they will be decided legislative outcomes depend on those rules and on the structure of the legislature although the social choice literature provides theories about voting equilibria it does not endogenize the formation of the agenda on which the voting is based and rarely takes into account the institutional structure found in legislatures in our theory members of the legislature act noncooperatively in choosing strategies to serve their own districts explicitly taking into account the strategies members adopt in response to the sequential nature of proposal making and voting the model permits the characterization of a legislative equilibrium reflecting the structure of the legislature and also allows consideration of the choice of elements of that structure in a context in which the standard institution free model of social choice theory yields no equilibrium

elections coalitions and legislative outcomes predictions of electoral behavior in a multiparty setting should be a function of the voters beliefs about how parties will perform following an election similarly party behavior in a legislature should be a function of electoral promises and rewards we develop a multistage game theoretic model of three party competition under proportional representation the final policy outcome of the game is generated by a noncooperative bargaining game between the parties in the elected legislature this game is essentially defined by the vote shares each party receives in the general election and the parties electoral policy positions at the electoral stage parties and voters are strategic in that they take account of the legislative implications of any electoral outcome we solve for equilibrium electoral positions by the parties and final policy outcomes

the conditional impact of incumbency on government formation previous research on coalition politics has found an incumbency advantage in government formation but it has provided no clear explanation as to why this advantage exists we classify existing theories as either preference based or institutions based explanations for why incumbent coalitions might be likely to form again and we integrate these explanations into a coherent theoretical argument we also claim that it is possible to some extent to distinguish these explanations empirically by taking into account the historical context of coalition bargaining using a comprehensive new data set on coalition bargaining in europe we show that coalitions in general are more likely to form if the parties comprising them have worked together in the recent past and that incumbent coalitions are more likely to re form if partners have not experienced a severe public conflict while in office together or suffered a recent setback at the polls the incumbency advantage disappears completely if partners have become mired in conflict or have lost legislative seats even after accounting for the impact of seat share on coalition size moreover in certain circumstances institutional rules that grant incumbents an advantage in coalition bargaining greatly enhance their ability to remain in office

a partial adjustment approach to evaluating and measuring the business value of information technology abstract in this paper we develop a partial adjustment approach based on the theory of partial adjustment to assess the value of information technology we also propose a performance measure derived from the approach the constrained structural or implicit and unconstrained non structural or explicit models derived from the approach are fitted into a set of panel data at the country level covering the period from 1993 to 2006 for a sample of 12 countries including the g7 nations and are estimated by the seemingly unrelated regression estimation the results produced by the models are robust with respect to the choice of the production function representing the true desired or maximum output and challenge the widely held belief that the productivity paradox has disappeared and the view that the productivity paradox exists in developing economies only the proposed approach compares favorably with the time varying stochastic production frontier approach since it is easier and simpler to apply but unlike the non parametric data envelopment analysis approach it is parametric

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

paradox lost firm level evidence on the returns to information systems spending the productivity paradox of information systems is is that despite enormous improvements in the underlying technology the benefits of is spending have not been found in aggregate output statistics one explanation is that is spending may lead to increases in product quality or variety which tend to be overlooked in the aggregate statistics even if they increase output at the firm level furthermore the restructuring and cost cutting that are often necessary to realize the potential benefits of is have only recently been undertaken in many firms our study uses new firm level data on several components of is spending for 1987 1991 the dataset includes 367 large firms which generated approximately 1 8 trillion dollars in output in 1991 we supplemented the is data with data on other inputs output and price deflators from other sources as a result we could assess several econometric models of the contribution of is to firm level productivity our results indicate that is spending has made a substantial and statistically significant contribution to firm output we find that the gross marginal product mp for computer capital averaged 81 for the firms in our sample we find that the mp for computer capital is at least as large as the marginal product of other types of capital investment and that dollar for dollar is labor spending generates at least as much output as spending on non is labor and expenses because the models we applied were similar to those that have been previously used to assess the contribution of is and other factors of production we attribute the different results to the fact that our data set is more current and larger than others explored we conclude that the productivity paradox disappeared by 1991 at least in our sample of firms

