individual taxpayer response to tax cuts 1982 1984 with implications for the revenue maximizing tax rate abstract this paper measures the response of taxpayers to the u s personal rate reductions from 1982 to 1984 a baseline income distribution is created to describe what level and distribution could be expected in the absence of tax changes comparison of this baseline with actual tax return data shows that at least one sixth and probably one quarter of the revenue ascribable to the rate reductions was recouped by changes in taxpayer behavior the data also show that federal income tax revenue would have been maximized at a tax rate of about 35 percent and total income tax revenue maximized at a total tax rate of about 40 percent

the impact of regulation on technical change input based regulation restricts a firm s input choices to a subset of those that characterize the production technology the averch johnson hereafter a j 1962 hypothesis states that rate of return regulation affects a firm s input demands for producing its selected output level given that firms can select the level of innovations in inputs through research and development rate regulation can also impact a firm s selection of innovations among inputs regulation s influence on the choice of innovations also impacts the rate at which technical change occurs in an industry the a j hypothesis has been examined extensively in the literature the impact of regulation on technical change has received less attention in the literature and is the focus of this paper the subject matter is of some importance in that regulation via the a j hypothesis leads to higher production costs regulation s impact on a firm s selection of innovations can magnify or dampen the rate at which technical change occurs a magnification dampening of the rate of technical change leads to lower higher production costs in addition to regulation s impact on input demands regulation s impact on the rate of technical change can lead to small or large changes in prices for consumers regulators can use the information on regulation and technical change to evaluate the effectiveness of policies aimed at enhancing technical change by how much do the policies affect production costs and how much would consumer prices change due to the policies regulators can also use the information to predict the impact deregulation would have on consumer prices both regulators and consumers can attempt to determine the amount by which consumer prices would change under deregulation smith 1974 and okuguchi 1975 examined the impact of regulation on a firm s choice of innovations they showed theoretically that regulation can alter a firm s choice of innovations

modeling economies of scale the case of us electric power companies modeling and validating the existence of technical progress within the neoclassical production function specification has been facilitated through the translog functional form however attempts to separate out the effects of technical progress and returns to scale has been limited this study develops and presents a model for testing the existence of these two separate effects using data from a sample of us electric power companies the analysis found that for these electric utilities there existed increasing returns to scale and technical progress that was energy using but capital neutral however scale effects were found to be a dominant factor in lessening the impact of declining average productivity

structural factors in the economic reforms of china eastern europe and the former soviet union reform in china and russia jeffrey sachs and wing thye woo china s experience does not show that gradual reform is superior to the shock therapy undertaken in eastern europe and the former soviet union eefsu differing performance primarily reflects different economic structures prior to reform china was a peasant agricultural society eefsu was urban and overindustrialized in both jobs in state enterprises were so heavily subsidized that workers refused to move to new industries elsewhere even when productivity in the latter was much higher in eefsu the large state sector impeded structural adjustment curtailing subsidies would have produced many losers who used their power to resist this outcome failure to curtail subsidies then cut off the potential supply of labour and other factors to new emerging firms china s state enterprises have not performed as well as the rest of the chinese economy and do not explain its success rapid growth was possible because the large agricultural sector contained vast surplus labour and did not enjoy subsidies and soft budget constraints once constraints on migration across regions and jobs were removed this labour was available to fuel expansion in new industries unlike the distributional conflict in eefsu in china reallocation of labour allowed all groups to gain in both partial liberalization also unleashed macroeconomic pressures manageable in china because of rapid growth and adequate monetary policy but explosive in much of eefsu because of deeper structural problems and gross monetary mismanagement

cost efficiency and electricity market structure a case study of oecd countries the oecd electricity sector has witnessed significant institutional restructuring over the past three decades as a consequence many power generation utilities now act as unregulated companies that technically compete to sell power on an open market this paper analyses the performance in term of cost efficiency for electricity generation in oecd power sector while accounting for the impact of electricity market structures we employ the short run cost function in which capital stock is treated as a quasi fixed factor input empirical models are developed for the cost function as a translog form and analysed using panel data of 25 countries during the period 1980 to 2009 we show that it is necessary to model latent country specific heterogeneity in addition to time varying inefficiency the estimated economies of scale are adjusted to take account of the importance of the quasi fixed capital input in determining cost behaviour and long run constant returns to scale are verified for the oecd generation sector the research findings suggest there is a significant impact of electricity market regulatory indicators on cost in particular public ownership and vertical integration are found to have significant and sizable increasing impacts on cost thereby indicating policy lessons on the desirable ways to implement structural electricity generation reforms

