the retirement behaviour of the self employed in britain we analyze the retirement behaviour of older self employed workers using a life cycle framework and a multinomial logit model of dynamic employment and retirement choices using data from the two wave retirement survey we find that greater actual or potential earnings decrease the probability of retirement among the self employed in contrast to employees none of gender health or family circumstances appear to affect self employed retirement decisions the dynamic analysis reveals that relatively few employees and virtually no retirees switch into self employment in later life the switches that do occur are motivated less by attempts to use self employment as a bridge job or stepping stone to full retirement than by self employment being a last resort for less affluent workers with job histories of weak attachment to the labour market we compare self employed and employee retirement behaviour and discuss the policy implications of our results

married women s retirement expectations do pensions and social security matter twenty five years ago married women s retirement decisions were strongly influenced by their husbands health and retirement status factors determining the value of women s nonmarket time in contrast their own economic opportunity set wages social security entitlements and employer pension benefits appeared to have little effect on their decisions to leave the labor force married women currently forming expectations regarding retirement differ in important ways from this earlier generation they have spent more time in the labor force earned higher wages and accumulated substantial pension rights both private and public they also have lower probabilities of remaining married in 1970 82 percent of u s women aged 45 54 were manried while 5 percent were divorced by 1992 only 73 percent were married while 16 percent were divorced thus husbands pension and social security benefits are less likely to provide economic security in retirement for the current generation of preretirement married women their expectations regarding retirement should reflect these changing conditions relative to earlier cohorts married women s retirernent plans should be more strongly influenced by considerations of their own economic returns from continued employment while of interest for its labor supply implications this issue is a matter of public concern because of growing evidence that divorce has wide ranging consequences for the economic well being of postretirement women william h crown et al 1993 findings from the new health and retirement survey indicate that older married women s expectations of working after age 62 are strongly influenced by their expected wage nonwage compensation such as employer provided health and disability insurance and pension income expected social security entitlements also appear important although the evidence for their effect is weaker like the earlier generation wives are also influenced by their husbands plans suggesting a tendency toward joint retirement

job exit behavior of older men a dynamic programming model of job exit behavior and retirement is constructed and estimated using the method of simulated moments the model and estimation method allow for both unobserved individual effects and unobserved job specific match effects the model is estimated using two different assumptions about individual discount factors first a static model with the discount factor equal to zero is estimated then a dynamic model with the discount factor equal to 95 is estimated in both models it is found that bad health age and lack of education increase the probability of retirement the dynamic model performs better than the static model and has different implications for retirement behavior the job specific effects are an important source of unobserved heterogeneity copyright 1991 by the econometric society

labor force dynamics of older married couples this article analyzes the dynamics of joint labor force behavior of older couples in the united states using the retirement history survey rhs i analyze the determinants of joint retirement and the effect of one spouse s labor force status on the labor force transitions of the other spouse the results reveal strong associations between the labor force transition probabilities of one spouse and the labor force status of the other spouse these result from structural differences in exit and entry behavior by the spouse s status several lagged endogenous variables have substantial effects on behavior even after controlling for unobserved heterogeneity

public pension programmes and the retirement of married couples in denmark in this paper we study the economic determinants of the joint retirement process of married couples we propose a tractable dynamic discrete choice model for retirement decisions which allows for non trivial saving behaviour we estimate the model on a 1 sample of danish couples of potential retirement age drawn from a population based administrative register the introduction and subsequent reforms of a publicly financed early retirement programme provide us with variation in the data to insure identification of the parameters of interest the elasticities of participation retirement with respect to income flows our estimates imply a significant asymmetry in the sensitivity of retirement behaviour of men and women with respect to variation in their own or their spouse s income flows

are spousal labor supplies substitutes evidence from the workweek reduction policy in china abstract we estimate the effects of spousal labor supply on individuals labor supply by using the implementation of china s 1994 1995 workweek reduction policy as a natural experiment we find that a decrease in the labor supply of wives significantly increased that of husbands but a decrease in the labor supply of husbands had an insignificantly negative effect on that of their wives furthermore a decrease in the labor supply of one spouse reduced the amount of time spent on housework by the other one our findings on the negative relationship between spousal labor supplies differ from those derived from data from developed countries we find evidence that different income levels may be the underlying reason

the new approach to wilderness preservation through benefit cost analysis over the last 15 years economists of resources for the future led by john krutilla have been developing a new approach to wilderness preservation this paper offers a concise exposition of their approach and adds a few new steps the basic ingredient of the new approach is a perception of declining net benefits of wilderness development and rising net benefits of wilderness preservation over time these alter the entire shape of the benefit cost analysis of potential development the new steps involve reversibility postponability and recognition of multiple interest rates

