are public sector workers more risk averse than private sector workers available evidence suggests that stability of employment is greater in the public sector than in the private sector the value that individuals place on tbis stability depends on tbe individual s degree of risk aversion economic reasoning suggests tbat otber tbings equal tbose individuals witb a high degree of aversion to risk will be more likely tban otbers to seek employment in the public sector this paper tests tbat hypothesis tbrougb tbe use of probit analysis and a measure of risk aversion developed in ibe university of micbigan s panel study of income dynamics the results tend to confirm tbe bypotbesis implying tbat a policy of intersectoral equality of pay for comparable jobs would result inanexcesssupplyof workers to tbe public sector

dynamics of health and labor market risks while there is little doubt that the probability of poor health increases with age and that less healthy people face a more difficult situation on the labor market the precise relationship between facing the risks of health deterioration and labor market instability is not well understood using 12 years of data from the german socio economic panel we study the nature of the relationship between poor health and non employment on a sample of german men aged 30 59 we propose a joint model of health and labor market risks which identifies the mechanism through which poor health contributes to the probability of being jobless and vice versa we find an important role of unobserved heterogeneity and evidence for correlation in the unobservable characteristics determining the two processes the results also show strong persistence in the dynamics of health and labor market risks

financial incentives and retirement evidence from federal civil service workers we examine the retirement behavior of federal civil service workers employed by the department of defense these workers provide an interesting population for studying retirement because they face relatively simple financial incentives high quality administrative data are available and they are not covered by the social security system we find that these workers respond to their financial incentives in a similar manner to what others have found when analyzing much different retirement systems we also find no evidence of excess retirement at key ages of the social security system which does not support the existence of societal wide norms regarding retirement

industry competitiveness using herfindahl and entropy concentration indices with firm market capitalization data while previous studies of industry concentration have traditionally utilized sales or market share data no studies that we are aware of have been done with market capitalization data if the markets are successful at valuing a firm s current and future prospects it can be argued that concentration indices and other metrics based on the market value of the firms in an industry should be a good proxy for market power within an industry this study presents a study of the market concentration using the herfindahl and entropy concentration indices for 13 industries

the dynamics of job separation the case of federal employees summary in this paper we develop a model of workers quit decisions using panel data on a sample of us federal government employees we use maximum likelihood techniques to determine how much of the observed decline in quits with job tenure is a result of declining individual quit propensities state dependence rather than dynamic sample self selection heterogeneity the latter is found to be much more important than the former the effects of relative federal government wages and other variables on quits are also estimated the results are useful for analysing federal compensation policies

on the origins of entrepreneurship evidence from sibling correlations we assess the broad importance of family and community background for entrepreneurship outcomes we go beyond traditional intergenerational associations by estimating sibling correlations in unincorporated and incorporated entrepreneurship using register data from sweden sibling correlations range from 20 to 50 they are consistently higher for more committed and incorporated entrepreneurship than for less committed or unincorporated entrepreneurship they are also higher for brothers than sisters we then assess what factors drive these correlations parental entrepreneurship neighborhoods shared genes and financial resources help explain these high correlations whereas immigration status family structure and sibling peer effects have a limited contribution the higher correlation for incorporated versus unincorporated entrepreneurship is explained mainly by the type of parental entrepreneurial engagement and financial resources while the gap between brother and sister correlations in unincorporated entrepreneurship is largely driven by the geographic concentration of male dominated industries

the economic consequences of unwed motherhood using twin births as a natural experiment social scientists have long concluded that premarital childbearing exacerbates problems of both poverty and family instability out of wedlock and adolescent childbearing may reduce a mothers educational attainment lower the probability of her eventual marriage increase her probability of welfare recipiency and decrease family income the authors use an exogenous fertility event the birth of twins to estimate the economic effects of unplanned births the approach compares the economic outcomes of women experiencing premarital twin first births to those experiencing premarital single first births in the attempt to identify the consequences of an unplanned birth upon womens future fertility and marital decisions education labor force participation labor earnings welfare receipt and poverty status 1970 and 1980 us census micro data are used to identify twin births to unmarried women analysis found large short term effects of unplanned births on labor force participation poverty and welfare recipiency among unwed mothers but not among married mothers furthermore most adverse economic effects of unplanned motherhood dissipate over time for whites but larger and more persistent negative effects weigh upon black unwed mothers

estimation of the us federal job queue in the presence of an endogenous union queue past research on the federal sector job queue fails to incorporate the important role of unioniz ation we estimate a two stage bivariate probit in which the willingness of a worker to queue for a union job enters the estimation of the federal queue we demonstrate that the failture to implement our approach may lead to the inappropriate conclusion that there does not exist a federal queue in the us labour market we identify the characteristics that lead workers to seek employment in the federal sector and as a byproduct also provide independent confirm ation of the presence of a queue for union jobs ability in bivariate probit models to examine job queues abowd and farber 1982 use poirier s technique and find evidence of a queue of workers waiting for union jobs they estimate separate equations determining which character istics make a worker more likely to enter the queue and which characteristics make a worker more likely to be chosen from the queue indeed farber 1983 leigh 1985 and heywood 1990 have all reaffirmed the existence of a union queue under varying degrees of partial observability recently venti 1987 krueger 1988 and heywood and mohanty 1990 have examined whether or not a queue exists for federal government jobs while this research confirms the existence of a federal queue it fails to incorporate the earlier research indicating the presence of a union queue indeed none of the authors controls for any dimension of unionization in the federal queue esti mates this failure is problematic for several related reasons first heywood and mohanty 1994 demonstrate that statistical confirmation of a federal job queue is highly sensitive to specification particularly the inclusion or exclusion of specific variables 2 second the federal sector is far more heavily unionized than the private sector see freeman 1986 1988 ichniowski 1988 and reder 1988 thus if the earlier research is correct and workers do queue for union

network location and learning the influence of network resources and firm capabilities on alliance formation this paper presents a dynamic firm level study of the role of network resources in determining alliance formation such resources inhere not so much within the firm but reside in the interfirm networks in which firms are placed data from extensive fieldwork show that by influencing the extent to which firms have access to information about potential partners such resources are an important catalyst for new alliances especially because alliances entail considerable hazards this study also assesses the importance of firms capabilities with alliance formation and material resources as determinants of their alliance decisions i test this dynamic framework and its hypotheses about the role of time varying network resources and firm capabilities with comprehensive longitudinal multi industry data on the formation of strategic alliances by a panel of firms between 1970 and 1989 the results confirm field observations that accumulated network resources arising from firm participation in the network of accumulated prior alliances are influential in firms decisions to enter into new alliances this study highlights the importance of network resources that firms derive from their embeddedness in networks for explaining their strategic behavior copyright 1999 john wiley sons ltd