the impact of regulation on input substitution and operating cost we investigate the impact of rate of return regulation on the substitutability between pairs of inputs where substitutability is measured using morishima elasticities of substitution mes and on operating cost theory does not provide a qualitative characterization of the impact of regulation on input substitutability although it does provide a basis for speculation we test our speculation using a 1977 87 panel of 20 u s interstate natural gas pipelines that were subject to rate of return regulation during the period we find that regulation increased the mes of each rate base input for the non rate base input and reduced the mes between the two rate base inputs and of the nonrate base input for each rate base input we also find that the

the effects of regulation on research and development theory and evidence while other aspects of the effects of regulation on resource allocation have received considerable attention the impact of regulation on the innovative p ropensities of regulated firms has generated only limited and somewha t tenuous evidence accordingly this article investigates the effect s of regulation and firm structure on research and development r d expenditures a simple model of the behavior of a firm under a rate o f return regulation suggests that both the stringency of the allowed rate of return constraint and the inclusion or exclusion of r d in a firm s rate base will be key determinants of firm level r d expenditu res the empirical results strongly support the theoretical model copyright 1988 by the university of chicago

how retirement saving programs increase saving this paper summarizes the authors work on the effect of ira and 401 k contributions on net personal saving they consider many different nonparametric approaches to controlling for heterogeneity in individual saving behavior and conclude that the weight of the available evidence suggests that contributions to both iras and 401 k s largely represent new saving the authors devote particular attention to reconciling their results with the findings in other studies that reach different conclusions sometimes using the same databases that the authors analyze methodological limitations that undermine the reliability of results in other studies explain many of these disparities

a parametric approach to efficiency measurement using a flexible profit function although the idea of measuring productive efficiency goes back to farrell 8 the econometric estimation of it began with aigner lovell and schmidt 1 and meeusen and van den broeck 17 in aigner lovell and schmidt 1 and meeusen and van den broeck 17 and their extensions which incorporate either cost minimizing or profit maximizing behavior efficiency is measured relative to a frontier an alternative to the frontier approach that started with hopper 10 and lau and yotopoulos 15 is to measure efficiency mostly allocative without estimating any frontier in the latter approach allocative inefficiency defined as the deviations of the first order conditions of profit maximization or cost minimization is modeled through shadow virtual prices which are parametric functions of observed prices the shadow price approach is extensively used in the literature on efficiency measurement because it has an advantage over the frontier approach which requires distributional assumptions on the error terms especially in cross sectional models in empirical studies on the efficiency of regulated utilities it has been argued that due to the presence of rate of return and other regulations these firms optimize with respect to shadow prices instead of observed prices these studies often fail to consider the possibility that the firms under question may be technically inefficient as well which can affect allocation of inputs 1 this issue is important in both cost minimization and profit maximization cases this paper uses a profit maximization framework and develops a generalized profit function approach that accommodates both technical and allocative inefficiencies in the context of a panel data model the relationship between production technical inefficiency loss of output due to technical inefficiency and profit technical inefficiency profit loss due to technical inefficiency is derived for a flexible production function presently it is believed that the derivation of this relationship is only possible for the self dual production functions we show that if the profit function is translog some popular approaches used in modeling technical and allocative inefficiency are incorrect in particular we show that i models that fail to include technical inefficiency and consider only allocative inefficiency yield biased and inconsistent parameter estimates ii if technical inefficiency is neglected the measure of technical change will be biased the generalized profit function developed here is capable of distinguishing between technical change and time varying technical inefficiency such a distinction is not possible if for example one uses

