intertemporal labor supply and human capital accumulation we solve and estimate a dynamic model that allows agents to optimally choose their labor hours and consumption and that allows for both human capital accumulation and savings estimation results and simulation exercises indicate that the intertemporal elasticity of substitution is much higher than the conventional estimates and the downward bias comes from the omission of the human capital accumulation effect the human capital accumulation effect renders the life cycle path of the shadow wage relatively flat even though wages increase with age hence a rather flat life cycle labor supply path can be reconciled with a high intertemporal elasticity of substitution

labor supply responses and welfare effects of tax reforms during the late 1 980s and early 1 990s taxation of wage income has undergone a change towards a proportional tax regime in many countries our analysis shows that gradual tax reforms in norway may have removed some of the distortions on worker behavior moreover we find that proportional taxes may reduce the inequality in the distribution of disposable household income yet when the distributional consequences are related to changes in individual welfare we find that rich households may benefit far more than households at the other tail of the income distribution because they earn more without any significant increase in effort

new evidence on labor supply employment versus hours elasticities by sex and marital status using the tri annual micro panel data of the survey of income and program participation we estimate fixed effects labor supply models separating the extensive and intensive margins the employment elasticity is 0 6 for single men versus 1 1 for married men the employment elasticity is 2 4 for single women versus 1 8 for married women the compensated hours worked elasticity is 0 4 for employed single and married men and 0 7 for employed single and married women the implied aggregate employment elasticity of 1 5 and hours per employee elasticity of 0 5 indicate employment fluctuations account for three fourths of wage induced variation in labor hours

corrigendum on a life cycle model of female labour supply in the empirical work in our article on the intertemporal substitution of leisure time for married women heckman and macurdy 1980 we inadvertently constrained the estimated intertemporal substitution elasticity to be too high since this parameter plays a prominent role in discussions of equilibrium models of the business cycle and since our empirical work has been cited in discussions on this topic e g hall 1980 we would like to present a corrected set of empirical results for our model the period t utility function adopted in this note is in the notation of our original paper equation 15

micro and macro elasticities in a life cycle model with taxes we build a life cycle model of labor supply that incorporates changes along both the intensive and extensive margin and use it to assess the consequences of changes in tax and transfer policies on equilibrium hours of work we find that changes in taxes have large aggregate effects on hours of work moreover we find that there is no inconsistency between this result and the empirical finding of small labor elasticities for prime age workers in our model micro and macro elasticities are effectively unrelated our model is also consistent with other cross country patterns

incentive equivalence with fixed migration costs abstract if migration between communities is costless and if policy makers in each community anticipate the migration response to policy changes then the interests of the two communities are perfectly aligned decentralization is efficient this incentive equivalence is well known however the first order approach used in virtually all the literature may obscure the fact that no convexity assumptions need be made about technology or tastes this fact underscores the relevance of incentive equivalence even when there are scale economies in the public sector here the consequences of positive migration costs for this incentive equivalence are considered in contrast with much of the literature migration costs are assumed the same for everyone this formulation differs from the more common attachment to home assumption of heterogeneous migration costs conditional on the direction of migration interests of different communities are still perfectly aligned but natives of different communities may prefer different directions of migration weakening incentive equivalence if local policy makers have the power to induce large changes in migration flows however incentive equivalence fails only if economies of scale in population are important so that communities may be under populated

on price taking equilibria in club economies with nonanonymous crowding abstract competitive equilibrium in a coalition production economy or a club economy typically does not exist when there is free entry for two reasons first there may be an integer problem as is familiar from club theory with anonymous crowding second optimal groups may have different compositions from the population and then even if there is no integer problem it may be impossible to partition the population into optimal groups i define a notion of approximate equilibrium and show that such an equilibrium always exists in a sufficiently large economy i focus on the optimal size of the economy rather than of clubs