a reexamination of the federal private wage differential in the united states the federal private wage differential is reexamined with recent data using specifications similar to those used in three previous studies i find that the federal private wage differential has narrowed since the 1974 79 period analyzed in those studies in addition i discover that wage differentials based on specifications used in the literature are biased upward because the previous studies did not control for detailed occupational and locational characteristics of workers corrected point estimates of the wage gap are much smaller than previous estimates in the literature differences in the gap across demographic groups occupations and locations are also discussed

assessing equitable health financing for universal health coverage a case study of south africa abstractthis article argues that an assessment of progressivity over time can provide an indication of progress towards a more progressive or a less regressive health financing system and can be useful to policymakers it introduces a framework to characterize shifts in progressivity in health financing between two time periods using the popularly known kakwani index of progressivity and other associated indices it also decomposes the shifts in progressivity into the relative contributions of the changes in income distribution and the changes in the distribution of health payments further it proposes graphics that statistically analyses how the shifts in progressivity vary along the distribution of income a pro poor pro rich shift implies that the health financing mechanism is becoming more less progressive or less more regressive between two time periods a proportional shift means that progressivity is constant between the two periods this framework is applied to nationally represen

children and their parents labor supply evidence from exogenous variation in family size although theoretical models of labor supply and the family are well developed there are few credible estimates of key empirical relationships in the work family nexus this study uses a new instrumental variable the sex composition of the first two births in families with at least two children to estimate the effect of additional children on parents labor supply in the united states instrumental variables estimates using the sex mix are substantial but smaller than the corresponding ordinary least squares ols estimates moreover unlike the ols estimates the female labor supply effects estimated using sex mix instruments appear to be absent among more educated women and women with high wage husbands we also find that married women who have a third child reduce their labor supply by as much as women in the full sample while there is no relationship between wives child bearing and husbands labor supply excerpt

progressivity horizontal inequality and reranking caused by health system financing a decomposition analysis for switzerland abstract this paper presents an application of the duclos et al duclos j y jalbert v araar a 2003 classical horizontal inequity and reranking an integrated approach research on economic inequality 10 65 100 decomposition to an analysis of the 1998 swiss health system financing we see that in addition to measuring horizontal inequality in the classical sense this decomposition is more efficient and flexible than earlier ones it is also pointed out that methods involving a nonparametric estimation lead to asymptotically biased vertical and horizontal effects a procedure to estimate this bias is given finally it is shown that despite a major reform health system financing is still very regressive and social health insurance is more regressive than direct financing

an empirical analysis of life cycle fertility and female labor supply this paper examines us household fertility and female labor supply over the life cycle using data from the panel study of income dynamics the authors investigate how maternal time inputs and market expenditures on offspring as well as the benefits they yield their parents vary with ages of offspring and influence female labor supply and contraceptive behavior the econometric framework combines a female labor supply model and a contraceptive choice index function it also accounts for the fact that conceptions are not perfectly controllable events using longitudinal data on married couples the authors estimate these equations and test alternative specifications of the technologies governing child care the findings suggest that while parents cannot perfectly control conceptions variations in child care costs do affect life cycle spacing of births furthermore the results demonstrate the gains of modeling the linkages between female labor supply and fertility behavior at the household level authors modified

identifying the response of fertility to financial incentives summary while using financial incentives to increase fertility has become relatively common the effects of such policies are difficult to assess we propose an identification strategy that relies on the fact that the variation in wages induces variation in benefits and tax credits among comparable households we implement our approach by estimating a discrete choice model of female participation and fertility using individual data from the french labor force survey and a detailed representation of the french tax benefit system our results suggest that financial incentives have had a significant effect on fertility decisions in france as an example we simulate the effects of an additional unconditional child credit of 150 euros per month the effects are strongest for the third child copyright 2013 john wiley sons ltd

the higher returns to formal education for entrepreneurs versus employees how valuable is formal education for entrepreneurs income relative to employees and if the income returns to formal education are different for entrepreneurs vis a vis employees what might be a plausible explanation to explore these questions we analyze a large representative us panel we show that entrepreneurs have higher returns to formal education than employees we refer to this as the entrepreneurship returns puzzle we run post hoc analyses to explore a number of potential explanations of this puzzle indirectly our analysis indicates that the higher returns to formal education for entrepreneurs might be due to the fewer organizational constraints they face leading to more personal control over how to use their human capital compared to employees

the distance to competitive balance a cardinal measure competitive balance is a key variable in the analysis of sports competitions there are several indexes that measure competitive balance but either they are not a mathematical metric or they do no

an index of inequality with applications to horizontal equity and social mobility horizontal equity and social mobility are discussed in terms of a non utilitarian social welfare function which takes account of the process by which an ex ante distribution is mapped into an ex post distribution by the tax system for example an index of inequality is proposed which decomposes into two components corresponding to vertical and horizontal equity respectively a functional form for the social welfare function is derived for the purposes of empirical work and an application to data for 5895 uk households is presented the paper contains a theoretical application of the index to a model of optimal taxation it is conventional to assess the merits of alternative public policies in terms of a trade off between equity and efficiency in practice however a change in say the tax system involves three effects first it may have incentive or disincentive effects leading to efficiency gains or losses secondly it may alter the distribution of welfare levels thirdly it may alter the ranking of individuals or households within the distribution these three effects correspond to efficiency vertical equity and we shall argue certain aspects of horizontal equity respectively and any assessment of a tax change must take into account all three the principal assumption of this paper is that government is concerned about the trade off between these three effects a strict utilitarian is concerned only with the consequences of an action and in the evaluation of a particular reform a utilitarian measure of social welfare is defined over the vector of ex post utilities no account is taken of the process by which the vector of ex ante utilities is mapped into the ex post vector and no ethical status is awarded to the ex ante distribution one does not have to adopt an entitlement theory of justice to believe that the utilitarian approach may ignore some relevant considerations such as the fairness of the redistributive process a striking example of this arises in the model used by mirrlees 11 to examine optimal income taxation in that model individuals have identical preferences defined over consumption and leisure and differ only in respect of their potential wage rates or ability levels clearly in the absence of taxation individual utility is an increasing function of ability suppose the government uses redistributive lump sum taxes to achieve the first best optimum then as mirrlees 11 12 shows the first best optimum for a utilitarian social welfare

