labour supply specification and the evaluation of tax reforms this paper investigates the practical importance of the functional specification of labour supply equations for the analysis of tax benefit reform we consider two labour supply specifications one derived from stone geary preferences and the other from a generalisation that relaxes some of the more critical restrictions in that model we use these equations to contrast the effects of two reforms to the u k income tax system one involves income effects almost exclusively while the other implies a significant number of large increases in marginal tax rates

whether crop diversification is energy efficient an empirical analysis from bangladesh abstract this study examines whether crop diversification provides economy in energy use and improves technical energy efficiency using a large survey data of 2075 farms from 20 sub districts of 17 districts in bangladesh by applying a stochastic input distance function approach the results reveal that cereal production significantly increases energy use by 0 14 for every one percent increase in output renewable source of energy constitutes 59 6 of total inputs and labour energy alone constitutes 39 significant output complementarity exists between cereal and oilseed enterprises but competition exist between jute with pulse and or oilseed enterprises the mean technical energy efficiency is estimated at 68 implying that energy output can be increased by 32 by eliminating inefficiency diversification amongst enterprises is associated with energy inefficiency implying that specialization into cereals improves efficiency large farms are inefficient whereas large family size improves efficiency the key policy implication is that diversification of crop enterprises must maintain cereal i e rice wheat maize as the main base and then add non cereal crops e g oilseeds in order to improve energy economy also diversification within cereals from rice monoculture to wheat and or maize will significantly improve technical energy efficiency

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

willingness to pay and the distribution of risk and wealth willingness to pay wtp most economists believe is an appropriate benefits metric for government expenditure and regulatory policies that reduce risks to human life it depends however on the distribution of risk and wealth currently society s expenditures overemphasize concentrated risks say after the fact treatment as opposed to prevention a dead anyway effect complements excess attention to intense interests in explaining this our normative criterion for spending on risk reduction is what a rational albeit uninsured individual confronting lotteries on future risks to life and wealth would choose for himself this requires correcting wtp to eliminate the dead anyway effect but continues to reflect that wealth enhances the utility of living

economies of size and scope in rural low volume roads evidence on cost savings from reorganizing township low volume rural road systems into larger units is presented in this study of technical efficiencies in producing local government services data is from a sample of midwestern townships heterogeneity of surface types is accounted for by specifying a multiple output translog cost function examination of economies of size suggests that cost savings could be realized by reorganizing townships into larger units the presence of economies of scope suggests that jurisdictions should not specialize in maintenance responsibilities due to the joint use of inputs

whether crop diversification is a desired strategy for agricultural growth in bangladesh abstract this study aimed at examining the merit of crop diversification as a strategy for agricultural growth in bangladesh specifically the existence of economies of diversification scale economies and diversification efficiencies at the farm level were examined using a stochastic input distance function approach the results reveal strong evidence of diversification economies amongst most crop enterprises except the combination of modern rice and modern wheat enterprises ray economies of scale exist in bangladeshi cropping system also significant are efficiency gains made from diversification among cropping enterprises the key policy implication is that crop diversification should be a desired strategy for agricultural growth in bangladesh development of the rural infrastructure is also essential as this will not only improve technical efficiency but may also synergistically promote crop diversification by opening up opportunities for technology diffusion marketing storage and resource supplies

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

economists and the welfare state abstract this paper constrasts the views of the welfare state of economists in the 1940s and 1950s with those of the current generation it is argued that economists as a profession in particular in the scandinavian countries have changed from being strong spokesmen for the welfare state to becoming much more critical the reasons for this are sought both in the expansion of the public sector in recent decades and in the development of economic theory in the areas of public finance insurance and incentives and public choice an attempt is made to evaluate the importance of the empirical and theoretical developments for the changing views of the welfare state

spatial allocation and the shadow pricing of product characteristics abstract the paper considers an industry transforming primary commodities farm products into processed commodities food products it focuses on the allocation of embedded characteristics carbohydrate protein etc both across space and among commodities the approach generates a spatial competitive market equilibrium of production consumption transformation and trade for both primary and processed commodities along with the spatial distribution of shadow prices for the product characteristics the model provides a basis for analyzing the allocation and pricing of agricultural products food products and characteristics in spatial markets the empirical usefulness of the model is illustrated in the context of regional resource allocation in the u s dairy sector

