the incidence of personal income taxation evidence from the tax reform act of 1986 abstract this paper studies the short run incidence of personal income taxation in the us by examining how the wage structure shifted after the tax reform act of 1986 i calculate the marginal tax rate for the median worker of each occupation during the 1980s to determine the professions whose workers were most affected by the tax change when controlling for trends over time in the wage structure by occupation i find that individuals in occupations that experienced large decreases in their median marginal tax rates received lower pre tax wages after 1986 as the number of workers and the hours worked in those professions increased the results suggest that consideration of the wage effects of tax reforms is important when using these reforms to identify behavioral parameters and evaluating their distributional consequences

the rise and fall of social problems a public arenas model this paper develops a model of the process through which social problems rise and fall treating public attention as a scarce resource the model emphasizes competition and selection in the media and other arenas of public discourse linkages among public arenas produce feedback that drives the growth of social problems growth is constrained by the finite carrying capacities of public arenas by competition and by the need for sustained drama the tension between the constraints and forces for growth produces successive waves of problem definitions as problems and those who promote them compete to enter and to remain on the public agenda suggestions for empirical tests of the model are specified

transfer based decentralisation economic growth and spatial inequality evidence from china s 2002 2003 tax sharing reform china has adopted a transfer based fiscal decentralisation scheme since the mid 1990s in the 1994 tax sharing reform the central government significantly raised its share of government revenue vi

a new method of estimating risk aversion i show existing evidence on labor supply behavior places an upper bound on risk aversion in the expected utility model i derive a formula for the coefficient of relative risk aversion in terms of the ratio of the income elasticity of labor supply to wage elasticity and degree of complementarity between consumption and labor i bound the degree of complementarity using data on consumption choices when labor supply varies across states using labor supply elasticity estimates i find a mean estimate of 1 then show generating 2 requires that wage increases cause sharper labor supply reductions jel d81 j22

positive and normative judgments implicit in u s tax policy and the costs of unequal growth and recessions calculating the welfare implications of changes to economic policy or shocks requires economists to decide on a normative criterion one approach is to elicit the relevant moral criteria from real world policy choices converting a normative decision into a positive inference as in the recent surge of inverse optimum research we find that capitalizing on the potential of this approach is not as straightforward as we might hope we perform the inverse optimum inference on u s tax policy from 1979 through 2010 and argue that the results either undermine the normative relevance of the approach or challenge conventional assumptions upon which economists routinely rely when performing welfare evaluations

strategy research governance and competence perspectives business strategy is a complex subject and is usefully examined from several perspectives this paper applies the lenses of governance and competence to the study of strategy both the governance and the competence perspectives have had the benefit of distinguished antecedents they have also had to deal with tautological reputations i begin with the governance perspective with emphasis on the six key moves through which it has been operationalized i then examine the competence perspective in these same six respects governance challenges the competence perspective to apply itself more assiduously to operationalization including the need to choose and give definition to one or more units of analysis of which the routine is a promising candidate the research challenges posed by competence to which governance can and should respond include dynamic transaction costs learning and the need to push beyond generic governance to address strategy issues faced by particular firms with their distinctive strengths and disabilities a lively research future for these two perspectives individually and in combination is projected copyright 1999 john wiley sons ltd business strategy is an expansive enterprise not only do all of the functional areas in the business school relate but strategy is by nature interdisciplinary all of the social sciences especially economics and organization theory plus contract law are implicated indeed in the high technology arena where some of the most difficult strategy issues reside engineering and the law on intellectual property rights also have a bearing of the various approaches to the study of strategy this paper focuses on the governance and competence perspectives both perspectives combine economic reasoning with organization theory as between these two the governance

can state taxes redistribute income abstract the evidence presented in this paper supports the basic theoretical presumption that state and local governments cannot redistribute income since individuals can avoid unfavorable taxes by migrating to jurisdictions that offer more favorable tax conditions a relatively unfavorable tax will cause gross wages to adjust until the resulting net wage is equal to that available elsewhere the current empirical findings go beyond confirming this long run tendency and show that gross wages adjust rapidly to the changing tax environment thus states cannot redistribute income for a period of even a few years the adjustment of gross wages to tax rates implies that a more progressive tax system raises the cost to firms of hiring more highly skilled employees and reduces the cost of lower skilled labor a more progressive tax thus induces firms to hire fewer high skilled employees and to hire more low skilled employees since state taxes cannot alter net wages there can be no trade off at the state level between distribution goals and economic efficiency shifts in state tax progressivity by altering the structure of employment in the state and distorting the mix of labor inputs used by firms in the state create deadweight efficiency losses without achieving any net redistribution

labor supply deadweight loss and tax reform act of 1986 a nonparametric evaluation using panel data abstract tax reform act of 1986 tra 1986 has provided an invaluable source of variation in tax rates to study the effects of tax reforms on labor supply in the us most existing studies exploiting variation generated by tra 1986 have used cross sectional variation in tax rates or assumed a linear labor supply function or have not couched their analysis in a nonlinear budget set framework this paper uses the drastic variation in the budget set induced by tra 1986 as a source of identification and combines two novel approaches to estimate behavioral effects of tax reforms i first use nonparametric estimation methods with nonlinear budget sets blomquist soren newey w 2002 nonparametric estimation with nonlinear budget sets econometrica 70 6 2455 2480 to estimate a labor supply function using waves of psid just before and after tra 1986 nonparametric method developed in hausman and newey hausman j whitney newey 1995 nonparametric measurement of exact consumer s surplus and deadweight loss econometrica 63 1145 76 is then applied to estimate the deadweight loss from tra 1986 the nonparametric estimate of the compensated wage elasticity is 0 22 i find that tra 1986 had a small but positive effect on labor supply of men of about 2 at the sample mean tra 1986 was associated with robust reduction in deadweight loss from the pre tra 1986 level and this reduction is positively correlated with income and wages

the effect of income taxation on labor supply in the united states the effect of income taxation on the labor supply of prime age married men and women in the united states is examined using econometric methods similar to those used in the influential work of jerry hausman male labor supply is found to be relatively invariant to the net wage and virtual income in all specifications estimated the estimated impact of taxation on the labor supply of married women depends critically on the method used to estimate the labor supply function estimated net wage and virtual income elasticities are considerably larger when data on nonparticipants are included than when the estimation is conducted conditional on hours being greater than zero