the determinants of workers union status evidence from the national longitudinal surveys using data from the 1980 wave of the young men nls sample this paper provides estimates of the queue model developed by farber to explain the process of union status determination the use of nls data largely avoids the censoring problem encountered by farber in estimating his model and permits direct estimation of crucial probabilities associated with the model despite important differences between econometric methodologies and the data sets analyzed the nls results support farber s conclusion that queueing for vacancies in existing union jobs is an important labor market phenomenon in particular supply constraints on the availability of union jobs are found to dominate worker preferences in explaining differences in extent of unionization by occupation and region but not race

equity equality and welfare this paper argues that horizontal equity he and vertical equity ve are two of the basic commands of social justice and can be seen as hierarchical the information content of the ve command is sufficient also to implement he a general vector specification of inequity is proposed for a tariff treatment system which does not satisfy he and ve in the case of the income tax the distinction between the he and ve commands and the nr no reranking criterion which has coexisted in the income tax literature with these for the last 15 years is drawn a complication not recognised by he and ve is the effect of pursuing the common interest efficiency goal of the tariff the paper concludes with a call for further work on the meaning and implementation of concepts of justice in direct taxation and on the common interest dimension

government employment and the provision of fringe benefits this study uses individual level data from the united states to examine the influence of government employment on the provision of five major fringe benefits four of the five benefits are more likely to be provided to government workers than to their private sector counterparts unlike wage comparisons which typically find substantial overpayment only for federal workers the findings suggest that past wage differentials underestimate the true compensation advantage enjoyed by government workers

do bad risks know it experimental evidence on optimism and adverse selection abstract subjects who overestimate their performance in experimental tasks unrelated to travel are less willing to insure against failing in the task and also less inclined to buy travel insurance this suggests intrinsic optimism influences insurance demand and diminishes adverse selection

equity well being and economic choice a review of horizontal equity uncertainty and economic well being edited by martin david and timothy smeeding chicago university of chicago press for the national bureau of economic research

a study of wages and reliability this article studies the role of reliability on the wage rate reliability is defined in the sense of showing up for scheduled work over an extended period just as reliability is an important determinant of product prices a worker s reliability ought to be an important determinant of his or her wage moreover while workers are not conveniently packaged by brand name firms form expectations about reliability across identifiable groups of workers and thus effectively attach brand names to workers based on their observable characteristics a worker s wage depends on his own track record and the reputation for reliability of his identifiable group using robust measures of reliability i find that observed reliability and expected reliability substantially affect the wage rate and that about half of the gender wage gap can be explained by differences in expected reliability between men and women in the workforce

equity in health care finance in palestine the triple effects revealed this paper presents an application of the urban and lambert upgraded ajl decomposition approach that was designed to deal with the problem of close income equals in equity analysis and as applied to the area of health care finance contrary to most previous studies vertical and horizontal inequities and the triple effects of inter groups intra group and entire group reranking of various financing schemes are estimated with statistical significance calculated using the bootstrap method application is made on the three financing schemes present in the case of the occupied palestinian territory results demonstrate the relative importance of the three forms of reranking in determining overall inequality the paper offers policy recommendations to limit the existing inequalities in the system and to enhance the capacity of the governmental insurance scheme

the role of pensions in the labor market a survey of the literature because employer sponsored group pension plans entail agreements between workers and their employers explicitly linking future payment and employment they offer an unusual window into long term employment relationships this review of recent research on pensions explores how pensions influence employee compensation retirement turnover and other matters central to the determination of labor s price and quantity over time the authors also outline some unanswered questions and difficult to reconcile findings because the pension promise involves an explicit and relatively well documented set of statements regarding future contingent payment and employment an examination of the design and operation of employersponsored group pension plans can yield important insights into the long term employment relationship specifically pension research illuminates some important labor market questions in two ways it offers insight into an important element of compensation in its own right and it furthers our understanding of labor markets in which long term

political complements in the welfare state health care and social security abstract all oecd countries target a large majority of their welfare spending to the elderly through public pensions and health care programs spending in both programs has largely increased in the past decades often more than the share of elderly in the population we suggest that these phenomena may be due to political complementarities between these two transfer programs we show that these two programs may coexist because public health care may increase the political constituency in favor of social security and vice versa specifically public health decreases the absolute longevity differential between low and high income individuals therefore rising the retirement period and the total pension benefits of the former relatively to the latter this effect increases the political support for social security among the low income young we show that in a political equilibrium of a two dimensional majoritarian election a voting majority of low income young and retirees supports a large welfare state the composition between public health and social security is determined by intermediate median income types who favor the contemporaneous existence of these two programs since public health increases their longevity enough to make social security more attractive technological improvements in health care strengthens this complementarity and lead to more welfare spending

an analysis of workers choice between employment in the public and private sectors this paper estimates the extent to which workers with different personal characteristics are likely to be employed in the public versus the private sector the author develops a reduced form two wa

government wage differentials a sample selection approach this paper uses the econometrics of sample selection to estimate the net wage differential between workers in the public and private sectors of the united states the results indicate workers self select by systematically locating in the sector which offers them the higher expected wage as a consequence previous research based on the assumption of random allocation between sectors is subject to serious specification bias the present estimation indicates government workers are slightly underpaid taking into account their observed characteristics and the selection process

profiles of fertility labour supply and wages of married women a complete life cycle model of all the major economic and demographic events in the postwar united states period the trends in fertility and female labour supply stand out as among the most dramatic fertility rates after their depression lows rose unexpectedly after world war ii far more than was anticipated as an adjustment to the war and continued to rise until the late 1950 s and early 1960 s when they again took an unexpected turn downward all the way to today s historical lows female labour force participation rates continuing their historical climb grew throughout the postwar period at an increasing pace by 4 percentage points during the 1950 s by 5 percentage points during the 1960 s and by 8 percentage points during the 1970 s these two trends are of course closely related for most married women have traditionally spent at least some minimal time out of the labour force while caring for their own children thus for example the slower growth rate of labour force participation rates in the 1950 s is probably connected with the higher fertility rates in that period in this paper a complete model of female labour supply and fertility choice is constructed and estimated the model is more complete than previous models in several respects first labour supply and fertility decisions are modelled as completely joint in the same sense as the consumption of two goods is joint second both are modelled as life cycle decisions that is as decisions regarding sequences of labour supply and fertility events rather than levels of the same hence the timing of both is important third the life cycle path of wage rates is made endogenous to the model given a wage function showing the effect of work experience on future wages the path of wages is determined automatically by the chosen path of labour supply which in turn is related to fertility decisions that require some period of non work econometrically the three profiles for labour supply fertility and wages are estimated with a full information maximum likelihood technique that solves several econometric problems such as the problem of heterogeneity of tastes the selectivity problem of missing wage rates for non workers and the problem of simultaneous equations bias the value of constructing a complete model is best seen by briefly reviewing past work in this area the modern literature in the area is based upon the work of becker