the effect of taxes on male and female labor supply in sweden this paper estimates labor supply functions for married men and women in sweden using data from 1980 taking account of the complete form of individuals budget constraints both linear and quadratic supply functions are estimated with and without random preferences a novel feature is that for women the wage rate and labor supply functions are estimated simultaneously using a full information maximum likelihood method this method yields substantially larger wage and income elasticities than does the previously used two step methods another result is that the quadratic supply function wage elasticities for men and women are virtually the same if the elasticities are evaluated at the same net wage rate and hours of work for men and women the estimated functions are used to calculate the effect of tax reforms

a dual measure of economies of scope a derivative based measure of economies of scope is obtained by exploiting the duality between the shadow cost function and the input distance function this is a useful measure when the econometric estimation of a cost function is not viable

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

on the marginal welfare cost of taxation this paper develops a rigorous partial equilibrium analysis of the determinants of margin al welfare cost mwc of taxes on labor earnings it shows that four key parameters interact to determine the magnitude of mwc using aggregate data and plausible ranges of values for the parameters mwc can vary from under 10 percent to more than 300 percent of marginal tax revenue intermediate parameter values sugge st mwc is in the 25 50 percent range however the more extreme estimates cannot be ruled out on the basis of available evidence suggesting that mwc cannot yet be copyright 1987 by american economic association

exact consumer s surplus and deadweight loss consumer s surplus is a widely used tool in applied welfare economics both economic theorists and cost benefit analysis often use consumer s surplus despite its somewhat dubious reputation the basic idea is to evaluate the value to a consumer or his willingness to pay for a change in price of a good from say pricep to pricep because price changes affect consumer welfare an evaluation of this effect is often a key input to public policy decisions yet consumer s surplus is probably the most controversial of widely used economic concepts both paul samuelson and ian little conclude that the economics profession would be better off without it it is my feeling of the situation that substantial agreement exists on the correct quantities to be measured the amount the consumer would pay or would need to be paid to be just as well off after the price change as he was before the price change the quantities correspond to john hicks compensating variation measures an alternative measure which takes ex post price change utility as the basis of comparison is hicks equivalent variation the controversy arises in the measurement of these quantities the usual measurement procedure is to use the area to the left of the marshallian market demand curve between two price levels jules dupuit originated this measure of welfare change and alfred marshall and hicks derived appropriate conditions for its use the primary condition for the area to the left of the demand curve to correspond to the compensating variation is to have constant marginal utility of income marshall gave this condition and if it holds the same quantity will be derived as the area to the left of the compensated hicksian demand curve this area to the left of the compensated demand curve is exactly what the compensating variation and equivalent variation measure thus the constant marginal utility of income is a sufficient condition for marshallian consumer s surplus to be equal to hicks consumer s surplus in this case arnold harberger s plea to use the welfare triangle as one half times the product of the price change times the quantity change to measure deadweight loss corresponds to the correct theoretical amount of welfare change in a recent paper robert willig derives bounds for the percentage difference between the correct measure of either the compensating or equivalent variation and the marshallian measure derived form the market demand curve his bounds which depend on the income elasticity of demand for the single good in the region of price change being considered as well as the proportion of the consumer s income spent on the good demonstrate that the marshallian consumer s surplus is often a good approximation to hicks consumer s surplus the fact that the proportion of the consumer s income spent matters as well as the income elasticity was first pointed out by harold hotelling willig contends that the approximation error will be less than the errors involved in estimating the demand curve thus he hopes to remove the need for apology that applied economists often need to give to theorists who remark on the inappropriateness of using marshallian consumer s surplus to measure welfare change however in this paper i show that for the case primarily considered by willig of a single price change which is also the situation in which consumer s surplus is often used in applied work no approximation is necessary professor of economics massachusetts institute of technology and research associate national bureau of economic research i would like to thank peter diamond erwin diewert daniel mcfadden robert merton robert solow hal varian joel yellin and the referees for help and comments research support from the national science foundation is acknowledged the reason that we still have two rather than one of samuelson s six measures of consumer s surplus arises from an index number problem of the correct basis for the welfare comparison i will give both measures but plan to concentrate on the compensating variation