nature of transfers income tax function and empirical estimation of elasticity of taxable income for brazil abstractthis article aims to estimate the elasticity of taxable income eti taking into account the nature of transfers and their use as a redistribution package involving cash and in kind transfers to households in brazil our contributions are twofold first we provide a simple model with balanced budget government that reveals the role played by cash and in kind transfers on the labour supply and income tax revenues thereof next in order to estimate eti in the presence of cash and in kind transfers brazilian population surveys pesquisa nacional por amostra de domicilios pnad are used to explore a limited tax reform that was implemented between 1997 and 1998 this reform only affected the higher income tax bracket our findings suggest that in kind cash transfers are positively negatively associated with reported taxable income and precise estimation of eti requires estimates of both types of transfers last we estimate the eti for brazil in the range from 0 4 to 1 3 not different fro

assessing empirical approaches for analyzing taxes and labor supply recent surveys on the labor supply responses of men document a divergence in the estimates of substitution and income effects obtained using various estimation approaches generally studies accounting for nonlinear tax schedules in a static setting via a piecewise linear approach produce estimates that typically imply higher substitution and lower income responses than are suggested by empirical work applying other approaches this paper demonstrates that maximum likelihood estimation of a consumer choice problem with nonlinear budget sets implicitly relies on the satisfaction of inequality constraints that translate into behaviorally meaningful restrictions these constraints arise not as a consequence of economic theory but instead as a requirement to create a properly defined statistical model in the analysis of piecewise linear budget sets the implicit constraints required by maximum likelihood in estimation amount to imposition of slutsky conditions at all wage income combinations associated with kink points in the analysis of differentiable budget sets the tacit constraints invoked by maximum likelihood also involve inequality restrictions on slutsky terms the empirical work presented in this study supports the contention that these implicit constraints play a major role in explaining the discrepancies in estimates found in the literature on men s labor supply

bounds on elasticities with optimization frictions a synthesis of micro and macro evidence on labor supply how can price elasticities be identified when agents face optimization frictions such as adjustment costs or inattention i derive bounds on structural price elasticities that are a function of the observed effect of a price change on demand the size of the price change and the degree of frictions the degree of frictions is measured by the utility losses agents tolerate to deviate from the frictionless optimum the bounds imply that frictions affect intensive margin elasticities much more than extensive margin elasticities i apply these bounds to the literature on labor supply the utility costs of ignoring the tax changes used to identify intensive margin labor supply elasticities are typically less than 1 of earnings as a result small frictions can explain the differences between micro and macro elasticities extensive and intensive margin elasticities and other disparate findings pooling estimates from existing studies i estimate a hicksian labor supply elasticity of 0 33 on the intensive margin and 0 25 on the extensive margin after accounting for frictions

structural reform of social security governments around the world have enacted or are currently considering fundamental structural reforms of their social security pension programs the key feature in these reforms is a shift from a pure pay as you go tax financed system in which taxes on current workers are primarily distributed to current retirees to a mixed system that combines pay as you go benefits with investment based personal retirement accounts this paper discusses how such a mixed system could work in practice and how the transition to such a change could be achieved it then analyzes the economic gains that would result from shifting to a mixed system i turn next to the three problems that critics raise about any investment based plan administrative costs risk and income distribution finally i comment on some of the ad hoc proposals for dealing with the financial problem of social security without shifting to an investment based system

labor income responds differently to income tax and payroll tax reforms we estimate the responses of gross labor income with respect to marginal and average net of tax rates in france over the period 2003 2006 we exploit a series of reforms to the income tax and payroll tax schedules affecting individuals who earn less than twice the minimum wage our estimate for the elasticity of gross labor income with respect to the marginal net of income tax rate is around 0 2 while we find no response to the marginal net of payroll tax rate the elasticity with respect to the average net of tax rate is not significant for the income tax schedule while it is close to 1 for the payroll tax schedule a plausible explanation is the existence of significant labor supply responses to the income tax schedule combined with sticky posted wages i e the gross labor income minus payroll taxes divided by hours worked finally the effect of the net of income tax rate seems to be driven by participation decisions in particular those of married women

marginal tax rates and income new time series evidence this paper estimates the dynamic effects of marginal tax rate changes on income reported on tax returns in the united states over the 1950 2010 period after isolating exogenous variation in average marginal tax rates in structural vector autoregressions using a narrative identification approach i find large positive effects of tax cuts in the top 1 of the income distribution in contrast to earlier findings based on tax return data i also find large effects in other income percentile brackets a hypothetical tax reform cutting marginal rates only for the top 1 leads to sizeable increases in top 1 incomes and has a positive effect on real gdp there are also spillover effects to incomes outside of the top 1 but top marginal rate cuts lead to greater inequality in pre tax incomes

optimal fiscal policy in a business cycle model this paper develops the quantitative implications of optimal fiscal policy in a business cycle model in a stationary equilibrium the ex ante tax rate on capital income is approximately zero there is an equivalence class of ex post capital income tax rates and bond policies that support a given allocation within this class the optimal ex post capital tax rates can range from close to independently and identically distributed to close to a random walk the tax rate on labor income fluctuates very little and inherits the persistence properties of the exogenous shocks thus there is no presumption that optimal labor tax rates follow a random walk most of the welfare gains realized by switching from a tax system like that of the united states to the ramsey system come from an initial period of high taxation on capital income

globalization and its challenges rudi was born and grew up in krefeld germany he was an undergraduate at the university of geneva and completed his ph d at the university of chicago in 1971 which is where we met he was a student of robert mundell and both the subject matter the development of the mundell fleming model and the elegance and insights of his early work reflected mundell s influence he taught at the university of rochester and at the university of chicago before accepting an offer from mit in 1975

sticky price models of the business cycle can the contract multiplier solve the persistence problem we construct a quantitative equilibrium model with firms setting prices in a staggered fashion and use it to ask whether monetary shocks can generate business cycle fluctuations these fluctuations include persistent movements in output along with the other defining features of business cycles like volatile investment and smooth consumption we assume that prices are exogenously sticky for a short time persistent output fluctuations require endogenous price stickiness in the sense that firms choose not to change prices much when they can do so we find that for a wide range of parameter values the amount of endogenous stickiness is small thus we find that in a standard quantitative model staggered price setting alone does not generate business cycle fluctuations