worktime regulations and spousal labor supply we study interdependencies in spousal labor supply by exploiting the design of the french workweek reduction which introduced exogenous variation in one s spouse s labor supply at constant earnings treated employees work on average two hours less per week husbands of treated women respond by reducing their labor supply by about half an hour consistent with substantial leisure complementarity and specifically cut the non usual component of their workweek leaving usual hours unchanged women s response to their husband s treatment is instead weak and rarely statistically significant possibly due to heavier constraints in the organization of their workweek

health insurance and retirement of married couples summary most health insurance in the usa is provided by employers until eligibility for public health insurance medicare begins at age 65 retiring before 65 exposes workers who lack retiree health insurance coverage to the risk of catastrophic medical expenditure we solve and estimate a dynamic model of the employment behavior of older married couples that includes risky medical expenditure and health insurance parameter estimates imply that the risk reducing feature of health insurance can account for about half of the observed association between retiree health insurance and employment for married men but can account for only one tenth of the much larger observed association for married women policy simulations imply very small effects on employment of changing the age of eligibility for medicare from 65 to 67 copyright 2006 john wiley sons ltd

wilderness development decisions and the krutilla fisher model the case of scotland s flow country this paper reports some results from an empirical study of wilderness management in the flow country of northern scotland the flow country is an area of extensive blanket bog characterized by extensive populations of internationally rare breeding birds and by a very distinctive landscape the principle threat to the area at present comes from large scale afforestation this activity is subsidized by the state through the forestry commission and yet seems likely to create irreversible external cost flows the economic efficiency of continued planting in the area is tested for using the krutilla fisher model preservation benefits accruing to both users and non users are estimated using contingent valuation

the effect of a wife s retirement on her husband s mental health this article examines the effect of wives retirement on their husband s mental health in australia by exploiting the exogenous variations in women s retirement induced by the age pension qualifyi

tax credits labour participation and home production in the netherlands we set up a dynamic reduced form model of labour market participation for women who balance career and motherhood the model accounts for the occurrence of future child birth and early retirement

reassessing the government s discount rate policy in light of new theory and data in a world economy with a high degree of capital mobility abstract the paper reexamines the government s discount rate policy in the context of new evidence on international capital mobility the relationship between deficits and interest rates the relationship between consumer interest rates and the consumer s rate of time preference and intergenerational compensation it concludes that the approximate discount rate for government decisions will differ depending on the policy problem and that the government s borrowing rate is appropriate in some cases and in others the private rate should be used for long term policies the benefit cost rationale for discounting breaks down and must be reestablished on principles incorporating intergenerational equity

structural models of family labor supply a discrete choice approach a static neoclassical structural model is presented explaining labor supply of both spouses in two adult households in the netherlands family preferences are described with a direct translog utility function with the husbands leisure the wifes leisure and family income as its arguments we assume that the choice set of each family is finite account is taken of the dutch tax and benefits system we allow for hours restrictions and random preferences and account for unobserved wages of nonworkers the models are estimated using smooth simulated maximum likelihood results based upon dutch cross section data from 1987 are illustrated by confidence intervals for elasticities and by several policy simulations excerpt

can social security explain trends in labor force participation of older men in the united states after a long decline the labor force participation rate lfpr of older men in the united states leveled off in the 1980s and began to increase in the late 1990s we examine how changes in social security rules affected these trends we attribute only a small portion of the decline from the 1960s 80s to the increasing generosity of social security over this period increases in the full retirement age and the delayed retirement credit explain one quarter to one half of the recent increase in the lfpr increasing educational attainment and increasing lfpr of married women also contributed to the recent rise

why have the labor force participation rates of older men increased since the mid 1990s this article seeks to explain the substantial increases in older men s labor force participation rates observed since the mid 1990s using data from the united states canada and the united kingdom i exploit the cohort effects driving recent increases in older women s participation rates to identify the effect of a wife s participation decision on her husband s participation decision i then decompose the changes in older married men s participation rates demonstrating that husbands responses to increases in wives participation in the labor force can explain one fourth one half and one third of the increase in the united states canada and the united kingdom respectively