parametric efficiency tests economies of scale and input demand in u s electric power generation duality theory has been applied increasingly in recent years to study the structure of production a major advantage of using duality theory is that systems of input demand equations can be derived by simple differentiation facilitating the use of flexible functional forms also use of duality theory makes it possible to choose a representation of the technology which has desirable properties for estimation such as exogeneity of the regressors however the use of a dual representation of production structure is appropriate only if the corresponding maintained hypothesis concerning economic behavior e g cost minimization or profit maximization is valid the perceived advantages of the dual approach to studying production structure have led to some applications in which the maintained hypothesis concerning economic behavior is unlikely to be appropriate for example neoclassical cost functions have been used to study the characteristics of production in regulated industries despite an extensive theoretical literature indicating that a profit maximizing regulated firm would not minimize costs subject to market prices 2 in this paper we propose a generalized cost function that retains the principal advantages of the neoclassical cost function but does not require that cost minimization subject to market prices be imposed as a maintained hypothesis in our model firms are assumed to base their production decisions on unobservable shadow prices which reflect the effects of regulation on the effective prices of inputs parametric tests for cost minimization are obtained by expressing shadow prices as functions of market prices the generalized cost function is estimated with data for regulated electric utilities the parametric restrictions corresponding to cost minimizing behavior subject to market prices are rejected implying that the use of a neoclassical cost function is not appropriate in this application 3

the impacts of the clean air act on production cost and the substitution between inputs in the electric utility industry abstract the paper examines how having to comply with phase 1 of title iv of the 1990 clean air act affected production cost and the substitution between fuel and non fuel labor capital inputs phase 1 required firms to reduce their sulfur dioxide emissions enacting procedures to reduce sulfur dioxide emissions using lower sulfur content coal or other fuel sources could lead to higher cost and impact the substitution between fuel and non fuel inputs using a 1992 2000 panel of 34 u s electric utilities empirical results indicate that the procedures electric utilities enacted to comply with phase 1 contributed to small increases in both marginal cost and total cost firms having to comply with phase 1 were more willing than firms not subject to phase 1 to substitute from fuel to non fuel labor capital inputs following an increase in the price of fuel utilities subject to phase 1 that had a fuel clause were more willing than phase 1 firms without a fuel clause to substitute from non fuel inputs to fuel when the price of the non fuel input increased

the dependence of parametric efficiency tests on measures of the price of capital and capital stock for electric utilities this study tests whether various measures of the price of capital and capital stock will influence estimates of electric utility allocative efficiency parametric shadow values are estimated for fuel and capital prices and these values are tested against the hypothesis they are equal to unity the theoretically correct jorgenson type price for capital services results in rejecting the inefficiency hypothesis while a more simplified version of this price does not reject the efficiency hypothesis the exact measure of opportunity cost of capital discounted cash flow or capital asset price does not influence the efficiency conclusions copyright 1989 by blackwell publishing ltd

on the measurement of capacity utilization capacity utilization is usually defined as the ratio of actual output to the output corresponding to 1 the minimum point on the short run average total cost curve and 2 the point of tangency between the long run average total cost and short run average total cost curves in practice however capacity utilization is often measured as the ratio of actual to the maximum potential output consistent with a given capital stock this paper demonstrates how to estimate the theoretical measures of capacity utilization and examines the correlation between three measures of capacity utilization and the mcgraw hill estimates of capacity utilization using data from a sample of u s privately owned electric utilities for 1961 83 copyright 1989 by blackwell publishing ltd

parametric analysis of cost inefficiency and the decomposition of productivity growth for regulated firms this paper examines the contributions of technical change scale economies regulation and efficiency on productivity growth in the interstate natural gas pipeline industry following bauer 1990 productivity growth for firms subject to regulation is decomposed into technical change scale economies regulation and efficiency components the data sample consists of 20 pipeline companies and covers the period 1977 to 1987 results indicate that scale economies cost inefficiency and regulation on average accounted for 64 16 and 4 of productivity growth respectively cost efficiency declined over the sample period most of which can be attributed to technical inefficiency