scope economies and technical efficiency of cocoa agroforesty systems in ghana a number of studies have addressed issues relating to the physiological environmental and economic values of trees in cocoa farming systems however to date little has been done to quantitatively examine the effect of crop diversity on cocoa farming efficiency this study therefore sets out to first investigate whether and to what extent crop diversity defined as the mixing of cocoa with other crop species on farmers plots affects productivity on cocoa farms secondly it sought to establish whether there are economies of scope i e cost complementarities from the sharing of farm inputs by crops on the same plots our results indicate that diversified i e multi crop cocoa farms are more efficient than single i e mono crop farms furthermore our estimate for the economies of scope parameter indicates possibilities for cost complementarities between production of cocoa and other crops on the same plot we advocate further investigation on the issue of scope economies to determine which crop combinations offer better cost complementarities and also meet biodiversity conservation objectives

participation and hours of work two stages in the life cycle of married women abstract a 1979 cross section of dutch households is used to estimate an integrated labor force participation and hours of work labor supply model for women young women and older women are found to behave differently wage and income elasticities are always higher for older than for younger women in absolute terms and the relative importance of participation and hours elasticities is reversed as the average woman grows older thereby implying that younger women tend to be more preoccupied with the participation decision whereas older women are more concerned with the hours decision econometrically the paper builds on heckman s 1974 participation cum hours model by adapting the estimation method to allow for the fact that hours worked are only observed in intervals a maximum likelihood model in which we integrate over parts of the hours distribution is used this technique though computationally involved gave satisfying results we compare the results with estimates of a similar but much simpler probit model to identify the possible biases in the simpler approach

theoretical and practical arguments for modeling labor supply as a choice among latent jobs models of labor supply derived from stochastic utility representations and discretized sets of feasible hours of work have gained popularity because they are more practical than standard approaches based on marginal calculus in this paper we argue that practicality is not the only feature that can be addressed by means of stochastic choice theory this theory also offers a powerful framework for developing a more realistic model for labor supply choices founded on individuals having preferences over jobs and facing restrictions on the choice of jobs and hours of work we discuss and clarify how this modeling framework deviates from both the conventional discrete approach van soest 1995 as well as the standard textbook approach based on marginal calculus hausman 1985 we furthermore discuss how the model based on job choice offers the possibility of conducting a richer set of simulations of alternative policies

agricultural technology crop income and poverty alleviation in uganda summary this paper evaluates the ex post impact of adopting improved groundnut varieties on crop income and poverty in rural uganda the study utilizes cross sectional data of 927 households collected in 2006 from seven districts in uganda using propensity score matching methods we find that adopting improved groundnut varieties technology significantly increases crop income and reduces poverty the positive and significant impact on crop income is consistent with the perceived role of new agricultural technologies in reducing rural poverty through increased farm household income this study supports broader investment in agriculture research to address vital development challenges reaching the poor with better technologies however requires policy support for improving extension efforts access to seeds and market outlets that simulate adoption

compensating variation and hicksian choice probabilities in random utility models that are nonlinear in income in this paper we discuss hicksian demand and compensating variation in the context of discrete choice we first derive hicksian choice probabilities and the distribution of the random expenditure function in the general case when the utilities are nonlinear in income we subsequently derive exact and simple formulae for the expenditure and choice probabilities under price policy changes conditional on the initial utility level this is of particular interest for welfare measurement because it enables the researcher to compute the distribution of compensating variation in a simple way we also derive formulae for the joint distribution of expenditure the choice before and after a policy change has been introduced