labor force dynamics of older men this paper describes and analyzes movements of older men among labor force states in the united states using quarterly observations derived from the retirement history survey rhs the results indicate substantial undercounts in the biannual data indicating that the prevalence of labor force movements at older ages has been underestimated previously the results show that labor force dynamics at older ages are important including duration and spell occurrence dependence and work experience effects these effects are robust to nonparametric controls for unobserved heterogeneity the estimates indicate that social security benefits have strong effects on the timing of labor force transitions at older ages but that changes in social security benefit levels over time have not contributed much to the trend toward earlier labor force exit excerpt

understanding joint retirement abstract evidence from different sources shows that spouses retirement decisions are correlated retirement policies affecting individuals in couples are therefore also likely to affect behavior of their spouses it is therefore important to account for joint features in modeling retirement this paper studies a structural collective model of labor supply and retirement of both partners in a couple with interdependent preferences imperfect knowledge of preferences of the spouse and subjective expectations about the future we propose a novel method to estimate preferences and the intra household bargaining process which relies on stated preferences data collected in the health and retirement study respondents were asked to choose between hypothetical retirement trajectories describing the retirement ages and replacement rates of both spouses from three perspectives considering their own preferences only the preferences of their spouse only or the most likely decision for the household with these data all model parameters are identified and potential sources of joint retirement can be disentangled our results suggest that males misperceive their wives preferences overestimating their disutility of work our estimates correct for this we find strong positive correlations between preferences for joint leisure leisure complementarity of the two partners counterfactual simulations with stylized retirement paths suggest that the leisure complementarities explain a substantial part of joint retirement much more than correlation in unobserved heterogeneity or potential wage rates

should i stay or should i go an econometric analysis of retirement decisions by couples abstractthis article analyses retirement decisions from a household perspective treating the retirement timing of spouses as potentially interdependent choices to identify the determinants of ret

multivariate mixed proportional hazard modelling of the joint retirement of married couples we analyse the joint distribution of the durations until retirement of danish husbands and wives we estimate a multivariate mixed proportional hazards model that allows for interdependence in the times to retirement of spouses we find evidence of strong complementarities in leisure times symmetrically for husband and wife low own income and poor health are found to induce individual retirement prior to spouse s retirement whereas low spousal income is not and neither party is found likely to substitute own for purchased care when the spouse is in poor health furthermore high wealth and low income are found to spur joint simultaneous retirement copyright 2004 john wiley sons ltd

job search requirements for unemployed at the end of working life effects on unemployment dynamics and self employment probabilities this paper investigates the extent to which job search requirements in unemployment insurance u i increase the probability of self employment as a retirement route for causal identification we apply a difference in differences approach using a dutch 2004 policy reform that introduced job search requirements in u i for persons aged 57 5 and older unemployment dynamics and self employment probabilities are studied using a dynamic multinomial logit model with unobserved heterogeneity the results suggest that job search requirements stimulated people to exit unemployment and discouraged older workers to enter unemployment the probability of self employment as an exit route to retirement increased relative to u i but not relative to paid employment

efficiency and applicability of economic concepts dealing with environmental risk and ignorance abstract the paper examines the efficiency and applicability of various economic concepts dealing with environmental uncertainty their applicability is analysed by classifying environmental uncertainty according to different criteria using such a structure it can be shown that while the economic concepts are able to deal satisfactorily with some types of environmental uncertainty they are unable to deal with others adequately the analysis of efficiency distinguishes between environmental risk in which the decision maker is aware of the distribution function of the random variables and ignorance in which the decision maker does not know the relevant distribution functions the concept of a risk premium proposed by siebert the policy recommendation to promote integrated technologies and the environmental assurance bonding system developed by costanza and perrings are examined in terms of efficiency and applicability the analysis reveals the following i the application possibilities of the three concepts differ significantly ii a concept which concentrates on the reduction of risk may lead to an increase in ignorance iii while an economic concept may be efficient in the context of risk it can be inefficient when ignorance exists iv a trade off exists between the possibility to precisely state whether an economic concept is efficient and the scope of its applicability