separability test for the electricity supply industry this paper examines the vertical integration issue of the electricity industry this industry is typically vertically integrated and heavily regulated the paper investigates the potential technological efficiency loss due to the vertical disintegration using the translog production function three separability hypotheses using the allen uzawa elasticity of substitution are tested to examine the feasibility of various degrees of disintegration of the current industry structure all three separability hypotheses are rejected and the cost of disintegration is estimated further estimates indicate that the electricity industry appears to have exhausted economies of scale unlike other deregulated industries disintegration of the electricity industry will entail technological efficiency loss

united states demand for coffee imports abstract the united states one of the world s largest coffee importers imports coffee beans from a variety of different countries these countries are aggregated into five groups representing five broadly defined types of coffee imports of the five coffees over time are examined to determine price expenditure and substitution elasticities these elasticities reflect preferences as well a technical relationships in the form of blending recipes the lower the degree of substitutability between the different types of coffee the more inelastic the demand from the united states facing groups of exporting countries the results suggest rigidities in united states imports of coffee of different types these rigidities are evidenced by substantial complementarity among the five coffee types preference patterns are very similar across a wide range of model specifications there are differences in expenditure elasticities for different types of coffee in the united states

how to reform a planned economy lessons from china the countries of eastern europe and the former soviet union have been flooded with advice from the west on how to liberalize their planned econo mies this advice is unfortunately offered in an empirical vacuum no one knows how these econo mies will react to the proposed liberalization meas ures there exists however a neglected source of information china offers a long time series of data over a decade s worth on the effects of reforms on a planned economy china s reforms were gradual but their cumulative effect has been large and they have been remarkably successful china s experiments provide some practical les sons on what kinds of reforms can work elsewhere the dominant school of thought among economists favours the big bang policy of reforming quickly and according to a comprehensive plan partial reforms in this view are useless they will be negated by the remnants of the planning system the proponents of big bang reform have been influential with poland czechoslovakia and rus sia announcing plans for a rapid transition to capi talism

nonparametric measurement of productive efficiency in the presence of regulation abstract during the late 1970s and 1980s volatility in the demand for natural gas in the united states created havoc in the industry s transmission sector managers of firms were presented with the task of improving productive efficiency in an uncertain and regulated industry we measure the relative performance of 20 pipelines using data envelopment analysis dea to produce a regulation constrained minimum cost frontier with the results we construct a fisher productivity index fpi results show that despite productive efficiency decline for most years most firms experienced improvement in technical efficiency and technical progress in most years most of the productive efficiency decline was due to scale diseconomies

tax incentives and the decision to purchase health insurance evidence from the self employed the tax reform act of 1986 introduced a new tax subsidy for health insurance purchases by the self employed we analyze the changing patterns of insurance demand before and after tax reform to generate new estimates of how the after tax price of insurance affects the discrete choice of whether to buy insurance we employ both traditional regression models and difference in difference methods that compare changes in insurance coverage across groups around tra86 the results from our most carefully controlled comparison suggest that a 1 percent increase in the cost of insurance coverage reduces the probability that a self employed single person will be insured by 1 8 percentage points

behavior of the firm under regulatory constraint a recent article by akira takayama discusses an earlier paper by harvey averch and leland l johnson on fair rate of return regulation of public utilities although takayama p 255 agrees with averch and johnson s general conclusions that a firm will tend to increase its investment with the introduction of an active constraint on its rate of return he criticizes the a j argument as being confusing ambiguous and in error takayama then attempts a clarification and presents a new formulation which leads to the a j result quoted above this comment will discuss several of takayama s criticisms in addition to showing that the so called a j effect cannot be derived from the basic assumptions made by both averch and johnson and takayama 1 we will show that the very assumptions used to prove the a j effect by defining the region of x require an assumption that the a j effect exists in the first place

profit productivity and price differential an international performance comparison of the natural gas transportation industry the objective of this paper is to evaluate the performance of natural gas transportation utilities focusing on the three key strategic performance measures of profit productivity and price differential we propose a methodology that expresses the three performance measures in a unified single equation using the edgeworth index the proposed methodology is applied to an international comparison of the performance of 28 natural gas transportation utilities operating in eight countries in which the business environments differ greatly the empirical results show the possible causes of performance differences and may shed some light on the direction of regulatory policy especially for developing countries that have relatively short histories in the natural gas industry such as korea