could stable money have averted the great contraction i introduction although over fifty years have elapsed since the onset of the great contraction controversy still swirls about the factors responsible for its depth and long duration a basic issue is the hypothesis due to friedman and schwartz 1963 that the great contraction would have been attenuated had the federal reserve not allowed the money stock to decline although the validity of the hypothesis has been a subject of much debate there is little empirical evidence directly addressing it a direct test of the friedman and schwartz hypothesis requires simulating the behavior of output under a counterfactual policy of stable money that approach was adopted by warburton 1966 friedman 1960 and modigliani 1969 none of whom constructed a model of the economy on the basis of which to conduct his test recently mccallum 1990 has used simulations from a macro model to show that his base rule with feedback would have avoided the severe decline in nominal income that occurred between 1929 and 1933 1 the extent to which his rule would have improved the behavior of nominal income depends on the value of the feedback coefficient mccallum s simulations however do not address the issue considered here of how a stable money rule would have performed in this paper we present simulations that focus on the stable money counterfactual our model is based on mccallum s but we use a more general framework than his that a estimates separate relations for output and the price level and b places no prior restrictions on the feedback from output and the price level to money our stable money counterfactual does not change the long term rate of money growth from that actually experienced and thus involves only short run changes in the behavior of the money supply we assume that dynamics embedded in the output and price relation are not especially sensitive to this type of policy change we simulate two variants of milton friedman s 1960 constant money growth rule the first a strong form of the rule assumes that the fed could quickly offset changes in the money multiplier by changes in high powered money and thus keep the money stock on the constant growth rate path in each quarter the second a weaker form of the rule assumes that the money multiplier is observed with a one quarter lag and the fed can only set the expected rate of growth of money conditional on last period information equal to the constant rate our basic simulation is derived from a model estimated for the 1921 1 1941 4 interwar period the results of this simulation buttress the views of friedman and schwartz had a constant money growth rule with an annual rate equal to the average 1921 41 rate of 2 95 percent been followed throughout the interwar period the great contraction would have been avoided real output would have declined from 1929 3 to 1933 1 but the order of magnitude of the cumulative change 11 1 to 21 6 percent and the annual rate of change 3 3 to 6 6 percent when the actual cumulative change was 36 2 percent and the annual rate of change was 12 1 percent would have been comparable to other recessions in the nineteenth and twentieth centuries in the basic simulation we assume that the output and price relations remained stable over the entire interwar period the extraordinary economic conditions of the great contraction could have arguably shifted the output and price relations thus we also present an alternative simulation that uses estimates of these relations based on the 1920s data this simulation shows that a constant money growth rule with an annual rate equal to the 1921 29 average of 3 29 percent would have prevented even a mild recession during the great contraction period section ii contains a brief survey of the continuing debate over the cause and propagation mechanism of the great contraction and its implications for the stable money hypothesis

explicating political hazards and safeguards a transaction cost politics approach we apply the logical of comparative institutional analysis to the question of the governance of the relationship between private investors and the government we consider two strategies that investors may follow lobbying for the creation of a specialized political governance structure or the reliance on more general political mechanisms to influence policy in that sector on an ongoing basis we identify political hazards as crucial determinant of the choice of political governance and the transactional attributes that give rise to such hazards finally we highlight shift parameters in a nation s institutional environment that influence the choice between specialized and generalized political governance mechanisms

dynamic revenue estimation this paper considers the question of adopting dynamic revenue estimation methods which would incorporate the predicted macroeconomic effects of policies it describes the current revenue estimation process and how these estimates are used in the formation of policy it then evaluates this process as an exercise in forecasting considering not only its methodology but also its performance this evaluation illustrates some of the difficulties that would accompany attempts to use dynamic methods finally the paper relates the choice among different revenue estimation procedures to the political process and the use to which the revenue estimates are put

what has been learned about labor supply in the past twenty years the main advance in the study of labor supply in the past 20 years has come in recognizing and interpreting the variety of different labor supply functions that coexist in the empirical literature a crucial theoretical distinction with important empirical payoff is that between labor supply choices at the extensive margin i e labor force participation and employment choices and choices at the intensive margin i e choices about hours of work or weeks of work for workers another important distinction is the one between a descriptive labor supply function and a structural supply function that can be the basis for out of sample policy investigations concerning responses to tax and welfare programs and evaluations of welfare losses a full understanding of the participation hours dichotomy leads to an appreciation of the importance of the problem of selection bias what is the wage to impute to a nonworking person these distinctions are a legacy of the research conducted on labor supply over the past 20 years many important empirical questions have been addressed i how strong are the effects of taxes welfare and transfer programs on labor supply ii how important is intertemporal substitution can life cycle labor supply models explain business cycle labor supply behavior iii has the consensus view of the 1960 s of high labor supply elasticities for married women and low labor supply elasticities for married men held up all of the empirical evidence assembled on labor supply must be called into question in the light of important research on the basic quality of the data conducted by analysts at the university of michigan i discuss this evidence in a concluding section except for my discussion of measurement issues i focus only on the major discoveries about which a general consensus has emerged

do trade costs in goods market lead to home bias in equities abstract two of the main puzzles in international economics are the consumption and the portfolio home biases we solve for international equity portfolios in a two country two good stochastic equilibrium model with trade costs in goods markets we show that introducing trade costs as suggested by obstfeld and rogoff obstfeld m rogoff k 2000a the six major puzzles in international macroeconomics is there a common cause nber macroeconomics annual 15 is not sufficient to explain these two puzzles simultaneously on the contrary we find that trade costs create a foreign bias in portfolios for reasonable parameter values this result is robust to the addition of non tradable goods for standard calibrations of the preferences

bureaucratic discretion or congressional control regulatory policymaking by the federal trade commission this paper extends stigler and peltzman s approach to regulation by incorporating a legislature the model yields comparative statics results and hence testable implications the paper then tests between two opposing approaches about regulatory agency behavior the first assumes agencies operate independently of the legislature and hence exercise discretion the second assumes that congress controls agency decisions the recent behavior of the federal trade commission provides the empirical setting substantial evidence is found for the specific predictions of the model including the hypothesis of systematic congressional influence over ftc decisions