a structural retirement model the life cycle model analyzed here constrains most work on the main job to be full time partial retirement entails a wage reduction and frequently a job change maximum likelihood estimates of utility function parameters are designed to incorporate information on the age of leaving full time work and the age of full retirement the model closely tracks retirement behavior including peaks in retirement activity at 62 and 65 the paper explores the relation of these peaks to nonlinearities in the budget constraint created by various retirement programs policy analyses based on this and on earlier models with simpler structures are compared the retirement choice is one of the more prominent manifestations of life cycle behavior the decision is the result of an interplay between an individual s preferences and a set of incentives which change in complicated ways as the individual progresses through his or her late 50 s and 60 s the purpose of this study is to formulate and estimate a structural model which incorporates in a fundamental way this interplay between lifetime preferences and incentives and to illustrate how such a model may be used to investigate retirement behavior a structural model of this type is essential for analyzing potential policy changes which can be expected to affect incentives in varying ways over a number of years in the life cycle the current study incorporates two structural features which have frequently been omitted from previous studies first the model requires that an individual who wishes to reduce work effort below full time must accept a reduced hourly wage rate in order to do so this reflects empirical evidence from micro data sets which indicates that around one third of older individuals engage in part time work at one time or another and that regardless of whether or not these older workers change jobs to obtain part time work they usually take wage cuts as compared to their previous full time work 2 the fact that an individual is willing to accept a lower wage rate in return for the opportunity to work fewer than full time hours contains important information about the preferences of the

social security and two earner households in the past decades elimination of the pay as you go system in u s has been extensively discussed and studied such an elimination would also eliminate the intra cohort redistribution done by the following policies of social security due to spousal and survivor s beneflt provisions the system redistributes mostly to single earner married households not necessarily progressive retirement beneflts are a concave function of past mean earnings hence the system redistributes from high earners to low earners finally the existence of a cap on social security taxable earnings makes the system regressive this is the flrst paper that quantifles redistributive labor supply and welfare implications of these policies using a general equilibrium life cycle model agents start out as permanently married or single and with education levels and wage proflles where the latter depend both on education and gender the household is the decision maker and decides on the labor supply of its member s and saving the aggregate production function has as inputs capital and labor aggregated by e ciency elimination of these policies results in a 6 1 increase in married female labor force participation rate the middle income single earner married households experience the largest welfare losses whereas the high income two earner households together with high income single households experience the largest welfare gains

income and outcomes a structural model of intrahousehold allocation there is evidence from several sources that one cannot treat many person households as a single decision maker if this is the case then factors such as the relative incomes of the household members may affect the final allocation decisions made by the household we develop a method of identifying how incomes affect outcomes given conventional family expenditure data the basic assumption we make is that household decision processes lead to efficient outcomes we apply our method to a sample of canadian couples with no children we find that the final allocations of expenditures on each partner depend significantly on their relative incomes and ages and on the level of lifetime wealth

how social security and medicare affect retirement behavior in a world of incomplete markets this paper provides an empirical analysis of how the u s social security and medicare insurance system affect the labor supply of older males in the presence of incomplete markets for loans annuities and health insurance we estimate a detailed dynamic programming dp model of the joint labor supply and social security acceptance decision focusing on a sample of males in the low to middle income brackets whose only pension is social security the dp model delivers a rich set of predictions about the dynamics of retirement behavior and comparisons of actual vs predicted behavior show that the dp model is able to account for wide variety of phenomena observed in the data including the pronounced peaks in the distribution of retirement ages at 62 and 65 the ages of early and normal eligibility for social security benefits respectively we identify a significant fraction of health insurance constrained individuals who have no form of retiree health insurance other than medicare and who can only obtain fairly priced private health insurance via their employer s group health plan the combination of significant individual risk aversion and a long tailed pareto distribution of health care expenditures implies that there is a significant security value for these individuals to remain employed until they are eligible for medicare coverage at age 65 overall our model suggests that a number of heretofore puzzling aspects of retirement behavior can be viewed as artifacts of particular details of the social security rules whose incentive effects are especially strong for lower income individuals and those who do not have access to fairly priced loans annuities and health insurance

back to work expectations and realizations of work after retirement this paper analyzes a puzzling aspect of retirement behavior known as unretirement nearly 50 percent of retirees follow a nontraditional retirement path that involves partial retirement or unretirement and at least 26 percent of retirees later unretire i explore two possible explanations 1 unretirement transitions result from failures in planning or financial shocks and 2 unretirement transitions are anticipated prior to retirement reflecting a more complex retirement process i show that unretirement was anticipated for the vast majority of those returning to work and is not a result of financial shocks poor planning or low wealth accumulation

retirement behaviour of dutch elderly households we specify and estimate retirement models for singles and married couples and estimate these on data from the dutch socio economic panel we perform some simulations and find strong effects of retirement options in determining the retirement behaviour within different household types model estimates are used to simulate the effect of relevant retirement policies across subgroups we find that the disadvantageous treatment of the old age pension in the netherlands for married households with two earners has unintended perverse effects on the labour market behaviour of couples copyright 2004 john wiley sons ltd