earnings inequality and welfare spending a disaggregated analysis the welfare state is generally viewed as either providing redistribution from rich to poor or as providing publicly financed insurance both views are incomplete welfare policies provide both insurance and redistribution in varying amounts depending on the design of the policy the authors explore the political consequences of the mix of redistribution and insurance in the context of studying the impact of income inequality on expenditures in different categories of welfare spending in advanced industrial societies from 1980 to 1995 they find that spending on pensions health care family benefits poverty alleviation and housing subsidies is largely uncorrelated with income inequality but that spending on income replacement programs such as unemployment insurance sickness pay occupational illness and disability are significantly higher in countries with more egalitarian income distributions they show that this pattern is exactly what a theory of political support for redistributive social insurance programs would predict

stayers as workers and savers the classic selection effect posits that deferred wages attract stayers the results in this paper suggest an alternative explanation deferred wage contracts attract savers all else constant savers are better workers than nonsavers a firm naturally works harder to retain better workers and thus is led to pay them higher wages thereby encouraging savers to remain in the firm s employ this process creates a confluence of deferred wages high levels of compensation and low quit propensities in this explanation staying is merely the result of a selection process and not the underlying factor that drives selection

inequality and polarisation in health systems responsiveness a cross country analysis the world health report 2000 proposed three fundamental goals for health systems encompassing population health health care finance and health systems responsiveness the goals incorporate both an efficiency and equity dimension while inequalities in population health and health care finance have motivated two important strands of research inequalities in responsiveness have received less attention in health economics this paper examines inequality and polarisation in responsiveness bridging this gap in the literature and contributing towards an integrated analysis of health systems performance it uses data from the world health survey to measure and compare inequalities in responsiveness across 25 european countries in order to respect the inherently ordinal nature of the responsiveness data median based measures of inequality and polarisation are employed the results suggest that in the face of wide differences in the health systems analysed there exists large variability in inequality in responsiveness across countries

fungibility and the impact of development assistance evidence from vietnam s health sector how can the impact of aid be estimated in the presence of fungibility and how far does fungibility reduce its benefits these questions are analyzed in a context where a donor wants to target its efforts on a specific sector and specific geographic areas a traditional differences in differences method comparing the change in outcomes between the target and nontarget areas before and after the project risks misestimating the project s benefits the paper develops an alternative estimation method in which intersectoral fungibility reduces project benefits insofar as government spending has a smaller impact in the sector to which the funds leak than in the target sector while intrasectoral fungibility reduces benefits insofar as the donor is able to leverage productivity increases in government spending in the target areas the methods are applied to two contemporaneous world bank health projects that set out to target assistance on approximately one half of vietnam s provinces aid is not apparently fungible between vietnam s health sector and other sectors but is fungible across provinces within the health sector differences in differences yield an insignificant impact on infant mortality while the use of the new method yields a statistically significant impact of around 4 per 1000 live births the results however are ambiguous on the costs associated with intrasectoral fungibility

international comparisons of welfare and poverty dominance orderings for ten countries inference based stochastic dominance procedures are applied to luxembourg income study data to rank ten western countries in terms of standards of living and poverty first order dominance comparisons ranks more than 50 percent of all pairwise comparisons and second order generalized lorenz dominance adds another 25 percent truncated dominance analysis is used to make inferences about poverty and up to 98 percent of the truncated distributions are ordered the results differ substantially from those obtained when only relative incomes and inequality are considered

concessions of infrastructure in latin america government led renegotiation this paper analyzes government led renegotiations in infrastructure concession contracts in latin america based on the same sample used in guasch laffont and straub 2003 to examine firm led renegotiations after extending the theoretical framework to a multiple period context in which both pareto improving and rent shifting renegotiations at the initiative of the government can occur we develop an original instrumental variable strategy to address the issue of contract endogeneity and derive empirical results while some of the main insights concerning the importance of having a regulator in place when awarding concessions and the fragility of price cap regulatory schemes are unchanged significant differences arise with respect to the effect of investment and financing as well as the corruption variables we provide evidence that a good regulatory framework is especially important in contexts with weak governance and political opportunism copyright 2007 john wiley sons ltd

horizontal equity uncertainty and economic well being the result of a national bureau of economic research income and wealth conference held in december 1983 this volume looks at theconcept of economic well being and the ways that analysts have tried to measure it in addition to income economists have begun to consider such factors as pensions wealth health and environment when measuring the well being of a particular group they have also begun to measure how consumers respond successfully or unsuccessfully to such economic uncertainties as inflation divorce and retirement using new data and techniques the contributors to this book concentrate on issues of uncertainty and horizontal equity the equal treatment of individuals within a defined group their work points to better ways of determining how various groups in a society are faring relative to other groups economists and policy analysts therefore will be in a better position to determine how government programs should be applied when well being is used as a test

who pays for health care in asia we estimate the distributional incidence of health care financing in 13 asian territories that account for 55 of the asian population in all territories higher income households contribute more to the financing of health care the better off contribute more as a proportion of ability to pay in most low and lower middle income territories health care financing is slightly regressive in three high income economies with universal social insurance direct taxation is the most progressive source of finance and is most so in poorer economies in universal systems social insurance is proportional to regressive in high income economies the out of pocket oop payments are proportional or regressive while in low income economies the better off spend relatively more oop but in most low middle income countries the better off not only pay more they also get more health care

fertility and female employment dynamics in europe the effect of using alternative econometric modeling assumptions we investigate the direct and long run effects of fertility on employment in europe estimating dynamic models of labor supply under different assumptions regarding the exogeneity of fertility and modeling assumptions related to initial conditions unobserved heterogeneity and serial correlation in the error terms we find overall large direct and long run effects of giving birth on employment probabilities and these effects differ considerably across countries we find that within countries the results are sensitive to the statistical assumption made on initial conditions the inclusion of serial correlation and the assumption of strict exogeneity of children however the pattern across countries is robust to these assumptions we show that such patterns are largely consistent with prevailing institutional differences related to the flexibility of the labor markets and family policies copyright 2009 john wiley sons ltd