estimated elasticities from regulated and unregulated cost functions abstract estimates of the allen partial elasticities of substitution aes for a regulated cost function smith 1981 are compared with those obtained from an unregulated cost function the aes for capital and variable inputs are reasonably similar but those between variable inputs differ significantly

the effect of marginal tax rates on taxable income a panel study of the 1986 tax reform act this paper uses a treasury department panel of more than 4 000 taxpayers to estimate the sensitivity of taxable income to changes in tax rates on the basis of a comparison of the tax returns of the same individual taxpayers before and after the 1986 tax reform the analysis emphasizes that the response of taxable income involves much more than a change in the traditional measures of labor supply the evidence shows an elasticity of taxable income with respect to the marginal net of tax rate that is at least one and could be substantially higher the implications for recent tax rate changes are discussed

capital vintage time trends and technical change in the electric power industry beginning with tinbergen in 1942 economists have employed a time trend in cost or production functions to represent the rate at which new technology is introduced into the production unit in sufficiently flexible models of the production process the time trend may be used to obtain estimates of the rate as well as direction of technical change the use of the time trend is generally defended on pragmatic grounds as no theoretical justification exists for assuming that new technology is introduced at a steady rate that is independent of a firm s investment in r d education capital of a more recent vintage etc in recent years alternatives to the traditional time trend have been sought to represent the rate at which new technology is introduced research in this area has been concentrated in the telecommunications industry where the stock of r d or the percentage of calls completed by direct dialing or modern switching facilities have been employed as technological indices by nadiri and schankerman 32 denny et al 14 and christensen et al 7 the latter two studies indicate that explicit technological indices provide a better representation of the pace of innovation than the time trend this conclusion must remain tentative however as it is not possible to determine what is the true direction of technical change in these studies this shortcoming is overcome in a recent study by kopp and smith 24 who compare the performance of time trends and explicit technological indices in a study using pseudo data generated by process analysis models their results unambiguously support the use of technologically explicit indicators of technical change and indicate that the use of a time trend may not provide a consistent estimate of the direction of technical change this study does not however shed any light on the ability of a time trend to accurately reflect the rate of technical change the purpose of this study is to investigate the effects of alternative technological indices on the estimated rate and direction of technical change in the electric power industry the performance of a time trend is compared with that of a vintage index computed as the average age of a firm s steam generating capacity this latter index is consistent with the notion that new technology is embodied in newly constructed capital an assumption sup

the effect of tax based savings incentives on the self employed abstract the u s individual income tax allows employers to make tax deferred contributions to qualified pension plans for their employees and in the case of the self employed on their own behalf we examine the effect of these tax based savings incentives on the self employed for this purpose we use a panel of sole proprietors constructed from the statistics of income soi individual income tax files for 1985 1989 and 1993 we find that taxes have a substantial effect on both the dichotomous decision to contribute and the amount contributed to tax deferred retirement savings plan by the self employed in general our estimates suggest a tax price elasticity of contributions around 2 0 this finding is surprisingly robust to a number of alternative specifications

the effect of income taxes on household income research on the distribution of income during the 1980s has identified a trend towards increasing inequality which may be the continuation and acceleration of trends spanning several decades this paper explores to what extent behavioral responses to the tax changes during the 1980s may also explain the rising inequality the 1986 tax reform act is used as a natural experiment to explore the roles played by both taxes and a variety of nontax factors our principal finding is that both tax rates and nontax factors appear to have had significant effects on relative income growth during the late 1980s

income taxes and entrepreneurs use of labor we investigate the effect of entrepreneurs personal taxes on their use of labor analyze the tax returns of sole proprietors before and after the tax reform act of 1986 and determine how the substantial reductions in marginal tax rates affected their hiring decisions and wage bills individual income taxes exert a statistically and quantitatively significant influence on the probability of hiring workers raising the entrepreneur s tax price by 10 raises the mean probability of hiring by about 12 further taxes influence total wage payments to workers the tax price elasticity of the median wage bill is about 37