bargaining delays in the government formation process in parliamentary democracies the transfer of power from one government to the next is sometimes characterized by long periods of negotiations in which party leaders bargain over the composition and policy objectives of a new cabinet although these delays can have substantial political and economic consequences surprisingly little is known about their determinants moreover the few studies that exist reach contradictory conclusions in this article the author examines how factors relating to uncertainty and bargaining complexity influence the duration of the government formation process in 16 west european countries from 1944 to 1998 in line with the article s theoretical expectations the author finds that factors increasing uncertainty over the type of cabinet that is acceptable always lead to delays in forming governments but that factors increasing bargaining complexity such as the number of parties and ideological polarization in the legislature only do so when there is sufficient uncertainty

vertical versus horizontal tax externalities an empirical test abstract we study taxation externalities in federations of benevolent governments where different hierarchical government levels tax the same base one can observe two types of externalities a horizontal externality working among governments of the same level and leading to tax rates that are too low compared to the social optimum and a vertical externality working between different levels of government and leading to suboptimally high tax rates building on the model of keen and kotsogiannis keen michael j kotsogiannis christos 2002 does federalism lead to excessively high taxes american economic review 92 1 363 370 we derive a discriminating hypothesis to distinguish vertical and horizontal tax externalities based on measurable variables this test is applied to a panel data set on local taxes in a sample of swiss municipalities that feature direct democratic fiscal decision making so as to maximize the correspondence with the benevolent governments of the theory we find that vertical externalities dominate they are thus an observed empirical phenomenon as well as a notable extension to the theory of tax competition

the power to tax analytical foundations of a fiscal constitution preface 1 taxation in constitutional perspective 2 natural government a model of leviathan 3 constraints on base and rate structure 4 the taxation of commodities 5 taxation through time income taxes capital taxes and public debt 6 money creation and taxation 7 the disposition of public revenues 8 the domain of politics 9 open economy federalism and taxing authority 10 toward authentic tax reform prospects and prescriptions epilogue notes selected bibliography index

pigou tiebout property taxation and the underprovision of local public goods abstract pigou s proposition that the use of distorting taxes rather than neutral head taxes reduces public service levels is examined in this paper a simple model with a national system of competing local governments is utilized to demonstrate that the use of a distorting property tax on mobile capital decreases the level of residential public services the case where public services are an intermediate producer good is also considered

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

demand competition and policy compromise in legislative bargaining i propose a new majoritarian bargaining model in which more than one implicit proposal can be on the table at the same time institutional differences from system to system affect the order of play the equilibrium majorities and the policy outcome the ex post distribution of payoffs within a winning coalition is however invariant to fundamental institutional differences and it is always proportional to the distribution of relative ex ante bargaining power the bargaining process is modeled as a sequential demand game in which players are called to propose a policy and to specify their desired share of the private benefits related to being in office the order of play is endogenous and the distribution of payoffs within an equilibrium majority usually does not depend on who is the proposal maker the role of the head of state and the advantages to center parties are also studied

a dynamic efficiency model using data envelopment analysis abstract changes in productivity due to technological progress or regress are incorporated in models of data envelopment analysis dea in two ways either through a network technology or in terms of a capacity variable or capital input embodying technical progress the second way is analyzed here in terms of time varying capital inputs due to the changes in input prices over time this provides an optimal control theoretic view of the time path of capital inputs which minimizes a discounted sum of total input costs for each dmu the cost of risk aversion and the adjustment cost of input price fluctuations may then be minimized in an extended dea model framework these extensions of the dea model are analyzed here and illustrated by an empirical application to international airlines data

assessing the business values of information technology and e commerce independently and jointly abstract the purpose of this paper is to assess the business values of information technology it and electronic commerce ec independently and simultaneously as measured by productive efficiency in order to provide new insights into it and ec investments and consequently lead to better decisions on it and ec investments the paper analyzes a panel data set at the country level based on the theory of production and its companions called the time varying stochastic production frontier spf approaches with the one equation and two equation models estimated by a two step nonlinear maximum likelihood method the performance metric called productive efficiency is built in the research approaches the empirical evidence strongly suggests that the presence of ec may strengthen or weaken it value and vice versa which provide a good explanation for the disappearance or existence of the so called productivity paradox and that the paradox may exist in a country regardless of whether it is a developed or a developing country inconsistent with conventional wisdom claiming that the paradox exists only in developing countries the findings imply that it is imperative to carefully assess the values of it and ec and as such prudent rather than blind it and ec investing decisions are made and that the values of it and ec must be evaluated jointly rather than separately the findings add significant contributions to the literature and serve as a catalytic agent in stimulating further comparative research in these important areas linking it investments and ec developments when their business values are the major concern