the concept and measurement of horizontal inequity abstract this paper discusses the concept of horizontal equity and presents three formal principles as a basis for making comparisons of the extent of horizontal inequity produced by different redistributions a condition analogous to the lorenz criterion used for inequality comparisons is established under which the horizontal inequities of redistributions can be ranked without recourse to a cardinal measure of inequity ordinal comparisons are not possible in many cases the three principles suggest three properties that reasonable measures of horizontal inequity should possess a class of measures which satisfies the properties is proposed most other existing measures are found not to satisfy them

equity during an economic crisis financing of the argentine health system this article analyses the redistributive effect caused by health financing and the distribution of healthcare utilization in argentina before and during the severe 2001 2002 economic crisis both dramatically changed during this period the redistributive effect became much more positive and utilization shifted from pro poor to pro rich this clearly demonstrates that when utilization is contingent on financing changes can occur rapidly and that an integrated approach is required when monitoring equity from a policy perspective the argentine health system appears vulnerable to economic downturns mainly due to high reliance on out of pocket payments and the strong link between health insurance and employment

the effect of male migration on employment patterns of women in nepal what is the impact of male migration on the labor market behavior of women in nepal the instrumental variable full information maximum likelihood method is applied to data from the 2004 nepal household survey to account for unobserved factors that could simultaneously affect men s decision to migrate and women s decision to participate in the labor market the results indicate that male migration has a negative impact on the level of the labor market participation by women in the migrant sending household there is evidence of substantial heterogeneity based on both observable and unobservable characteristics in the impact of male migration the findings highlight the important gender dimension of the impact of predominantly male migration on the well being of sending households strategies for economic development in nepal should take into account such gender aspects of the migration dynamics

complementarity status similarity and social capital as drivers of alliance formation using data on u s investment banking firms syndication in underwriting corporate stock offerings during the 1980s this study explores the factors that drive alliance formation between two specific firms we compare resource complementarity status similarity and social capital as a basis of alliance formation the findings indicate that the likelihood of investment banks alliance formation is positively related to the complementarity of their capabilities as well as their status similarity social capital arising from banks direct and indirect collaborative experiences also plays a very important role in alliance formation the number of deals given by a lead bank to a potential partner over the past three years has an inverted u shaped relationship to the probability that the lead bank will invite the potential partner to form an alliance our findings indicate that status similarity and social capital have a stronger effect on alliance formation in initial public offering deals than in secondary offering deals as the former are more uncertain than the latter using these findings we discuss the role of complementarity status similarity and social capital in alliance formation copyright 2000 john wiley sons ltd

the influence of non pecuniary factors on labor supply the case of navy enlisted personnel this paper expresses the elasticity of labor supply to an occupation in terms of the variances and covariances of the distributions of non pecuniary factors across the alternative occupations we then apply our results to an analysis of reenlistment rates among navy enlisted personnel we argue that those navy skills experiencing a higher incidence of sea duty will have lower pay elasticities this prediction is confirmed empirically using probit analysis

the labor contract and true economic pension liabilities most pension covered workers in the united states are covered solely or primarily by defined benefit plans in these plans workers are typically promised a pension that is proportional to their years of service in the firm and their final wage depending upon how workers pay for it the existence of a pension in the labor contract may play either an important role or no role at all in the worker firm relationship this paper addresses the issue how workers pay for the cumulating pension benefit over their tenure cycle in the firm and derives several economic implications for the worker firm contract while the theory itself has ambiguous implications the data confirm the longstanding presumption that pensions offer strong incentives for the worker to complete the normal tenure cycle in the firm not to quit early but if this intuitive notion is accepted it is shown that a perhaps less intuitive notion is also true firms make workers longterm bondholders in the firm the same flow of worker pension savings that tie workers to the firm are not accounted for in the pension trust fund pension plans are significantly underfunded in a true economic sense this is a peculiar characteristic of the labor contract which raises several unanswered questions the paper also shows that the nature of the pension contract can play an important role in determining the wage service profile and the capitalized value of the firm recent contributions to the literature pose an interesting and unconventional view of pensions one which leads to the conclusion that pensions play a relatively minor role in the worker firm contract the argument has been implicitly made by burt barnow and ronald ehrenberg 1979 and william sharpe 1976 but has recently been stated more directly by jeremy bulow 1982 2 in essence their views rest on a legal interpretation of pension liabilities namely since the firm can legally terminate its pension plan anytime the firm s pension liabilities cannot exceed the present value of the nominal pension promises it would owe workers if the firm terminated the plan immediately if workers believe the firm will exercise its legal right it is intuitively apparent and easy to show that workers will deposit only that amount of compensation into the pension plan that they expect to receive upon immediate termination using this interpretation of pension plan liabilities pensions have no influence on whether the worker leaves or remains in the firm moreover it will be shown that if the pension contract is written in nominal terms reflecting the legal view workers are not bondholders in the firm pension plans are excessively overfunded an alternative view is that the pension plan is an implicit contract between the worker and the firm see for example jack treynor 1977 an implicit contract theory implies that workers anticipating careers with a firm will consider the package of wage and pension benefits they expect to collect over their life cycle it is shown that these expectations lead quite directly to several implications that the pension contract is written in real terms that firms intend to meet their pension promises and that the firm will re u s department of labor s 4521 washington d c 20210 the views expressed in this paper are my own and do not necessarily represent the views of the department of labor the paper has substantially benefited from the comments of pauline ippolito and discussions with jeremy bulow i am also indebted to robert clark gary fields alan gustman olivia mitchell james pesando john turner michael ward and participants at the labor relations workshop at cornell university and the law and economics workshop at the university of chicago for comments see my 1985a book 2 the argument is also implicit in other related papers see for example martin feldstein and randall morck 1982

the effects of child bearing on married women s labor supply and earnings using twin births as a natural experiment we use exogenous variations in fertility due to twin births to measure the impact of an unplanned child on married women s labor supply and earnings although the overall effects of an unplanned birth on labor supply are small we find significant effects in the years immediately following the unplanned birth especially in 1970 we estimate that declining fertility explains between 6 and 13 percent of the increase in married women s labor supply between 1970 and 1980 twin births are also associated with a substantial short run loss in earnings this effect persists longer than the labor supply effects though it does eventually disappear