family labor supply with taxes over the period 1960 1983 the proportion of federal tax revenue raised by taxation of labor supply has risen from 57 77 percent in this paper we specify and estimate a model of family labor supply which treats both federal and state taxation husbands and wives labor supply are treated jointly rather than in aseparate manner as in previous research a method to calculate the virtual wage for nonworking spouses is used within a utility maximizing framework to treat correctly the joint family labor supply decision joint family efforts are found to be important the efficiency cost deadweight loss of labor taxation is estimated to be 29 6 of tax revenue raised the effect of the new 10 deduction to ease the marriage tax for working spouses leads to a prediction of 3 8 increase in wives labor supply and a 9 decrease in husbands labor supply overall taxes paid are predicted to decrease by 3 4 this abstract was borrowed from another version of this item

anti social welfare functions a reply to hansen et al we could reasonably expect society to give at least the same weight to the marginal utility of the poor as to the rich and to the marginal utility of the ill as compared to the healthy whilst hansen et al journal of health economics 2004 may be said to link cea and cba within a welfarist framework the assumptions they require are inconsistent with these types of ethical preferences thus the degree to which they employ a reasonable social welfare function is doubtful this paper argues that any link between cea and cba will occur not within a welfarist framework but instead within a non welfarist one in which it is unlikely that cba results could be easily transformed into cost effectiveness ratios

on the economic foundations of cea ladies and gentlemen take your positions abstract there are still many ongoing debates about several aspects of the methodology of economic evaluations of health care interventions some of the disparities in recommendations on methodological issues may be traced back to different viewpoints on cost effectiveness analysis cea in general two important views are the welfarist approach which aims at embedding cea into traditional welfare economics and the decision maker s approach which takes a broader and more pragmatic view on cea the focus in welfarism may be on utility while that of the decision maker s approach may be considered to be on health in this paper it is examined how these two views differ and how these differences may subsequently lead to debates in methodological areas it is indicated that embedding the practical operationalisation of cea in welfare economics seems impossible in a strict welfarist approach it is necessary to view qalys as being utilities although one may question whether such an approach to qalys is appropriate also equity considerations may play an important role in cost effectiveness analysis and these should preferably be taken into account in a way that reflects societal attitudes towards an equitable distribution of health care these equity considerations may not always be directly related to utility or efficiency furthermore both camps may prefer different methods for cost measurement in areas such as productivity costs and informal care a better recognition of the contents and origins of controversies and disputes may enhance the clarity of discussions

multi family households in a labour supply model a calibration method with application to poland models of cooperative and noncooperative behaviour opened the household black box and allowed for individual treatment of partners in couples however labour supply literature has so far largely ignored a broader issue the distinction of single versus multi family complex households we propose a method to account for multi family household structure by borrowing from recent applications of the collective model to identify the degree of sharing we assume that each household is characterized by a between family sharing parameter which is calibrated on estimated preferences observed labour market status and other characteristics we apply the method to polish labour market data

wtp and qaly based approaches to valuing health for policy common ground and disputed territory this paper discusses links between two approaches to the value of health the willingness to pay approach of environmental economics and the quality adjusted life year approach of health economics the approaches are used in cost benefit and cost effectiveness analyses of health interventions despite fundamental differences in the decision contexts and conceptual foundations of the two approaches in current practice they are likely to lead to similar policy decisions the paper also shows how research on the quality adjusted life year qaly can be used to fill in gaps in the willingness to pay literature the paper sketches a simple model that shows how to qaly fy the value of a statistical life i e how to combine qaly estimates with estimates of the value of a statistical life to estimate willingness to pay for morbidity risks

on the possibility of a bridge between cba and cea comments on a paper by dolan and edlin in a recent work by dolan and edlin it is concluded that no link can be established between cost benefit analysis cba and cost effectiveness analysis cea however the conclusion seems to depend rather heavily on what is understood by a link between cba and cea as well as on the exact meaning of the latter two terms we argue that there is at least one approach to cba and cea in which the two are very intimately linked on the other hand the limitations in the access to preference information has consequences for the kind of questions that can be meaningfully addressed in both cba and cea

on the aggregation of health status measures in the present paper we address the problem of finding conditions under which aggregation of individual health status measurements e g qalys is meaningful in the sense that there is a universal unit of measurement for health the problem is studied in a model where different aspects of health take the form of lancasterian characteristics to be produced by the individuals using commodities obtained in the market for a meaningful unit of measurement to exist marginal rates of substitution between different aspects of health should not differ among individuals and for this to happen in an equilibrium of the economy considered certain assumptions of separability of technology and or preferences must be satisfied this means that universal measures of health will be meaningful only if there are not too many spillovers in achieving different aspects of health