uncovering the complex relationships between political risk and mne firm legitimacy insights from libya using the before after natural experiment occasioned by the arab spring in libya we explore how market and non market activity affect foreign firm legitimacy in times of political turmoil although all mnes in libya had to cultivate strong ties to qadhafi to succeed during his 40 years of rule we found that those that also invested in social benefit projects and in social ties with families with few ties to the qadhafi family earned a broad based legitimacy that helped them survive qadhafi s overthrow our findings contribute to the political risk and political behavior literature the notion that the pursuit of firm legitimacy in general and especially in the eyes of social sector actors is an effective hedge against political risk more theoretically our findings support the addition of a social sector based path to firm legitimacy in the host country that complements and may at times substitute for the government based path to foreign firm legitimacy practically our findings suggest that mnes facing severe political risk can improve their prospects for survival by investing in relationships with influential social groups and by offering goods or services that are perceived as socially valuable

electoral systems and public spending we study the effects of electoral institutions on the size and composition of public expenditure in oecd and latin american countries we emphasize the distinction between purchases of goods and services which are easier to target geographically and transfers which are easier to target across social groups we present a theoretical model in which voters anticipating government policymaking under different electoral systems have an incentive to elect representatives more prone to transfer public good spending in proportional majoritarian systems the model also predicts higher total primary spending in proportional majoritarian systems when the share of transfer spending is high low after dee ning rigorous measures of proportionality to be used in the empirical investigation we e nd considerable support for our predictions

income inequality in the united states 1913 1998 this paper presents new homogeneous series on top shares of income and wages from 1913 to 1998 in the united states using individual tax returns data top income and wages shares display a u shaped pattern over the century our series suggest that the large shocks that capital owners experienced during the great depression and world war ii have had a permanent effect on top capital incomes we argue that steep progressive income and estate taxation may have prevented large fortunes from fully recovering from these shocks top wage shares were flat before world war ii dropped precipitously during the war and did not start to recover before the late 1960s but are now higher than before world war ii as a result the working rich have replaced the rentiers at the top of the income distribution

welfare and optimum dynamic taxation of consumption and income abstract this paper estimates that the us could attain large welfare gains by implementing an optimal ramsey tax policy that taxes consumption and income it is also found that the welfare implications associated with taxing consumption are quantitatively more important than those associated with dynamically taxing income indeed replacing income taxes with a constant consumption tax leads to a welfare gain that is only slightly lower than that attained by a dynamic policy that taxes consumption and income in computing these welfare gains careful attention is given to the dynamic path of tax rates and the transitional dynamics associated with how the economy responds to a new tax policy

indivisible labor lotteries and equilibrium abstract this paper considers an economy where labor is indivisible and agents are identical although the discontinuity in labor supply at the individual level disappears as a result of aggregation it is shown that indivisible labor has strong consequences for the aggregate bahavior of the economy it is also shown that optimal allocations involve lotteries over employment and consumption

the effects of progressive taxation on labor supply when hours and wages are jointly determined this paper extends a standard intertemporal labor supply model to account for progressive taxation as well as the joint determination of hourly wages and hours worked we show that these two factors can have implications for both estimating labor supply elasticities as well as for using these elasticities in tax analysis failure to account for wage hours ties and progressive taxation may cause the hours response to marginal tax rate changes to be understated by 5 to 30 percent for men

indivisible labor and the business cycle abstract a growth model with shocks to technology is studied labor is indivisible so all variability in hours worked is due to fluctuations in the number employed we find that unlike previous equilibrium models of the business cycle this economy displays large fluctuations in hours worked and relatively small fluctuations in productivity this finding is independent of individuals willingness to substitute leisure across time this and other findings are the result of studying and comparing summary statistics describing this economy an economy with divisible labor and post war u s time series

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

house prices borrowing constraints and monetary policy in the business cycle i develop a general equilibrium model with sticky prices credit constraints nominal loans and asset prices changes in asset prices modify agents borrowing capacity through collateral value changes in nominal prices affect real repayments through debt deflation monetary policy shocks move asset and nominal prices in the same direction and are amplified and propagated over time the financial accelerator is not constant across shocks nominal debt stabilises supply shocks making the economy less volatile when the central bank controls the interest rate i discuss the role of equity debt indexation and household and firm leverage in the propagation mechanism finally i find that monetary policy should not target asset prices as a means of reducing output and inflation volatility

the effect of marginal tax rates on taxable income a panel study of the 1988 tax flattening in canada abstract federal tax reform in 1988 flattened the canadian personal income tax schedule changing the marginal tax rates for many individuals using methods similar to those applied by auten and carroll rev econ 81 4 1999 681 in the study of the effects of the 1986 u s tax reform act we estimate the responsiveness of income to changes in taxes to be substantially smaller in canada however we find evidence of a much higher response in self employment income in the labor income of seniors and from those with high incomes

optimal simple and implementable monetary and fiscal rules welfare maximizing monetary and fiscal policy rules are studied in a model with sticky prices money and distortionary taxation the ramsey optimal policy is used as a point of comparison the main findings are the size of the inflation coefficient in the interest rate rule plays a minor role for welfare it matters only insofar as it affects the determinacy of equilibrium optimal monetary policy features a muted response to output interest rate rules that feature a positive response to output can lead to significant welfare losses the welfare gains from interest rate smoothing are negligible optimal fiscal policy is passive the optimal monetary and fiscal rule combination attains virtually the same level of welfare as the ramsey optimal policy

testing the bargaining hypothesis in the manufacturing sector in developing countries the bargaining power model of hc mnc host country multinational corporation interaction conceives of economic nationalism in terms of rational self interest and assumes both inherent conflict and convergent objectives in extractive industries there is strong evidence that outcomes are a function of relative bargaining power and that as power shifts to developing hcs over time the bargain obsolesces a cross national study of the bargaining model using data from 563 subsidiaries of u s manufacturing firms in forty nine developing countries indicates that while the bargaining framework is an accurate model of mnc host country relationships manufacturing is not characterized by the inherent structurally based and secular obsolescence that is found in the natural resource industries shifts in bargaining power to hcs may take place when technology is mature and global integration limited in industries characterized by changing technologies and the spread of global integration the bargain will obsolesce very slowly and the relative power of mncs may even increase over time