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

an empirical model of labor supply in a life cycle setting this paper formulates and estimates a structural intertemporal model of labor supply using theoretical characterizations derived from an economic model of lifetime behavior a two step empirical analysis yields estimates of intertemporal and uncompensated substitution effects which provide the information needed to predict the response of hours of work to life cycle wage growth and shifts in the lifetime wage path

micro and macro labor supply elasticities a reassessment of conventional wisdom the response of aggregate labor supply to various changes in the economic environ ment is central to many economic issues especially the optimal design of tax policies conventional wisdom based on studies in the 1980s and 1990s has long held that the analysis of micro data leads one to conclude that aggregate labor supply elasticities are quite small in this paper we argue that this conventional wisdom does not hold up to empirically reasonable and relevant extensions of simple life cycle models that served as the basis for these conclusions in particular we show that several pieces of conventional wisdom fail in the presence of human capital accumulation or labor supply decisions that allow for adjustment along both the extensive and intensive margin we conclude that previous estimates of small labor supply elasticities based on micro data are fully consistent with large aggregate labor supply elasticities jel d91 e24 j22

the estimation of a joint wage hours labor supply model in this paper the standard cross sectional static model of labor supply is modified to make the wage endogenous and a joint wage hours model is estimated the econometric technique addresses the non linearity of the budget constraint by approximating the constraint by a series of discrete points the results show that the budget constraint is indeed nonlinear that hours affect the wage quadratically that true wage elasticities are lower as a result and that the model fits the hours distribution much better than the standard tobit model

the effect of income taxation on the labor supply of married men in sweden abstract this paper presents labor supply functions estimated on a sample of prime age swedish males the model used takes account of the nonlinear character of individuals budget sets caused by the progressive income tax it also allows preferences to vary between individuals calculations with the estimated functions using a partial equilibrium framework indicate a sizeable effect of the income tax on hours of work the average expected deadweight loss of the income tax is found to be approximately 20 percent of tax revenue

taxation of human capital and wage inequality a cross country analysis wage inequality has been significantly higher in the united states than in continental european countries ceu since the 1970s moreover this inequality gap has further widened during this period as the us has experienced a large increase in wage inequality whereas the ceu has seen only modest changes this paper studies the role of labor income tax policies for understanding these facts we begin by documenting two new empirical facts that link these inequality differences to tax policies first we show that countries with more progressive labor income tax schedules have significantly lower before tax wage inequality at different points in time second progressivity is also negatively correlated with the rise in wage inequality during this period we then construct a life cycle model in which individuals decide each period whether to go to school work or be unemployed individuals can accumulate skills either in school or while working wage inequality arises from differences across individuals in their ability to learn new skills as well as from idiosyncratic shocks progressive taxation compresses the after tax wage structure thereby distorting the incentives to accumulate human capital in turn reducing the cross sectional dispersion of before tax wages we find that these policies can account for half of the difference between the us and the ceu in overall wage inequality and 76 of the difference in inequality at the upper end log 90 50 differential when this economy experiences skill biased technological change progressivity also dampens the rise in wage dispersion over time the model explains 41 of the difference in the total rise in inequality and 58 of the difference at the upper end

competitive equilibrium and the core in club economies with anonymous crowding in club economies with anonymous crowding competitive equilibrium states of the economy are efficient and coincide with the core when there is only one private good anonymous admission prices permit consumers with different tastes to share facilities consumers might do so when their demands for facility size and crowding coincide in which case sharing is efficient thus similarity of demands is the relevant consideration for efficiently grouping consumers with different tastes

a life cycle consistent empirical model of family labour supply using cross section data this paper estimates a utility maximising model of the joint determination of male and female labour supplies using a sample of married couples from the u k family expenditure survey the emphasis is on the estimation of within period preferences that are consistent with intertemporal two stage budgeting under uncertainty however the approach we adopt provides an alternative method of estimating certain aspects of life cycle behaviour to the fixed effects constant approach of heckman and macurdy 1980 macurdy 1981 and browning deaton and irish 1985 moreover it relaxes some of the underlying restrictions that are implicit in these constant models under uncertainty

redistribution within and across the regions of a federation the authors reconsider the literature on redistribution within a federation with mobile agents they conclude that redistribution is a function best assigned to the national government local governments with diverse preferences for redistribution distort individual migration decisions the authors also examine the fiscal externality literature which has made an efficiency argument for interregional transfers they show that if local governments have the same preferences for redistribution the nash equilibrium is efficient if preferences are diverse the authors show that nationally imposed interregional transfers do not address the source of the inefficiency nevertheless interregional transfers are shown to be a part of decentralized behavior