labor supply as a choice among latent jobs unobserved heterogeneity and identification this paper discusses aspects of a framework for modeling labor supply where the notion of job choice is fundamental in this framework workers are assumed to have preferences over latent job opportunities belonging to worker specific choice sets from which they choose their preferred job the observed hours of work and wage is interpreted as the job specific hours and wage of the chosen job the main contribution of this paper is an analysis of the identification problem of this framework under various conditions when conventional cross section micro data are applied

is it really possible to build a bridge between cost benefit analysis and cost effectiveness analysis cost benefit analysis cba is a recognised as the economic evaluation technique that accords most with the underlying principles of standard welfare economic theory however due to problems associated with the technique economists evaluating resources allocation decisions in health care have most often used cost effective analysis cea in which health benefits are expressed in non monetary units as a result attempts have been made to build a welfare economic bridge between cost benefit analysis cba and cost effectiveness analysis cea in this paper we develops these attempts and finds that while assumptions can be made to facilitate a constant willingness to pay per unit of health outcome these restrictions are highly unrealistic we develop an impossibility theorem that shows it is not possible to link cba and cea if i the axioms of expected utility theory hold ii the quality adjusted life year qaly model is valid in a welfare economic sense and iii illness affects the ability to enjoy consumption we conclude that within a welfare economic framework it would be unwise to rely on a link between cba and cea in economic evaluations

life cycle preferences over consumption and health when is cost effectiveness analysis equivalent to cost benefit analysis this paper studies life cycle preferences over consumption and health status we show that cost effectiveness analysis is consistent with cost benefit analysis if the lifetime utility function is additive over time multiplicative in the utility of consumption and the utility of health status and if the utility of consumption is constant over time we derive the conditions under which the lifetime utility function takes this form both under expected utility theory and under rank dependent utility theory which is currently the most important nonexpected utility theory if cost effectiveness analysis is consistent with cost benefit analysis it is possible to derive tractable expressions for the willingness to pay for quality adjusted life years qalys the willingness to pay for qalys depends on wealth remaining life expectancy health status and the possibilities for intertemporal substitution of consumption

marital sorting inequality and the role of female labor supply evidence from east and west germany this paper examines to what extent marital sorting affects cross sectional earnings inequality in germany over the past three decades while explicitly taking into account labor supply choices using rich micro data the observed distribution of couples earnings is compared to a counterfactual of randomly matched spouses hypothetical earnings are predicted based on a structural model of household labor supply for west germany a positive effect of marital sorting on inequality is found after adjusting for labor supply behavior while the effect is limited when earnings are taken as given this means that there is positive sorting in earnings potential which is veiled by relatively low female labor force participation in east germany the impact of marital sorting on inequality is highly disequalizing irrespective of adjusting for labor supply choices this is mainly due to the fact that east german women are much more attached to the labor market

lower tax progression longer hours and higher wages the impact of tax reforms that decrease income tax progression is analysed in an equilibrium search model with wage bargaining and endogenous individual working hours working hours are either bargained together with the hourly wage case 1 or determined solely by workers after bargaining over the wage case 2 in both cases reducing tax progression increases working hours of employed and more interestingly unambiguously increases wages and unemployment wages and unemployment rise more and working hours and production less in case 1 compared to case 2 probably making case 2 countries best suited for such tax reforms