the curvilinear relationships between structural embeddedness and productive efficiency an exploratory study abstract existing network studies pay much attention to the benefits of structural embeddedness however uzzi 1996 points out the marginal benefits of structural embeddedness may follow a pattern of diminishing returns using major customer disclosure data from compustat this study investigates the curvilinear relationships between multiple aspects of structural embeddedness and productive efficiency applying both wang and ho 2010 and chen and lin 2009 stochastic frontier models we confirm the diminishing returns of eigenvector and betweenness centralities with a partial support for interconnectedness implications from our findings can help decision makers better understand the effects of structural embeddedness and help devise network structural change strategies for productive efficiency

making the first move a two stage analysis of the role of formateurs in parliamentary government formation a standard conclusion of theorists who model bargaining as a non cooperative game is that the party designated to make the first move the formateur party will determine the bargaining outcome most empirical studies of parliamentary coalition formation have paid surprisingly little attention to the formation process in this paper we model government formation as a two stage unordered discrete choice problem that better reflects this process the first step involves the selection of a formateur party and the second involves the choice of partners by the predicted formateur we evaluate several hypotheses for the two stages using a data set of all cabinets formed in the western european countries from 1970 to 2006 in our analyses of formateur selection we find that party size is clearly the dominant feature in the second stage we show that when predicting government composition it is fruitful to add information drawn from a first stage analysis

who wins determining the party of the prime minister the prime ministership is the preeminent political post in parliamentary democracies yet few studies examine pm party choice perhaps under the assumption that the choice is a simple function of party size in this article we argue that key strategic actors and the context in which government negotiations take place can play a critical role in pm party choice we test our hypotheses using a mixed logit with random coefficients on an original data set comprising pm selection opportunities in 28 european countries our methodological approach allows us to incorporate qualitative concerns about heterogeneity and causal complexity into our analysis contrary to conventional wisdom we find that the largest party is often disadvantaged when it comes to pm party choice that some presidents play an influential role in choosing the pm and that the value of being the incumbent depends on one s performance in office and how the previous government ended

analyzing the relationships between information technology inputs substitution and national characteristics based on ces stochastic frontier production models abstract this research examines four interrelated issues at the country level the value of information technology it inputs substitution and complement the complementarity phenomenon created by it and national characteristics and the productivity paradox jointly and critically from a global perspective using the so called productive efficiency as the performance measure to that end we develop the three factor constant elasticity of substitution ces stochastic production frontier model and apply it to a set of panel data from 15 countries over the period 1993 2003 along with the traditional two factor ces models within the one and two equation frameworks in the two equation setting six national characteristics are selected as the contributing factors of the productive efficiency the findings include i the value of it as measured by the productive efficiency is duly recognized ii the productivity paradox is found to be absent from the production process in a majority of developed and developing countries considered rejecting the existing argument that the paradox exists only in developing economies but does not exist in developed countries however the developed countries have used it capital in their production systems more productively efficiently than the developing nations iii traditional capital non it capital traditional labor and it capital are not pairwise substitutable contrary to the notion that they are pairwise substitutable at the firm level iv constant returns to scale as commonly assumed are not supported by the data v different national characteristics affect a country s output represented by gross domestic product or gdp and its productive efficiency differently and vi the complementarity phenomenon is observed in most of the countries developed and developing under study

constraints on cabinet formation in parliamentary democracies coalition theory typically treats political parties involved in government formation in parliamentary democracies as if they were unconstrained players in an institution free world yet actual coalition options are often severely constrained by institutional arrangements and prior commitments we develop a systematic account of different constraints on government formation and examine their frequency across 10 parliamentary democracies hypothetical and empirical examples demonstrate how a small number of constraints can dramatically reduce the range of coalition options and redistribute bargaining power among political parties more adequate coalition theories need to recognize the effects of such constraints and to build on the theoretical lessons of the neoinstitutionalist approach to legislative behavior

the efficiency of conventional fuel power plants in south korea a comparison of parametric and non parametric approaches abstract the efficiencies of the 64 conventional fuel power plants operating in south korea were determined by data envelopment analysis dea approaches as well as by a stochastic frontier method the banker charnes and cooper bcc dea efficiencies were introduced into an econometric estimate of a standard production function model leading to a corrected factors version of the model with significant improvement of the statistical explanation of our data a statistical analysis of the dea efficiencies was carried out and these were compared to efficiencies revealed by a stochastic frontier method