marginal tax rates and income inequality in a life cycle model in this paper we perform computational counterfactual experiments to examine the quantitative impact of marginal tax rates on the distribution of income our methodology builds on previous simulation models developed by auerbach and kotlikoff and fullerton and rogers and uses an algorithm that allows us to examine marginal tax rate structures in their literal form we find that distortions associated with particular marginal tax rate structures have sizable effects on income inequality in a reasonably quantified life cycle setting in our baseline experiments the change in steady state income inequality under 1989 u s income tax rates vis a vis 1984 rates is about half as large as the change actually seen in the data over those two years when measured in terms of a monetary metric derived from gini coefficients

the elasticity of taxable income with respect to marginal tax rates a critical review this paper critically surveys the large and growing literature estimating the elasticity of taxable income with respect to marginal tax rates using tax return data first we provide a theoretical framework showing under what assumptions this elasticity can be used as a sufficient statistic for efficiency and optimal tax analysis we discuss what other parameters should be estimated when the elasticity is not a sufficient statistic second we discuss conceptually the key issues that arise in the empirical estimation of the elasticity of taxable income using the example of the 1993 top individual income tax rate increase in the united states to illustrate those issues third we provide a critical discussion of selected empirical analyses of the elasticity of taxable income in light of the theoretical and empirical framework we laid out finally we discuss avenues for future research jel h24 h31 j22

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

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

changing credit limits changing business cycles abstract in the last half century capital markets across the industrialized world have undergone massive deregulation involving large increases in the loan to value ltv ratios of households and firms we study the business cycle implications of this phenomenon in an estimated dynamic general equilibrium model with multiple credit constrained agents a progressive relaxation of credit constraints initially leads to both higher macroeconomic volatility and stronger comovement between debt and real activity this pattern reverses at ltv ratios not far from those currently observed in many advanced economies due to credit constraints becoming non binding more often the non monotonic relationship between credit market conditions and macroeconomic fluctuations carries important lessons for regulatory and macroprudential policymakers while reducing the average ltv ratio may unintentionally increase macroeconomic volatility a countercyclical ltv ratio proves to be successful in dampening business cycle fluctuations and most importantly avoiding dramatic output drops

electoral rules and corruption is corruption systematically related to electoral rules recent theoretical work suggests a positive answer but little is known about the data we try to address this lacuna by relating corruption to different features of the electoral system in a sample of about eighty democracies in the 1990s we exploit the cross country variation in the data as well as the time variation arising from recent episodes of electoral reform the evidence is consistent with the theoretical priors larger voting districts and thus lower barriers to entry are associated with less corruption whereas larger shares of candidates elected from party lists and thus less individual accountability are associated with more corruption individual accountability appears to be most strongly tied to personal ballots in plurality rule elections even though open party lists also seem to have some effect because different aspects roughly offset each other a switch from strictly proportional to strictly majoritarian elections only has a small negative effect on corruption jel e62 h3

tax arbitrage and labor supply we examine how tax avoidance in the form of trade in well functioning asset markets affects the basic labor supply model we show that tax arbitrage has dramatic implications for positive normative and econometric analysis of how taxes affect work incentives

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

tax projections and the budget lessons from the 1980 s some economists have argued that the disincentive effects of marginal tax rate increases in the 1980s caused revenue to rise by less than had been anticipated to evaluate the hypothesis this paper considers omb revenue forecasts and forecast errors for the period 1982 93 if the revenue gains from tax increases and the revenue losses from tax cuts were overstated because of inadequate allowance for behavioral responses then the forecast errors should be negatively related to the initial revenue estimates of the impact of policy changes for excise taxes and corporate income taxes the results suggest that the systematic overprediction of revenues during the period can be explained in part by an underestimate of behavioral responses to taxation this abstract was borrowed from another version of this item

the evolution of income concentration in japan 1886 2005 evidence from income tax statistics abstract this paper studies the evolution of income concentration in japan from 1886 to 2005 by constructing long run series of top income shares and top wage income shares using income tax statistics we find that i income concentration was extremely high throughout the pre wwii period during which the nation underwent rapid industrialization ii a drastic de concentration of income at the top took place in 1938 1945 iii income concentration remained low during the rest of the century but shows some sign of increase in the last decade and iv top income composition in japan has shifted dramatically from capital income to employment income over the course of the twentieth century we attribute the precipitous fall in income concentration during wwii primarily to the collapse of capital income due to wartime regulations and inflation we argue that the change in the institutional structure under the occupational reforms made the one time income de concentration difficult to reverse in contrast t

experimental evidence on the relationship between tax evasion opportunities and labor supply abstract motivated by the observation that access to evasion opportunities is distributed heterogeneously across the labor market this paper examines the extent to which labor supply elasticities with respect to tax rates depend on such evasion opportunities we first discuss the channels through which access to evasion affects labor supply responses and then set up a laboratory experiment n 205 in which all participants undertake a real effort task over several rounds subjects face a tax rate that varies across rounds and are required to pay taxes on earned income the treatment group is given the opportunity to underreport income while the control group is not we find evidence that participants in the treatment group respond differently to changes in the net of tax rate than participants in the control group the effect is more prevalent when tax rates fall additionally the direction of the treatment effect is dependent on the evolution of tax rates across rounds

credit cycles redux theoretical studies have shown that under unorthodox assumptions on preferences and production technologies collateral constraints can act as a powerful amplification and propagation mechanism of exogenous shocks we investigate whether or not this result holds under more standard assumptions we find that collateral constraints typically generate small output amplification large amplification is obtained as a knife edge type of result

the use of structural models in econometrics costas meghir has been supported by the cowles foundation and the institution for social and policy studies isps at yale university