diversification economies and specialisation efficiencies in a mixed food and coffee smallholder farming system in papua new guinea smallholder farming systems in papua new guinea are characterised by an integrated set of cash cropping and subsistence food cropping activities in the highlands provinces the subsistence food crop sub system is dominated by sweet potato production coffee dominates the cash cropping sub system but a limited number of food crops are also grown for cash sale the dynamics between sub systems can influence the scope for complementarity between and technical efficiency of their operations especially in light of the seasonality of demand for household labour and management inputs within the farming system a crucial element of these dynamic processes is diversification into commercial agricultural production which can influence factor productivity and the efficiency of crop production where smallholders maintain a strong production base in subsistence foods in this study we use survey data from households engaged in coffee and food crop production in the benabena district of eastern highlands province to derive technical efficiency indices for each household over two years a stochastic input distance function approach is used to establish whether diversification economies exist and whether specialisation in coffee subsistence food or cash food production significantly influences technical efficiency on the sampled smallholdings diversification economies are weakly evident between subsistence food production and both coffee and cash food production but diseconomies of diversification are discerned between coffee and cash food production a number of factors are tested for their effects on technical efficiency significant technical efficiency gains are made from diversification among broad cropping enterprises

the normative economics of health care finance and provision whereas in many countries the crisis in medical care has been seen in terms of excess spending on health services in the uk it has been seen at least by most of those who manage and work in the nhs as a crisis of underfunding this has come about as the result of the government s successful attempts to restrain the rate of growth of real spending on the nhs which in turn reflects the government s belief that its principal effective weapon against what it perceives to be inefficiency in the nhs is to challenge management itself reformed and to some extent liberated by systematic financial squeezes the same concern has given rise to a host of proposals for reform of the nhs most of which involve a much greater role for private insurance private finance of other kinds such as out of pocket payments and private provision of health care itself

productive efficiency of specialty and conventional coffee farmers in costa rica accounting for technological heterogeneity and self selection a steep decline in coffee prices at the producer level led to considerable pressure for farmers in costa rica and producer countries all over the world one possible reaction was moving to specialty markets where price pressure was perceived to be lower we use original survey data from 2002 2003 and 2003 2004 to analyze the factors influencing participation in specialty markets and to estimate separate production functions for specialty and conventional coffee farmers allowing for farm specific inefficiencies applying a sample selection framework we find significant selection bias in the sub sample of specialty farmers and evidence for the overestimation of efficiency if this bias is not adequately controlled for among the most important factors that influence farm specific efficiency levels in the two sub samples are the availability of additional income activities experience in coffee cultivation and membership in cooperatives based on the results we derive policy recommendations to improve farmers production performance and ability to cope with the effects of the coffee crisis these policy measures include the provision of extension services with respect to farm management skills the creation of income opportunities in rural areas and the support of farmer owned cooperatives

improving the efficiency targeting of malawi s farm input subsidy programme big pain small gain abstract the farm input subsidy programme fisp in malawi was introduced in the 2005 2006 season against a background of bad weather affecting production and prolonged food shortages vouchers are distributed empowering eligible farmers to exchange them for fixed quantities of inputs at subsidized prices since its inception there has been a debate at national level about whether the fisp s potential has been fully exploited with policy makers exploring options to improve the programme proposals include targeting efficient and productive farmers to maximize returns in this paper we evaluate the effectiveness of these proposed changes to the existing fisp design by utilizing two waves of the lsms isa survey merged with climatic data we estimate how the national demand for agricultural inputs varies according to a variation in the targeting criteria by means of a two stage demand system then we identify more efficient farmers by means of a stochastic frontier approach we observe a mismatch between voucher recipients and efficiency with approximately 60 of vouchers being allocated to the three bottom quintiles of efficiency this mismatch is observed also at the spatial level with more vouchers going to districts characterized by less efficient production while concerns on the distributional impacts of the new criteria are discussed together with some suggestions for spatially diversifying the structuring of the policy and incentivizing crop diversification our results highlight a high substitutability of commercial with subsidized inputs by new eligible farmers consequently simulating the targeting policy variation we obtain an outcome that would lead only to a limited increases in predicted food expenditure ranging from 0 27 to 0 8 and maize production from 0 2 to 1 3 scope for analysing different adjustments in the functioning of fisp are thus proposed to policy makers

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

sectoral labour supply choice restrictions and functional form this is the authors submitted article version which is the pre peer reviewed version of the article the article changed title in the peer reviewing process from analyzing labor supply behavior with latent job opportunity sets and institutional choice constraints later published as discussion paper no 399 http brage bibsys no ssb handle urn nbn no bibsys brage 21006