the effect of separation bonuses on voluntary quits evidence from the military s downsizing this paper analyzes the decision of mid career personnel to voluntarily leave the u s military in response to a financial incentive program a model of the separation decision is tested using data on navy and air force enlisted personnel who were targeted for the buyout in 1992 two alternative estimates are provided one from a fixed effects model and one from a structural annualized cost of leaving model our basic results indicate the financial incentive had a modest effect in inducing additional quits the impact of the separation bonus however was much larger for occupations facing a threat of involuntary layoff

the importance of lifetime jobs in the u s economy though the u s labor market is justly notorious for high turnover and consequent high unemployment it also provides stable near lifetime employment to an important fraction of the labor force this paper investigates patterns of job duration by age race and sex with the following major conclusions 1 the typical worker today is holding a job which has lasted or will last about eight years over a quarter of all workers are holding jobs which will last twenty years or more sixty percent hold jobs which will last five years or more 2 the jobs held by middle aged workers with more than ten years of tenure are extremely stable over the span of a decade only twenty to thirty percent come to an end 3 among workers aged thirty and above about forty percent are currently working in jobs which eventually will last twenty years or more three quarters are in jobs which will last five years or more 4 the duration of employment among blacks is just as long as among whites even though the jobs held by blacks are worse in almost every other dimension they are no more unstable than those held by whites 5 women s jobs are substantially shorter than men s on the average only about a quarter of all women over the age of thirty are employed in jobs which will last over twenty years whereas over half of men over thirty are holding these near lifetime jobs this abstract was borrowed from another version of this item

children and household economic behavior this paper looks at some of the methodological issues that arise in modeling the effects of children on household behavior and presents some estimates for selected areas for our purposes household behavior will be taken to refer to household decisions on labor supply the allocation of expenditure to different periods and the decision as to what to do with the difference between income and expenditure i shall be concerned mainly with the effects of dependent children and i restrict attention largely to western societies excerpt

the impact of remittances on investment and poverty in ghana summary this paper analyzes the impact of internal remittances from ghana and international remittances from african or other countries on investment and poverty in ghana it has three findings first when compared to what they would have spent without the receipt of remittances households receiving remittances spend less at the margin on food second households receiving remittances spend more at the margin on three investment goods education housing and health third the receipt of remittances greatly reduces likelihood of household poverty these findings support the growing view that remittances can reduce poverty and increase investment in developing countries

pensions and indenture premia the implicit pension contract has provided a theoretical basis for the observed relation between pensions less quitting and earlier retirement but it also has encountered difficulty explaining why wages seem too high in pension firms this anomaly has been taken by some to imply that efficiency wages not pension capital losses explain why quitting is abnormally low in defined benefit pensions in this paper i pursue an alternative explanation that the implicit contract model is oversimplified because it ignores supply conditions facing long tenure firms i show that once an allowance is made for compensation required by workers for entering long term labor contracts numerous anomalous empirical observations in the pension market are explicable

equity in the finance of health care some further international comparisons this paper presents further international comparisons of progressivity of health care financing systems the paper builds on the work of wagstaff et al wagstaff a van doorslaer e et al 1992 equity in the finance of health care some international comparisons journal of health economics 11 pp 361 387 but extends it in a number of directions we modify the methodology used there and achieve a higher degree of cross country comparability in variable definitions we update and extend the cross section of countries and we present evidence on trends in financing mixes and progressivity

public sector wages and bureaucratic quality evidence from latin america the purpose of this paper is to present evidence on public private wage differential for a sample of latin american countries and to discuss the relationship between public private wage differentials and bureaucratic quality in the region the paper starts by estimating public private wage differentials for a sample of 17 latin american countries covering 88 percent of the population of the region next the paper looks at the relationship between bureaucratic quality and public private wage differentials and finds that while there is no correlation between average public sector wages and bureaucratic quality there is a positive correlation between bureaucratic quality and the degree

why federal workers don t quit quit rates in the federal government are abnormally low some economists and the federal government itself have taken this to mean that federal wages are too high this paper provides an alternative explanation it shows that the timing of compensation across a career as well as its level affect quit rates pensions in particular impose large penalties on workers who quit early and the portion of federal pay in the form of pensions is very high this feature of the federal pay structure may explain its abnormally low quit rate as a general proposition quit rates are poor indices for judging pay adequacy

equity in the finance of health care some international comparisons this paper presents the results of a ten country comparative study of health care financing systems and their progressivity characteristics it distinguishes between the tax financed systems of denmark portugal and the u k the social insurance systems of france the netherlands and spain and the predominantly private systems of switzerland and the u s it concludes that tax financed systems tend to be proportional or mildly progressive that social insurance systems are regressive and that private systems are even more regressive out of pocket payments are in most countries an especially regressive means of raising health care revenues

agency growth salaries and the protected bureaucrat agency growth salaries and the protected bureaucrat i introduction in recent years increased attention has been directed towards understanding bureaucratic behavior and its implications for economic performance a key element of this literature is the application of utility maximization for deriving implications about bureaucratic behavior representative is niskanen 1971 38 who argues that bureaucratic decisions are made rationally to maximize utility which is assumed to be a function of salary perquisites reputation power patronage and output implicit in the literature is an activist bureaucracy which engages in purposeful action to advance its interests an important part of some of the bureaucracy literature is the notion that government employees are a source of the documented growth of government it is commonly asserted that government employees acting in their own self interest will foster the growth of their organization growth of the organization is seen as a means for increasing salaries as well as the other arguments in the utility function the positive link between salaries and growth is emphasized by downs 1967 11 in his classic study of bureaucracy any organization experiencing rapid overall growth provides many more opportunities for promotion in any given time period than a static one additional references to the importance of agency growth for salaries include niskanen 1971 38 41 1975 619 tullock 1974 127 and heclo 1977 131 building on that theme other researchers such as bush and denzau 1977 borcherding bush and spann 1977 and bennett and orzechowski 1983 have argued that government employees will use their power to influence election outcomes to promote government growth and hence salaries despite the often critical nature of the salary growth relationship in recent discussions of bureaucratic behavior and the growth of government there is no direct empirical evidence of the asserted linkage related evidence provided for example by wolfinger and rosenstone 1980 97 101 that government employees have higher voter participation rates than do private employees is not conclusive support for the growth salary assertion voting results alone do not permit one to distinguish the underlying reasons for the higher participation rates and there are many more importantly for the federal government at least the assertion that salaries of government employees are significantly affected by agency growth seems inconsistent with the idea that the civil service system shields federal white collar employees from the uncertain fluctuations of political outcomes skepticism about the growth salary linkage due to the constraints of the civil service system is noted by wilson 1980 375 few officials need fear for their jobs and their salaries are determined by government wide laws and regulations rather than by the size rate of growth or success of the organization further while senior agency officials would be in the best positions to promote the growth of their agencies within the federal government the salaries of high gs general schedule level and senior executive service personnel are capped by law and may not exceed those paid to officials in executive level v the restriction limits the salaries of senior managers regardless of the growth of the agency one could however argue that managers promote growth to motivate their subordinates or that medium and lower level employees are the primary proponents of agency growth but as kaufman 1981 79 notes most officers and employees once they have attained career status could do nearly as well materially without pushing themselves as they could by working at capacity the absence of incentives and resulting inertia can contribute to the often cited tension between career bureaucrats and political appointees the above discussion points out a serious problem with the growth salary linkage often asserted in the bureaucracy literature