dynamic scoring an introduction to the issues working together cbo and jct provide two types of revenue and expenditure projections for congress i forecasts of expenditures and revenues based on assumptions about what current policy is and ii forecasts of the changes in expenditures and revenues that would result from proposed legislation the first type of forecast is known as a baseline the second type is called scoring the two types of forecasts are interdependent projected effects of legislation depend on the starting point so the baseline affects scoring updates of the baseline reflect the estimated impact of legislation so scoring affects the baseline on the revenue side where dynamic scoring has received the greatest attention the baseline forecasts are provided to congress by cbo while scoring is done by the jct in a sense the debate over dynamic scoring may be traced to an inconsistency in the way that legislative changes are handled by the two agencies macroeconomic feedback effects are ultimately incorporated in cbo s baseline but are not attributed by jct to any source when the proposals are scored this inconsistency is most easily understood in terms of relative informational requirements one can update a baseline to account for macroeconomic changes without attributing these changes to particular legislation indeed the models used to construct baselines are not specified at the level of detail that would be necessary to do so under standard scoring procedures jct scores proposed legislation taking the macroeconomic forecast underlying the cbo baseline including nominal gdp and other aggregates as given it is misleading to refer to these revenue estimates as static because they do take certain behavioral effects into account for example when jct scores a change in the capitalgains tax rate it includes the revenue offset associated with changes in capital gains realizations but missing is any further impact on revenues or expenditures that might result from induced changes in output interest rates or other elements of the macroeconomic forecast thus current scoring estimates incorporate micro dynamic effects but not macro ones

redistribution when avoidance behavior is heterogeneous abstract the optimal income taxation framework is extended to account for heterogeneity in avoidance behavior the optimal tax formulae are shown to be simply and intuitively modified to reflect the value of taxable income as an indicator of the need for transfers at a given skill level this effect is in addition to any effect implied by just considering additional margins of response to taxes alternative sources of heterogeneity and their likely consequences are discussed when the choice of administration is added to the model it is demonstrated that the optimal tax system may include some seemingly wasteful avoidance schemes even if they could be eliminated without any cost when an avoidance scheme is more heavily used by the needy it may provide additional redistribution without affecting standard incentive constraints

what happens when you tax the rich evidence from executive compensation this paper examines the responsiveness of taxable income to changes in marginal tax rates using detailed compensation data on several thousand corporate executives from 1991 to 1995 the data confirm that the higher marginal rates of 1993 led to a significant decline in taxable income indeed this small group of executives may account for as much as 20 percent of the aggregate change in wage and salary income for approximately the one million richest taxpayers over this time period one person alone can account for more than 2 percent the decline however is almost entirely a short run shift in the timing of compensation rather than a permanent reduction in taxable income the short run elasticity of taxable income with respect to the net of tax share exceeds one in this sample but the elasticity after one year is at most 0 4 and probably closer to zero breaking out the tax responsiveness of different types of compensation shows that the large short run responses come almost entirely from a large inc

the elasticity of taxable income during the 1990s new estimates and sensitivity analyses author affiliation seth h giertz sgiertz2 unl edu acknowledgment the author wishes to thank david weiner ed harris bob dennis doug hamilton tom woodward emmanuel saez chris bollinger and three anonymous referees for their comments and assistance 1 introductioneconomists have long recognized that taxation creates economic inefficiency by distorting relative prices often between leisure and all other goods in the economy even a broad based income tax can have substantial efficiency costs so long as leisure remains untaxed harberger 1964 uses this as motivation for comparing the efficiency implications of direct versus indirect taxation in so doing he shows how labor supply elasticities can be used to measure the efficiency implications of income taxation 1 harberger s analysis had a profound influence on public and labor economists spurring increased research into labor supply elasticities which were seen as proxies for the efficiency costs from taxation more than two decades after harberger economists began to emphasize the variety of other margins over which taxes can distort behavior in addition to hours worked these economists noted that these other behavioral responses may too have important implications for efficiency an important building block in the evolution of this literature was set forth by slemrod 1990 who presented a hierarchy of behavioral responses to taxation slemrod divided behavior into three categories based on their responsiveness to taxes his least responsive category real responses includes individuals changing consumption and work patterns and businesses altering investment and production decisions second in order of responsiveness is circumvention which includes both illegally evasion and legally avoidance bypassing the tax system 2 in the case of evasion income is concealed from tax authorities or factors that offset tax liabilities such as expenses and deductions are inflated beyond what is legally permitted in the case of avoidance income is shifted in order to receive more favorable tax treatment diverting income into a tax deferred retirement account is an example of avoidance 3 included in circumvention is the expenditure of time and money necessary to avoid or evade taxation third on the hierarchy and the most responsive is the timing of income receipt which includes pulling the receipt of income into the previous year or pushing it into the next in order to take advantage of more favorable tax treatment while not altering real behavior 4 slemrod further recognizes that the type of behavioral response could have implications for both tax revenue and tax incidence and in some cases efficiency predating slemrod s insights lindsey 1987 produced elasticity estimates for taxable income although what lindsey termed taxable income more closely approximates adjusted gross income agi instead of labor supply 5 lindsey s estimated elasticities were much larger than the labor supply literature would have suggested lindsey emphasized the revenue implications of the elasticity of taxable income eti but not its efficiency implications building on slemrod and lindsey feldstein 1995 produced eti estimates but went much further than lindsey in describing the behaviors that could affect taxable income he argued that many of these behaviors were not captured by labor supply elasticities furthermore feldstein posited that income taxation creates economic inefficiency not only by distorting the relative price between labor and leisure but more broadly by distorting the relative price between goods or activities that are taxed and those that are not taxed since leisure is not the only untaxed activity for example in response to taxes not only work hours but also work effort might change

tax avoidance and the deadweight loss of the income tax traditional analyses of the income tax greatly underestimate deadweight losses by ignoring its effect on forms of compensation and patterns of consumption the full deadweight loss is easily calculated using the compensated elasticity of taxable income to changes in tax rates because leisure excludable income and deductible consumption are a hicksian composite good microeconomic estimates imply a deadweight loss of as much as 30 of revenue or more than ten times harberger s classic 1964 estimate the relative deadweight loss caused by increasing existing tax rates is substantially greater and may exceed 2 per 1 of revenue

the tax effect on taxable income from privately held businesses the implications of the tax elasticity of taxable income have been widely discussed in the literature this study uses the reported rate of return to capture the effects of tax changes on taxable income from privately held businesses households decisions concerning reporting rates of return are embedded in a selection model of business investment decisions with 1983 1989 survey of consumer finances panel data the tax elasticity of the reported rates of return on privately held businesses is found to be positive and large the tax elasticity of taxable income from privately held businesses is thus crucial for policy evaluation several reasons for the high tax elasticity and the implications of it are also discussed