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

should land and capital be taxed at a uniform rate if jurisdictions are allowed to tax land and capital separately they tax only land because capital taxation distorts the allocation of mobile capital to exploit absentee owners however jurisdictions tax land beyond the efficient level as absentee ownership increases throughout the economy land taxation results in greater inefficiency to alleviate the inefficiency of overtaxing land the higher level government intervenes to require jurisdictions to tax both capital and land at a uniform rate because the desire to attract capital lowers the tax rate uniform taxation of land and capital or property taxation thus may be more efficient than separate taxation jel classification h21 h71 est ce que la terre et le capital devraient etre taxes d une maniere uniforme si on permettait aux diverses juridictions de taxer capital et terre separement elles taxeraient seulement la terre parce que la fiscalite imposee au capital cree des distorsions dans l allocation du capital mobile mais pour exploiter les proprietaires absents les diverses juridictions imposent un fardeau fiscal sur la terre qui va au dela de ce que l efficacite commande a proportion que la propriete absente se developpe dans l economie la fiscalite imposee a la terre devient source de plus en plus grande inefficacite pour reduire cette inefficacite attribuable a la sur taxation de la terre le niveau senior de gouvernement intervient pour forcer les juridictions juniors a taxer capital et terre au meme taux parce que le desir d attirer le capital reduit le taux de taxation il se peut donc que la taxation uniforme de la terre et du capital ou de la taxation sur la propriete soit plus efficace que des taux d imposition differents

labor supply and taxes a survey i survey the male and female labor supply literatures focusing on implications for effects of wages and taxes for males i describe and contrast results from three basic types of model static models especially those that account for nonlinear taxes life cycle models with savings and life cycle models with both savings and human capital for women more important distinctions are whether models include fixed costs of work and whether they treat demographics like fertility and marriage and human capital as exogenous or endogenous the literature is characterized by considerable controversy over the responsiveness of labor supply to changes in wages and taxes at least for males it is fair to say that most economists believe labor supply elasticities are small but a sizeable minority of studies that i examine obtain large values hence there is no clear consensus on this point in fact a simple average of hicks elasticities across all the studies i examine is 0 30 several simulation studies have shown that such a value is large enough to generate large welfare costs of income taxation for males i conclude that two factors drive many of the differences in results across studies one factor is use of direct vs ratio wage measures with studies that use the former tending to find larger elasticties another factor is the failure of most studies to account for human capital returns to work experience i argue that this may lead to downward bias in elasticity estimates in a model that includes human capital i show how even modest elasticities as conventionally measured can be consistent with large welfare costs of taxation

social security and cross country differences in hours a general equilibrium analysis abstract i develop a general equilibrium life cycle model with an intensive and extensive margin of labor supply and endogenous human capital accumulation i use the model to assess the effects of changes to various features of social security on labor supply outcomes of particular interest are changes to the scale of the program and to the relevant eligibility rules i find that the cross country differences in social security programs account for at least 79 of the differences in employment rates of people aged 55 64 and 17 31 of the differences in aggregate hours worked between the us and continental europe

a model of competing jurisdictions with locally polluting environments and mobile populations in this model we consider a federation consisting oftwo geographically separated regional states withlocal taxing authority the residents of thefederation are identical in preferences and haveexplicit tolerance to pollution pollution is local innature and is a by product of production implying amore highly populated region would generate morepollution local authorities in the regions can andwill in the interest of local residents engage ingame theoretical taxation strategies the model isused to illustrate that nash equilibrium can resultwherein the two regions have different levels ofenvironmental quality the resulting nash conditionsimply for instance that residents of the cleanregion will subsidize those in the other region tostay in the more polluted environment in order foreach to accomplish their preferred consumption andenvironmental quality pair

the effects of health insurance and self insurance on retirement behavior this paper provides an empirical analysis of the effects of employer provided health insurance medicare and social security on retirement behavior using data from the health and retirement study we estimate a dynamic programming model of retirement that accounts for both saving and uncertain medical expenses our results suggest that medicare is important for understanding retirement behavior and that uncertainty and saving are both important for understanding the labor supply responses to medicare half the value placed by a typical worker on his employer provided health insurance is the value of reduced medical expense risk raising the medicare eligibility age from 65 to 67 leads individuals to work an additional 0 074 years over ages 60 69 in comparison eliminating 2 years worth of social security benefits increases years of work by 0 076 years