progressivity horizontal equity and reranking in health care finance a decomposition analysis for the netherlands this paper employs the method of aronson et al 1994 to decompose the redistributive effect of the dutch health care financing system into three components a progressivity component a classical horizontal equity component and a reranking component results are presented for the health care financing system as a whole as well as for its constituent parts a final section sets out to uncover the relative importance in terms of their effects on progressivity horizontal equity and reranking of the key institutional features of one component of the dutch system the awbz social insurance scheme

the redistributive effect of health care finance in twelve oecd countries the oecd countries finance their health care through a mixture of taxes social insurance contributions private insurance premiums and out of pocket payments the various payment sources have very different implications for both vertical and horizontal equity and on redistributive effect which is a function of both this paper presents results on the income redistribution consequences of the health care financing mixes adopted in twelve oecd countries by decomposing the overall income redistributive effect into a progressivity horizontal inequity and reranking component the general finding of this study is that the vertical effect is much more important than horizontal inequity and reranking in determining the overall redistributive effect but that their relative importance varies by source of payment public finance sources tend to have small positive redistributive effects and less differential treatment while private financing sources generally have larger negative redistributive effects which are to a substantial degree caused by differential treatment

a measure of horizontal inequity politicians academicians and the general public alike have perceived that the status quo tax and transfer legislation creates inequities among living units tax laws create numerous situations in which living units with seemingly equal abilities to pay are taxed quite different amounts state by state differences in welfare eligibility rules benefit schedules and administrative procedures the general unavailability of cash welfare to childless nonaged healthy couples and single individuals and other features of transfer programs similarly provide vastly different levels of income support to units with equal needs advocates of major tax and welfare reform have marshalled such evidence into a central argument in favor of their proposals while there is wide agreement that the process of redistributing incomes abounds with inequities there have been few attempts to quantify their extent 2 this paper develops a measure of horizontal inequity and illustrates its use section ii discusses the concept of horizontal equity then builds upon familiar lorenz curve gini coefficient analysis to derive the inequity index the third part considers some problems of implementing the measure and illustrates it section iv provides a short conclusion

life cycle employment and fertility across institutional environments in this paper we formulate a dynamic utility maximization model of female labor force participation and fertility choices and estimate approximate decision rules using data on married women in italy spain and france the pattern of estimated state dependence effects across countries is consistent with aggregate patterns in part time employment and child care availability suggesting that labor market rigidities and lack of child care options are important sources of state dependence simulations of the model reveal that italian and spanish women would substantially increase their participation rates were they to face the french institutional environment

personal income tax reforms a genetic algorithm approach given a settled reduction in the present level of tax revenue and by exploring a very large combinatorial space of tax structures in this paper we employ a genetic algorithm in order to determine the best structure of a real world personal income tax that allows for the maximisation of the redistributive effect of the tax while preventing all taxpayers being worse off than with the present tax structure we take italy as a case study

does grade retention affect students achievement some evidence from spain grade retention practices are at the forefront of the educational debate in this article we measure the effect of grade retention on spanish students achievement by using data from programme for international student assessment pisa we find that grade retention has a negative impact on educational outcomes but we confirm the importance of endogenous selection which makes observed differences between repeaters and nonrepeaters appear about 14 lower than they actually are the effect on scores of repeating is much smaller 10 of nonrepeaters average than the counterfactual reduction that nonrepeaters would suffer had they been retained as repeaters 24 of their average furthermore those who repeated a grade during primary education suffered more than those who repeated a grade in secondary school although the effect of repeating at both times is as expected larger

double dipping the combined effects of social security and civil service pensions on employee retirement we consider the retirement behavior of civilian employees of the united states government unlike previous studies this investigation is based upon a data set containing fairly complete and accurate information about the social security and employer provided pensions for which employees are or ultimately will be eligible these data permit us to specify the financial aspects of individual retirement decisions with a reasonable degree of precision a large fraction of civil service pensioners is eligible to receive social security benefits because a part of their working careers was spent in social security covered employment the prevalence of double pension coverage among government employees has raised serious equity questions about the treatment of civil servants by social security and these questions have led to various suggestions for pension reform partly the reform proposals have been put forward due to the perceived unfairness of double dipping which arises from the double pension coverage of government employees our analysis finds 1 both the amount of a federal pension entitlement and the expected wait until the pension commences affect the timing of retirement from the federal service 2 the rate of anticipated wage growth significantly affects individual decisions to remain in federal employment 3 workers who are eligible to ultimately receive social security in some cases show a different pattern of retirement than do workers not vested in social security however our analysis does not reveal any massive shift of federal workers into social security covered employment in order to benefit from the tilt in the social security formula this abstract was borrowed from another version of this item

redistribution effect and unequal income tax treatment decomposing the post tax gini coefficient across groups of pre tax equals reveals the separate contributions to the redistributive effect of an income tax of 1 the effective schedule the vertical effect 2 the unequal treatment of equals arising from departures from this effective schedule the horizontal effect and 3 the reranking of unequals as a result of such departures the reranking effect the methodology is applied to u k microdata throughout the period 1978 91 reranking understates the negative contribution to redistributive effect of unequal tax treatment by about one third and is far outweighed by the vertical effect copyright 1994 by royal economic society