the elasticity of taxable income evidence and implications abstract a central tax policy parameter that has recently received much attention but about which there is substantial uncertainty is the overall elasticity of taxable income we provide new estimates of this elasticity which address identification problems with previous work by exploiting a long panel of tax returns to study a series of tax reforms throughout the 1980s this identification strategy also allows us to provide new evidence on both the income effects of tax changes on taxable income and on variation in the elasticity of taxable income by income group we find that the overall elasticity of taxable income is approximately 0 4 the elasticity of real income not including tax preferences is much lower we estimate small income effects of tax changes on reported income implying that the compensated and uncompensated elasticities of taxable income are very similar we estimate that this overall elasticity is primarily due to a very elastic response of taxable income for taxpayers who have incomes above 100 000 per year who have an elasticity of 0 57 while for those with incomes below 100 000 per year the elasticity is less than one third as large moreover high income taxpayers who itemize are particularly responsive to taxation our estimates suggest that optimal tax structures may feature tightly targeted transfers to lower income taxpayers and a flat or even declining marginal rate structure for middle and high income taxpayers

estimating taxable income responses with elasticity heterogeneity abstract we explore elasticity heterogeneity in the estimation of the elasticity of taxable income eti and propose potentially valid instruments we show that previously used instruments are not valid and yield weighted averages of etis of different taxpayers plus a bias using the nber tax panel for 1979 1990 we find a weighted average eti of 0 57 when using all available variation in budget set changes provided by the tax reforms in the data our results also demonstrate that elasticity heterogeneity is an important explanation for the remarkable divergence of estimates in the previous literature

partnering with leviathan the politics of innovation in foreign host state joint ventures forming international joint ventures ijvs with political institutions in emerging economies involves both benefits and risks for multinational enterprises mnes while political partners can provide ijvs with various resources their political status equips them with a strong position to appropriate rents in ijvs we address this tension by examining how host state ownership affects both innovation inputs and outputs in china based ijvs over 2008 2013 despite the potential government opportunism we find more r d investment innovation inputs made in ijvs with state partners than in those with private ones thus r d investment can be politically motivated and symbolically managed to ensure continued resource exchanges with the host state this political pressure is mitigated when foreign parents directly transfer home country based technology to ijvs when the host market dependence of ijv is weak and when ijvs are located in a deregulated region moreover we find foreign host state jvs deliver fewer innovation outputs measured by patent data than foreign private jvs which implies the failure of state partners to adequately absorb foreign technologies these findings highlight both the state partners powerfulness to boost ijv innovation investment and their limits in shaping ijv innovation outcomes and bear rich implications for the management of mne host government relationships

non linear effects of tax changes on output the role of the initial level of taxation this paper estimates the effect of worldwide tax changes on output following the narrative approach developed for the united states by romer and romer 2010 the analysis uses a novel dataset on value added taxes for 51 countries 21 industrial and 30 developing for the period 1970 2014 to identify 96 tax changes it then uses contemporaneous economic records to classify such changes as endogenous or exogenous to current or prospective economic conditions in line with theoretical distortionary and disincentive based arguments and using only exogenous tax changes the main finding is that the effect of tax changes on output is highly non linear the tax multiplier is essentially zero under relatively low moderate initial tax rate levels and more negative as the initial tax rate and the size of the change in the tax rate increase based on a global sample these novel non linear findings suggest that the recent consensus pointing to large negative tax multipliers in industrial countries particularly in europe e g alesina favero and giavazzi 2015 i is not a robust empirical regularity and ii is mainly driven by high initial tax rates in these countries the paper also shows that the bias introduced by misidentification of tax shocks critically depends on the procyclical or countercyclical nature of endogenous tax changes the relevance of the arguments is evaluated both for the novel global sample and for romer and romer s u s dataset

politics and productivity i introduction economic studies of long run performance are focusing increasingly on political legal financial and social factors development is no longer regarded as a gradual inevitable transformation from self sufficiency to specialization and participation in the division of labor instead progress follows the creation and evolution of institutions that support social and commercial relationships the new institutional economics explains that growth requires that the potential hazards of trade shirking opportunism risk and so on be controlled by institutions like secure property rights reliable procedures for resolving disputes and means of enforcing contracts in the absence of close social ties these institutions reduce information costs encourage capital formation and capital mobility allow risks to be priced and shared and otherwise facilitate cooperation north and thomas 1973 north 1990 drobak and nye 1997 levine 1997 in particular political authorities must make credible commitments not to expropriate private resources once investments have been made 1 despite widespread agreement that institutions matter there is no consensus on how they should be incorporated into the analysis even the best empirical studies of productivity and growth treat institutional characteristics in an eclectic way barro s 1991 influential article for example uses the numbers of assassinations and revolutions per capita as proxies for political instability finding these measures negatively correlated with growth and investment scully 1988 regresses growth rates on dummy variables derived from gastil s 1982 ordinal rankings of political and economic liberty king and levine 1993a 1993b 1993c derive various measures of the quality of financial intermediaries and show that these measures are good predictors of growth this article presents a different approach to analyzing the relationship between institutions and aggregate economic performance following the modem productivity literature see for example fried et al 1993 we model economic performance with a stochastic production frontier frontier analysis is a form of benchmarking it analyzes a group of branches firms nations or other units by identifying best practices and evaluating each member s performance relative to the best practice frontier the results produce not only qualitative rankings of the group members but also numerical efficiency scores that can be used to assess the effects of various policies and characteristics for this reason frontier analysis is well suited for studying the effects of legal and political institutions on the economic performance of nations to capture institutional factors we use two comprehensive indexes of legal regulatory and political conditions working with a broad sample of countries from 1975 to 1990 we incorporate a widely used measure of economic freedom along with a new measure of policy stability to represent a country s institutional environment the new institutional economics suggests that countries with high levels of economic freedom protection of private property rights respect for the rule of law an unhampered price system and so on and policy stability commitment not to change the rules of the game ex post will be closer to the best practice frontier in our model economic freedom and policy stability affect economic performance by enhancing technical efficiency in other words these institutions do not alter the state of technology but they allow producers to squeeze more out of current technology for instance countries with more stable policies attract more foreign investment than countries with less stable policies ceteris paribus this leads to increased competition among producers which in turn brings efficiency gains similarly countries with lower taxes milder regulatory burdens lower inflation fewer restrictions on foreign ownership and so on are likely to produce output more efficiently than countries with policies that restrict production inhibit capital formation and reduce competition