dynamic labour force participation of married women and endogenous work experience this paper presents and estimates a dynamic model of married women s labour force participation and fertility in which the effect of work experience on wages is explicitly taken into account because current participation alters future potential earnings the investment return to work will be an important factor in the current work decision in any forward looking behavioural model the model is estimated using the national longitudinal surveys mature women s cohort we use the estimates of our model to predict changes in the lifecycle patterns of employment due to changes in schooling fertility husband s income and the magnitude of the experience effect on wages we find that although work experience increases the disutility of further work the effect is overwhelmed by the positive effect of experience on wages leading to persistence in the employment patterns of these women in addition we find that an increase in young children and in husband s income substantially reduces participation while increased schooling has a powerful positive impact on participation this paper presents an estimable structural dynamic model of married women s labour force participation and fertility in which wages are stochastic and work experience or cumulative participation is endogeneous the model is structural in the sense that the parameters which are estimated are contained in the fundamental relationships governing behaviour namely the utility function and the constraints the model is contained in the class of models which describe the life cycle capital accumulation process with endogeneous labour supply such as weiss 1972 and heckman 1976 it is closest in spirit to that of weiss and gronau 1981 1 the basic feature of their model and ours is that labour market participation affects future wages which then affects future participation the investment return to current work will necessarily be taken into account in any forward looking optimizing model as weiss and gronau note estimates of labour supply models have ignored the inherent behavioural dynamics associated with a positive wageexperience profile there is no adequate empirical treatment of the human capital investment dimension of the labour force participation decision in the literature heckman and willis 1977 have studied a sequential discrete choice model of the labour force participation of married women in a reduced form framework their work

intertemporal substitution in labor supply evidence from micro data the sensitivity of the supply of labor to intertemporal variation in the wage is an important issue in macroeconomics the analysis of social security and pensions and the study of life cycle patterns of work this paper explores two approaches to the measurement of intertemporal substitution that have appeared in the literature the first approach is to use consumption to control for wealth and unobserved expectations about future wages in the labor supply equation the second approach is to estimate a first difference equation for hours in which labor supply from the previous period serves as a control for wealth and wage expectations the results indicate that intertemporal substitution elasticity for married men is positive but small

retirement and consumption in a life cycle model consumption expenditure declines sharply at the time of retirement for many households but the majority maintain a smooth consumption path a simple life cycle model with uncertainty about the time of retirement can account for this pattern a richer version of the model is calibrated to data from the health and retirement study hrs the median change in consumption expenditure at retirement generated by the model is zero while the mean is negative matching the hrs data however the magnitude of the drop in consumption among households that experience a decline is too small in the model compared to the data

demographics and the natural interest rate in the euro area abstract we investigate the impact of demographics on the natural rate of interest nri in the euro area with a particular focus on the role played by economic openness migrations and pension system design to this end we construct a life cycle model and calibrate it to match the life cycle profiles from hfcs data we show that population aging contributes significantly to the decline in the nri explaining about two thirds of its secular decline between 1985 and 2030 openness to international capital flows has not been important in driving the ea real interest rate as aging in europe has been similar to that in the rest of the world so far of two possible pension reforms only an increase in the retirement age can revert the downward trend on the equilibrium interest rate while a fall in the replacement rate would make the decline in nri even deeper the demographic pressure on the eurozone nri can be alleviated by increased immigration but only to a small extent and with a substantial lag

life cycle labour supply with human capital econometric and behavioural implications i examine econometric and behavioural implications of including human capital in the life cycle labour supply model with human capital the wage is no longer the price of time which is instead the wage plus returns to work experience this has important implications first labour supply elasticities become functions of both preference and wage process parameters one cannot estimate them separately second the data appear consistent with larger elasticities than prior work suggests third contrary to conventional wisdom permanent tax changes can have larger effects on current labour supply than temporary changes fourth effects of permanent tax changes grow over time

commodity tax competition between member states of a federation equilibrium and efficiency we first describe regional market equilibria whereupon consumers of each region allocate their purchases of private goods between domestic and nondomestic ones according to the structure of relative prices taxes and transportation costs next regional optimal tax levels and public good quantities are derived the tax of the other region being held constant fiscal competition arises from the ability of one region in choosing its tax to alter the tax base of the other

estimating life cycle labor supply tax effects we present an econometrically tractable life cycle labor supply model for panel data including intertemporally progressive taxes on uncertai wage and nonwge incomes our two stage fixedeffects generalized method of moments approach first extimates intretemporal and then intertemporal preferences specification testing domonstrates the value of incorporating joint progressive taxation of labor and nonlabor incomes results for prime age men emphasize the roles played by hourly wage endogeneity worker specific effects the measure of the rate of pay and intemporal budget constaint nonseparability simulations indicate that recent tax reform while not self financing stimulated made labor supplied by about 3 percent and reduced deadweight loss about 16 percent