equity in the finance and delivery of health care some tentative cross country comparisons textabstractequity is widely acknowledged to be an important goal in the field of health care indeed mclachlan and maynard 1982 have gone so far as to suggest that the vast majority of the population would elect for equity to be the prime consideration p 556 a view endorsed by mooney 1986 p 145 several researchers have investigated how successful their own country s delivery and or financing system is in achieving its stated equity goals in general the strategy of these studies is to compare the current situation with some ideal or target situation le grand 1978 for example in what has become a classic study in the field compares the distributions across socio economic groups of illness and public expenditure on health care in britain in 1972 and concludes that the national health service nhs has failed to achieve equity in the delivery of health care

fringe benefits and labor mobility interindustry factor mobility is a crucial determinant of the income distribution effects of exogenous changes in relative commodity prices this examination of interindustry variation in wages and profits using data from manufacturing industries from

comment on the dynamics of job separation the case of federal employees summary this paper recasts the model presented in the dynamics of job separation the case of federal employees as an optimal stopping problem it shows that the individuals represented by the model are assumed to behave suboptimally and illustrates several policy analysis problems introduced by assuming such behaviour

the measurement of horizontal inequality an alternative approach to the measurement of horizontal inequality is developed this measure of inequality is based on an explicit social welfare function which is formulated so as to be consistent with the basic principles of social choice the arguments of the social welfare function are welfare functions that depend on prices total expenditure and the demographic composition of the household the level of horizontal inequality is defined to be the difference between the level of social welfare attained at a perfect horizontally egalitarian distribution of welfare and the level of social welfare attained at the existing distribution of individual welfare the level of horizontal inequality induced by the introduction of commodity taxes is evaluated for the united states over the period 1947 85 copyright 1989 by mit press

a conceptual framework for community based health insurance in low income countries social capital and economic development summary the international policy model linking community based health insurance cbhi and universal coverage for health care in low income countries is implicitly determined by the development of mutual health insurance in 19th century europe and japan the economic and health system frameworks employed in cbhi policy have not sufficiently taken into account contextual considerations social capital theories could contribute to understanding why generally cbhi does not achieve significant and sustainable levels of population coverage a framework of social capital and economic development is used to organize and interpret existing evidence on cbhi this suggests that solidarity trust extra community networks vertical civil society links and state society relations affect the success of cbhi aligning schemes to social determinants of cbhi could result in structures that differ from those proposed by current analytic frameworks

labor turnover in the u s federal bureaucracy this paper presents an empirical analysis of labor turnover in the u s federal bureaucracy the results indicate that job experience in politically important federal agencies is valued by the private sector hence high level bureaucrats employed in these agencies have high turnover probabilities the analysis also shows that equalization of federal sector and private sector wage rates would lead to a relatively small increase in turnover but to substantial savings in federal payroll costs

redistributive effect progressivity and differential tax treatment personal income taxes in twelve oecd countries this paper decomposes the redistributive effect of the personal income taxes pits of twelve oecd countries into four components i an average rate effect ii a departure from proportionality or progressivity effect iii a horizontal equity effect and iv a reranking effect the product of i and ii indicates the vertical redistribution associated with the pit and the sum of iii and iv indicates the impact on the distribution of income of differential tax treatment the average tax rate is found to be low in france and high in the nordic countries and the pit is found to be most progressive in france ireland and spain and least progressive in denmark and sweden taking i and ii together denmark and the us achieve broadly similar levels of vertical redistributive effect differential treatment is found to have a much smaller effect on income redistribution as a proportion of redistributive effect than the vertical redistribution caused by progressivity though there are differences between countries these differences appear to be due principally to a different emphasis on deductions such as tax deductibility of mortgage interest payments and insurance premiums and on local income tax

employer size and labor turnover the role of pensions the well documented lower labor turnover in large firms than in smaller firms has been cited as evidence that large firms pay workers above their opportunity wage this study investigates whether t

poverty inequality and income distribution in comparative perspective the luxembourg income study lis the luxembourg income study is a unique database that makes possible comparisons between countries at the individual and family levels seven countries are in the database at present and more are being added on a regular basis this book describes the technical and methodological aspects of the lis database and uses lis data to compare income distribution and redistribution poverty and the relationship between age and income across nations

transition to entrepreneurship from the public sector predispositional and contextual effects studies of career dynamics implicitly claim that government employees are not entrepreneurial utilizing longitudinal data from the u s panel study for income dynamics we investigate the reasons for the low rate of entrepreneurship from the public sector we conjecture that it is due to labor market matching processes and the bureaucratic nature of public organizations and bureaucratization of individuals our life course analysis identifies labor market matching as a major determinant nonentrepreneurial types choose public sector employment we also uncover tenure and context effects which decrease and increase the hazard rate of entrepreneurial exit respectively whereas the former effect points toward adaptation and internal labor market sorting the latter draws attention to exits due to frustration

binary choice with binary endogenous regressors in panel data this article considers the estimation of the causal effect of fertility on female labor force participation equations my main concern is to examine two considerations the endogeneity of fertility and the impact of controlling for unobserved heterogeneity and for predetermined existing children using psid data a switching binary panel data model that accounts for selectivity bias as well as for other forms of time invariant unobserved heterogeneity is estimated individual effects are allowed to be correlated with the explanatory variables which can be predetermined as opposed to strictly exogenous family sex composition is used as an instrument for exogenous fertility movements the results indicate that exogeneity assumptions of children variables induce a downward bias in absolute value in the estimated negative effect of fertility on participation although the failure to account for unobserved heterogeneity overstates this effect moreover stronger effects of fertility are found when existing c

the effects of pension funds on markets performance a review the worldwide reforming process of pension systems triggered by the demographic transition and globalization has led several countries to implement multi pillar pension systems and enhance pension funds for this reason the studies on the effects that pension funds exert on markets performance have been flourishing in the last decades in this paper we provide an updated review of the empirical advances in this field of study with particular focus on the effects that pension funds produce on labour markets financial markets and economic growth

encouraging long term tenure wage tilt or pensions the author analyzes data on 6 416 persons in 109 firms to determine whether the length of these workers tenure was positively related either to wage tilt the payment of below market wages in the early years of the worker s employment with a firm and above market wages in the later years or to the presence of defined benefit pension plans contrary to the popular but little tested hypothesis that wage tilt is important in inducing workers to make long term commitments to the firm the results show that wage tilt had no significant effect on tenure except indirectly through its effect on pension quit costs in contrast pensions increased tenure in the firm on average by more than 20