the business es of the chinese state the state industrial sector is the achilles heel of china s otherwise remarkable economic performance over the past two decades most other countries in transition from socialism have transformed soes into commercial entities through systematic market driven restructuring and privatisation to become more efficient and competitive in china a series of innovative if often administrative insitutional reforms since 1978 have begun to achieve the chinese authorities goal of separating governemtn from business but the chinese state still maintains ownership of key enterprises and government agencies carry out shareholder functions typically performed by private owners in a market economy although privatisation and restructuring of soes is occurring it mostly pertains to small and medium sized firms for the principal businesses by contrast the creation of large state enterprise groups and holding companies and experiments in other forms of state asset management have become the main form of restructuring today china s soes still account for more than one quarter of national production two thirds of total assets more than half of urban employment and almost three quarters of investment while direct budgetary subsidies have declined explicit and implicit subsidies are still making their way to prop up loss making soes through the financial system and other routes at the same time soes are still producing non marketable products resulting in a sizeable inventory overhang these inefficiencies and distortions represent a drain on the country s resources and thus present a challenge to the chinese leadership for reform this paper sheds light on these challenges by analysing the incentives and constraints on china s soe reform programme four critical aspects of the reforms are highlighted and evaluated against the backdrop of international experience clarification of property rights establishment of large group holding companies and other new organisational structures improved corporate governance incentives and implementation of international financial accounting and auditing practices the paper concludes with policy recommendations

engineering and econometric interpretations of energy capital complementarity comment in a recent paper in this review ernst berndt and david wood provide a useful clarification of gross and net complementarity pointing out that energy and capital can be gross substitutes in a production subfunction and yet net complements in the aggregate production function using this theoretical proposition they attempt to reconcile the econometric findings of energy capital complementarity with other studies finding energy capital substitutability their reconciliation rests on the finding that those studies finding energy capital substitutability considered only capital k labor l and energy e by omitting materials m one obtains only a gross elasticity the net elasticity which allows for the additional substitution between the kle aggregate and m can indicate energy capital complementarity in fact klem studies generally find energy and capital complementarity the purpose of this comment is to question whether the net and the gross elasticity distinction provides such a reconciliation among the econometric results i agree that this explanation tends to reduce the disparity between the original berndt wood elasticity estimate and griffin gregory yet three independent sources of evidence suggest that the omission of m is not a sufficient explanation and probably not even a major explanation for the disparity of findings first the difference between the gross elasticity in a kle submodel and the net elasticity in a klem model depends critically on the elasticity of substitution between m and kle let us adopt the berndt wood notation and consider their mathematical example which demonstrates the possibility of gross capital energy substitutability as in the griffin gregory study with net capital energy complementarity

efficiency estimation with heteroscedasticity in a panel data model this paper deals with the estimation of efficiency in a panel data framework a oneway error component model ecm is generalized to accommodate firm specific variances for the inefficiency component a multi step procedure is developed to estimate the cost function and predict increase in cost due to inefficiency the model is applied to examine efficiency of ten major investor owned electric utilities in texas during 1966 1985 the production technology is represented by a translog cost function that is assumed to be the same for every utility except for heterogeneous intercepts but it is allowed to shift over time due to technical change the data supports the ecm with firm specific variances and rejects the homoscedastic ecm cost inefficiency is found to vary substantially across utilities ranging from 0 to 28 technical change is found to be quite small less than 1 especially during 1971 1985