meeting energy demand in a developing economy without damaging the environment a case study in sabah malaysia from technical environmental and economic perspectives abstract the challenges faced by the developing countries are unique in that they need to meet the increasing energy demands for their economic growths at a competitive price without damaging the environments in this paper a case study on the electricity demand issue in sabah malaysia is presented to investigate potential solutions in addressing this current need for a typical developing economy from the technical economical and environmental perspectives sabah one of the 13 states in malaysia is currently experiencing a serious power shortage especially at the east coast a 300 mw coal plant is proposed by the electricity utility company however the proposal has been rejected in the past several years due to the negative environmental impacts of the plant in this paper a number of alternative solutions were evaluated and proposed with respect to the viability of technologies financial return and minimum environmental impact in terms of ghg emission

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

the effects of health wealth and wages on labour supply and retirement behaviour this paper estimates a life cycle model of labour supply retirement and savings behaviour in which future health status and wages are uncertain individuals face a fixed cost of work and cannot borrow against future labour pension or social security income the method of simulated moments is used to match the life cycle profiles of labour force participation hours worked and assets that are estimated from the data to those that are generated by the model the model establishes that the tax structure of the social security system and pensions are key determinants of the high observed job exit rates at ages 62 and 65 removing the tax wedge embedded in the social security earnings test for individuals aged 65 and older would delay job exit by almost one year by contrast social security benefit levels health and borrowing constraints are less important determinants of job exit at older ages for example reducing social security benefits by 20 would cause workers to delay exit from the labour force by only three months

majority choice of tax systems in single and multi jurisdictional economies abstract we examine majority choice of tax instruments in an economy with heterogeneous households in our framework majority voting equilibrium exists despite the multidimensional policy choice set we examine single and multi jurisdictional economies we identify five competing incentives that influence choice of tax instruments equilibria generally entail a mixture of tax types with multiple jurisdictions strong reliance on head taxation in rich communities arises to deter poorer households from immigrating in spite of local incentives to use alternative tax instruments to redistribute wealth if relocation costs preclude inter community mobility the equilibrium tax system is fundamentally affected with redistribution incentives then dominating choice of instruments and tax rates limiting or eliminating head taxation fundamentally alters stratification public good provision levels and tax systems

bargaining between benevolent jurisdictions or when delegation induces inefficiencies this paper considers the problem of bargaining between benevolent jurisdictions about local public goods and head taxes it is shown that delegation to benevolent jurisdictions will in general induce distortions away from efficiency where efficiency means an efficient provision of local public goods and an efficient distribution of consumers this distortion is caused by 1 the divergence between social and jurisdictional objectives and 2 the impossibility for jurisdictions to realize side payments without modifying either the provision of local public goods or the distribution of consumers

labour supply in a two period model the effect of a nonlinear progressive income tax earlier studies of labour supply in a life cycle context have typically either neglected taxes completely or represented the income tax by a linear function the present paper studies how the qualitative conclusions of a traditional life cycle model of labour supply are changed when a nonlinear tax is introduced into the model it is shown that the comparative statics results and the characterization of the consumption and labour supply paths depend critically on whether capital and labour income are taxed jointly or separately and on the progressivity nonlinearity of the income tax few of the results valid for a linear income tax carry over to the nonlinear case

labour supply the roles of human capital and the extensive margin we specify and estimate a life cycle labour supply model that expands on earlier work by simultaneously including human capital accumulation saving and bequests an active extensive margin a realistic specification of the progressive tax structure and the social security system and an accounting for private pensions and health expenditures by incorporating all these features we develop new insights into how taxes affect life cycle labour supply for instance we find that labour supply elasticities vary in important ways with age education and the tax structure itself we also show how human capital affects elasticities differently on the intensive versus extensive margins

hours restrictions and labor supply the authors estimate a labor supply model that permits hours restrictions of a simple but general form each individual chooses from among a finite set of jobs drawn at random f rom a market distribution each offering a fixed quantity of hours the polar cases of no constraints on hours worked and exogenous hours ar e nested within the general case the authors results are consistent with a substantial amount of rationing in the work hours of a sample of low income men most of whom are working less than they would like copyright 1993 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association