reported gross income and marginal tax rates estimation of the behavioural reactions of spanish taxpayers this article estimates for the spanish personal income tax the elasticity of reported gross income to marginal tax rates the identification of this elasticity has been performed using the reform approved by law 35 2006 which came into force in january 2007 the elasticities obtained suggest the existence of important efficiency costs with significant regional differences the average elasticity estimated for spain as a whole is 0 676 however this elasticity is highly dispersed throughout the spanish administrative regions which indicates the unequal power of distortion of the tax thus households whose principal source of income is salary display an elasticity of 0 337 compared to 0 682 for households whose main income source comes from business or savings lastly a positive correlation is also detected between elasticity and income level an elasticity of 3 6 is reached for taxpayers with an annual gross income exceeding 100 000

perspectives on positive political economy this volume serves as an introduction to the field of positive political economy and the economic and political processes with which it is concerned this new research tradition is distinct from both normative and historical approaches to political economy grounded in the rational actor methodology of microeconomics positive political economy is the study of rational decisions in a context of political and economic institutions more analytical than traditional approaches it is concerned with the derivation of principles and propositions against which real world experience may be compared its focus is on empirical regularities and its goal is theoretical explanation the field has focused on three main areas of research models of collective action constraints on competitive market processes and the analysis of transaction costs developments in all of these areas are covered in the book the first part of the volume surveys the field while the second part displays positive political economy at work examining a variety of subjects the final part contains essays by leading political economists on the theoretical foundations of the field

taxation and top incomes in canada we estimate the elasticity of reported income with respect to tax rates for high earners using sub national variation across canadian provinces we argue this allows for better identification of tax elasticities than the existing literature we find that elasticities of reported income at the provincial level are large for incomes in the top 1 but small for lower earners there are strong indications that the response happens both through earned and capital income while our estimated elasticities are large changes in tax rates cannot explain much of the overall long run trend of higher income concentration in canada resume fiscalite et revenus les plus eleves au canada les auteurs evaluent l elasticite du revenu declare par rapport aux taux d imposition pour les revenus les plus eleves en utilisant les variations intra nationales a travers les provinces du canada ils suggerent que cela produit une meilleure identification des elasticites que ce que contient la litterature pour le moment on decouvre que les elasticites du revenu declare sont elevees pour les 1 au sommet mais faibles pour les revenus plus bas il appert fortement que la reponse se produit tant pour les revenus gagnes que pour les revenus d investissement meme si les elasticites mesurees sont elevees les changements dans les taux d imposition ne peuvent pas expliquer beaucoup de la tendance a long terme vers une plus forte concentration des hauts revenus au canada

evidence on the insurance effect of redistributive taxation copyright 2010 by the president and fellows of harvard college and the massachusetts institute of technology

does tax policy affect executive compensation evidence from postwar tax reforms abstract the trends in executive pay and labor income tax rates since the 1940s suggest a high elasticity of taxable income with respect to tax policy by contrast the level and structure of executive compensation have been largely unresponsive to tax incentives since the 1980s however the relative tax advantage of different forms of pay was small during this period using a sample of top executives in large firms from 1946 to 2005 we also find a small short run response of salaries qualified stock options and bonuses paid after retirement to changes in tax rates on labor income even though tax rates were significantly higher and more heterogeneous across individuals in the first several decades following wwii we explore several potential explanations for the conflicting impressions given by the long run and short run correlations between taxes and pay including changes in social norms and concerns about pay equality

the effect of age targeted tax credits on labor force participation of older workers abstract i analyze the effect of income tax policy changes on labor force participation of older workers i exploit two age targeted policy initiatives to promote work at older ages simultaneously implemented in sweden in 2007 an earned income tax credit and a payroll tax credit for workers above age 65 using an age based discontinuity in eligibility criteria i conduct a difference in differences analysis with the reform as an instrument for the net of tax rate i find a participation elasticity with respect to the net of participation tax rate of about 0 22 in the year following the 65th birthday for individuals who were working four years earlier

international real business cycles we ask whether a two country real business cycle model can account simultaneously for domestic and international aspects of business cycles with this question in mind we document a number of discrepancies between theory and data the most striking discrepancy concerns the correlations of consumption and output across countries in the data outputs are generally more highly correlated across countries than consumptions in the model we see the opposite

land price dynamics and macroeconomic fluctuations with nonseparable preferences abstract in this paper we introduce a complementary relationship between consumption and labor hours by revising the household s period utility function in liu et al 2013 the revision concomitantly allows for a finite frisch elasticity of labor supply and a stronger consumption smoothing motive we find that in general the estimation of liu et al 2013 is quite robust in addition the propagation mechanism of the credit constraint triggered by a housing demand shock still persists however the amplification effect of the credit constraint triggered by the housing demand shock on key macroeconomic variables is greatly muted we also find that except for land price fluctuations the housing demand shock cannot act as the primary force to drive the fluctuations in other macroeconomic variables

did tax flattening affect rrsp contributions in 1988 marginal personal income tax rates changed in canada for some individuals by reasonably substantial amounts in this note a large sample of tax filer data is examined and the conclusion is drawn that when attention is paid to the possible confounding of marginal tax rate and non linear income effects there is no convincing evidence that the tax rate changes affected contributions to registered retirement saving plans rrsps est ce que l aplatissement des taux d imposition influence les contributions au reer en 1988 les taux marginaux d imposition du revenu personnel ont change au canada et pour certaines personnes ces changements ont ete substantiels cette note examine un grand echantillon de rapports d impots et en arrive a la conclusion que quand on prend en compte le melange possible des effets du taux marginal d imposition et des effets de revenu non lineaires il n y a pas de resultats qui montrent de facon probante que les changements dans les taux d imposition ont influence les contributions au reer