the income tax and nonwage compensation d ramatic changes in the division of labor compensation between wage and nonwage payments have occurred since world war ii voluntary employer contributions to private pension and welfare funds have risen from 1 2 of wage and salary compensation in 1947 to 8 3 in 1979 with half the increase taking place since 1969 see table 1 major changes in the composition of the fringe benefit package have also taken place during this period employer contributions to group health insurance plans have risen from 24 of total fringe benefits in 1947 to 40 o in 1979 if this growth continues group health insurance will replace pension and profit sharing plans as the largest fringe benefit expenditure by employers these trends in the compensation mix have long been noted by researchers and various factors have been offered as explanations including the favorable tax treatment of fringe benefits demographic changes such as increased life expectancy and unionization rice 1966 ture 1976 mabry 1973 freeman 1978 however most explanations have not been subjected to rigorous empirical testing and the few results that have been published are both questionable and dated for example rice 1966 estimated that changes in the tax rate structure had little influence on the relative increase in fringe benefits from world war ii to 1963 more recent studies schiller and weiss 1979 1980 have examined a specific fringe benefit the private pension plan for its impact on turnover and its role as an equalizing difference but these studies have not analyzed the determinants of the compensation mix this paper discusses the theoretical determinants of the division of labor compensation between fringe benefits and cash income and empirically estimates their importance it concentrates on the impact of taxation on the compensation mix for several reasons first the assumption that rising tax rates encourage individuals to substitute fringe benefits for cash income underlies estimates of the welfare cost of tax preferences browning 1979 second proposals to fully tax employee fringe benefits under a comprehensive9 income tax have surfaced in recent years nolan 1977 clotfelter 1979 finally current federal tax policy is calling for large tax rate reductions to increase supply incentives unlike the determinants of the compensation mix that change slowly over time such as life expectancy tax rate changes can occur rapidly through legislative action reducing tax rates might enlarge the tax base by increasing the fraction of labor income received as taxable cash wages and salaries section ii outlines the tax treatment of various forms of labor compensation and in section iii other factors thought to influence the choice between wage and nonwage compensation are discussed empirical analyses of the compensation mix are presented in section iv a brief summary and implications of the major findings for the future growth of fringe benefits follow in section v

cost functions under production uncertainty we characterize the cost functions which would be consistent with expected utility maximization when production is uncertain it is not generally possible assuming risk aversion to use only expected output as the constraint in a cost minimization problem in some leading cases cost functions consistent with expected utility maximization are particularly useful because they are devoid of risk preferences

regulation efficiency and granger causality abstract this paper examines whether financial performance granger causes productive efficiency improvements in current period financial performance provide firms with funds to initiate changes that can enhance future period efficiency and profits returns to equity and the rate base are used as measures of financial performance data envelopment analysis is used to compute regulated farrell measures of cost technical and allocative efficiency the data sample is a panel of 20 us interstate natural gas pipeline companies from 1977 to 1987 results indicate that improvements in financial performance productive efficiency did not statistically contribute to enhancing productive efficiency financial performance

a general index of technical change this paper outlines a procedure for estimating a general index of technical change within the context of a quite general production technology specifically when panel data are available for firms in an industry time specific dummies can be combined in a nonlinear estimation procedure to yield a general index of technical change that may be both nonneutral and scale augmenting this approach offers numerous advantages over the traditional time trend representation of technical change for example the general index can serve as the basis for analysis of the determinants of technical change results for a sample of 30 electric utilities over the period 1951 78 show that the productivity decline of the 1970s can be attributed primarily to sulphur oxide restrictions and secularly declining capacity utilization due to rapidly increasing peak load demands

the sensitivity of productivity growth measures to alternative structural and behavioral assumptions an application to electric utilities 1951 1984 this article examines the sensitivity of three alternative multifactor productivity growth estimates for the electric utility industry during the 1951 1984 period the results indicate that multifactor productivity growth estimates are quite sensitive to the relaxation of various structural and behavioral assumptions first a benchmark measure is constructed along the lines suggested by solow 1957 this residual approach produces estimates that suggest a substantial decline in firm level productivity growth after the mid 1960s prior to obtaining the second and third estimates empirical tests of the structural and behavioral assumptions underlying a firm s operation are conducted first the structural assumption of constant returns to scale is rejected and the resulting long run scale adjusted multifactor productivity growth estimates are found to be consistently less than the residual estimates second the behavioral assumption of long run equilibrium is rejected comparing the long run scale ad

separability and capital aggregation in sectoral models of us production separability plays a fundamental role in applied studies of production inasmuch as it provides for consistent aggregation and allows multi stage estimation of models with many inputs this paper examines whether two types of capital structures and equipment are weakly separable from labour and energy and materials in sectoral models of us production and provides an assessment of the effects of maintaining capital separability the study focuses on the elasticity of substitution as a measure of input association and associated standard errors and confidence intervals based on bootstrapping elasticity estimates and tests indicate that capital separability is generally inconsistent with data representing sectoral us production elasticity sign however appears robust to capital aggregation and performs especially well as an indicator of input association

systematic effects of capital service price definition on perceptions of input substitution earlier attempts at reconciling disparate substitution elasticity estimates examined differences in separability hypotheses data bases and estimation techniques as well as methods employed to construct capital service prices although these studies showed that differences in elasticity estimates between two or three studies may be attributable to the aforementioned features of the econometric models they have been unable to demonstrate this link statistically and establish the existence of systematic relationships between features of the econometric models and the perception of production technologies generated by those models using sectoral data covering the entire production side of the u s economy we estimate 34 production models for alternative definitions of the capital service price we employ substitution elasticities calculated from these models as dependent variables in the statistical search for systematic relationships between features of the econometric models and perceptions of the sec

taxes fringe benefits and faculty the growth of employee benefits in academe has closely paralleled their economy wide growth this study estimates a complete system describing the demand for benefits and wages using panel data on 1477 institutions of higher learning the demand for benefits is very responsive to changes in real income and the tax price of benefits these conclusions are robust with respect to varying definitions of the tax price treating it as endogenous and accounting for unmeasured individual effects on demand simulations suggest that the tax reform act of 1986 sharply reduced the demand for benefits extrapolating the impact to the entire economy the annual flow of compensation shifted away from benefits by at least 15 billion copyright 1992 by mit press

shephard s lemma and rate of return regulation abstract by counter example this paper shows that in general shephard s lemma cannot be used for the usual formulation of the rate of return regulated cost function a solution to the problem is supplied

marginal tax rates and tax favoured pension savings of the self employed evidence from sweden in recent years the study of how individuals respond to policies that aim at promoting pension savings has emerged as a vital area of economic research this paper adds to this body of literature by estimating the tax price elasticity of contributions to tax favoured pension savings accounts on a population of self employed individuals i exploit a unique total database over the swedish population that covers the years 19992005 using instrumental variables i obtain a tax price elasticity estimate of 0 51 and an income elasticity estimate of 0 13 whereas ordinary least squares ols produces estimates that conflict with consumer theory

productivity scale economies and technical change reconsidered recently several writers have presented theoretical arguments and empirical evidence that suggests that an electric utility s long run productivity growth rate can be decomposed into a variety of factors for example gollop and roberts 12 decompose a utility s total factor productivity growth rate into three distinct components 1 technical change 2 a scale effect and 3 an environmental regulatory factor results for the 1970s indicate that declining rates of technical change and output growth coupled with increased regulatory intensity lead to a noticeable decline in the firm s long run productivity growth rate similarly nelson and wohar 15 examine the impact of technical change scale economies and rate of return regulation on an electric utility s longrun productivity growth rate evidence suggests that the technical change and scale components behaved in a manner similar to the gollop and roberts 12 findings the evidence concerning the impact of the regulatory factor was less convincing due to the difficulty in obtaining reliable estimates of the regulatory constraint parameter a common characteristic of this literature is that the firms under investigation are assumed to employ all inputs at their long run cost minimizing levels as such the productivity decomposition model is primarily concerned with distinguishing between shifts in the production function versus movements along the production structure according to caves christensen and swanson 5 a violation of the long run equilibrium assumption adds an equally important factor to the decomposition of productivity growth specifically the movement toward or away from longrun equilibrium as a consequence researchers must further distinguish between long run and short run productivity growth estimates 2 in a recent article 9 daly and rao illustrate theoretically and empirically using a long run cost function and data pertaining to ontario hydro that a firm s long run productivity growth rate can be decomposed into 1 technical change 2 non constant returns to scale and 3 a capacity

regulation capital vintage and technical change in the electric utility industry this paper presents estimates of the rate of technical change in the electric power industry over the period 1951 78 the estimated model directly incorporates the effects of rate of return regulation and uses both a time trend and a vintage index to represent disembodied and embodied technical change respectively the results indicate that disembodied technical change was the primary source of cost reduction during 1951 70 and that tighter regulation as represented by a one point reduction in the rate of return would have reduced the rate of technical change by an average of 1 2 during 1951 78 34 references 18 footnotes 3 tables