multiplicative habit formation and consumption a note a multiplicative form of the habit term in the utility function has some undesirable properties if the habit function is itself still additive wendner 2003 a geometric form for the way the stock of habit accumulates can resolve these shortcomings

a mismatch made in heaven a hedonic analysis of overeducation and undereducation in this paper a hedonic pairing process is modeled in which some workers may be overeducated or undereducated as an equilibrium outcome of a dynamic labor market undereducated workers are those whose abilities and training permit them to move into a job with higher qualifications whereas overeducated workers are highly qualified workers who select into lower skill entry level jobs that provide the training or signal necessary for promotion the empirical model shows that these pairing types cannot be directly identified in a cross section since all workers are exactly educated during a portion of their career however pairing types may be imputed by comparing predicted and observed qualifications of the worker and predicted and observed requirements of the firm using a rich cross section and a panel of british working age males to identify the pairing types we confirm the predicted career development patterns with regard to on the job training promotion and wages

risk premiums for decision regret some people find decision making under uncertainty difficult because they fear making the wrong decision wrong in the sense that the outcome of their chosen alternative proves to be worse than could have been achieved with another alternative these people may be willing to pay a premium to avoid consequences that produce this decision regret this paper continues an earlier investigation into the normative implications of decision regret and looks at situations where the joint probability distribution of consequences between alternatives is not specified at the time of the decision it includes a discussion of cases where the outcomes produced by alternatives not chosen are never resolved a consequence of this model of preferences for risky situations is that two components of risk aversion may be identified decreasing marginal value and regret aversion

competing for capital when labor is heterogeneous this paper investigates the impacts of capital mobility and tax competition in a setting with imperfect matching between firms and workers the small country always gains and the large country always loses from tax competition thus implying tax competition leads to redistribution from the large to the small country however the large country always attains a higher utility than does the small country these results imply that our model encapsulates both the importance of being small as well as the importance of being large we also show that tax harmonization leads to redistribution from the large to the small country

the division of labor local markets and worker organization the model developed here explains differences in the degree of the division of labor across local markets for example the typical doctor in one local market may treat a wider range of patients problems than his counterpart in another local market the extent of the division of labor depends on variables affecting the local demand for services two different forms of worker organization cooperation and noncooperation yield divergent results for example specialization increases with the local number of producers under cooperation but may decrease under noncooperation with the number of producers constant local demand variables affect individual specialization under noncooperation but not under cooperation

the reform of unemployment compensation choices for east and west abstract the rapid emergence of open unemployment is accompanying moves towards market economies in eastern european countries governments are responding with unemployment benefit schemes which may be seen as a natural and positive complement to economic reform at the same time compensation for the unemployed is often viewed in a negative light in western europe with the 1980s having been a period of retrenchment in the face of higher levels of unemployment this contrast between east and west is used in the paper to stimulate reconsideration of principles of income support for the unemployed given that any civilised society would wish to provide for the unemployed what form should compensation for unemployment take the paper considers the choice between contributory unemployment insurance and means tested unemployment assistance stressing the positive aspects for labour markets of the former how should schemes in western europea be revised do the schemes currently emerging in eastern europe make sense in the light of both the particular circumstances of the change occuring in eastern european economies and the experience with the operation of different schemes in western europe and other oecd countries

optimal portfolio choice for long horizon investors with nontradable labor income this paper examines how risky labor income and retirement affect optimal portfolio choice with idiosyncratic labor income risk the optimal allocation to stocks is unambiguously larger for employed investors than for retired investors consistent with the typical recommendations of investment advisors increasing idiosyncratic labor income risk raises investors willingness to save and reduces their stock portfolio allocation towards the level of retired investors positive correlation between labor income and stock returns has a further negative effect and can actually reduce stockholdings below the level of retired investors financial advisors typically recommend that their customers invest more in stocks than in safe assets when they are working and to shift their investments towards safe assets when they retire jagannathan and kocherlakota 1996 malkiel 1996 by contrast the standard academic models of portfolio choice merton 1969 1971 samuelson 1969 show that retirement is irrelevant for portfolio decisions if investment opportunities are constant and human capital is tradable in this case the fraction of wealth optimally invested in risky assets should be constant over the lifetime of an individual recent research building on the pioneering work by merton 1971 shows that time varying investment opportunities result in portfolio rules with an intertemporal hedging component whose magnitude depends on the investment horizon of the investor kim and omberg 1996 balduzzi and lynch 1997 brennan schwartz and lagnado 1997 brandt 1999 campbell and viceira 1999 2001 barberis 2000 with time variation in investment opportunities retirement and death play an instrumental role as events that exogenously fix the individual s investment horizon more importantly retirement also marks the time at which individuals stop working and thereafter must live off their lifetime savings and possibly transfers from this perspective retirement matters for portfolio choice

disappointment in decision making under uncertainty decision analysis requires that two equally desirable consequences should have the same utility and vice versa most analyses of financial decision making presume that two consequences with the same dollar outcome will be equally preferred however winning the top prize of 10 000 in a lottery may leave one much happier than receiving 10 000 as the lowest prize in a lottery this paper explores the implications of disappointment a psychological reaction caused by comparing the actual outcome of a lottery to one s prior expectations for decision making under uncertainty explicit recognition that decision makers may be paying a premium to avoid potential disappointment provides an interpretation for some known behavioral paradoxes and suggests that decision makers may be sensitive to the manner in which a lottery is resolved the concept of disappointment is integrated into utility theory in a prescriptive model

a theory of disappointment aversion an axiomatic model of preferences over lotteries is developed it is shown that this model is consistent with the allais paradox includes expected utility theory as a special case and is only one parameter beta richer than the expected utility model allais paradox type behavior is identified with positive values of beta preferences with positive beta are said to be disappointment averse it is shown that risk aversion implies disappointment aversion and that the arrow pratt measures of risk aversion can be generalized in a straight forward manner to the current framework copyright 1991 by the econometric society

an isomorphism between asset pricing models with and without linear habit formation we show an isomorphism between optimal portfolio selection or competitive equilibrium models with utilities incorporating linear habit formation and corresponding models without habit formation the isomorphism can be used to mechanically transform known solutions not involving habit formation to corresponding solutions with habit formation for example the constantinides 1990 and ingersoll 1992 solutions are mechanically obtained from the familiar merton solutions for the additive utility case without recourse to a bellman equation or first order conditions more generally recent solutions to portfolio selection problems with recursive utility and a stochastic investment opportunity set are readily transformed to novel solutions of corresponding problems with utility that combines recursivity with habit formation the methodology also applies in the context of hindy huang kreps 1992 preferences where our isomorphism shows that the solution obtained by hindy and huang 1993 can be mechanically transformed to dybvig s 1995 solution to the optimal consumption investment problem with consumption ratcheting this article presents a general method for solving asset pricing or portfolio selection models involving linear habit formation of the type studied by sundaresan 1989 constantinides 1990 detemple and zapatero 1991 ingersoll 1992 chapman 1998 and others the basic idea we pursue is that linear habit formation can be thought of as a redefinition of what constitutes consumption to include not only the current consumption rate but also a fictitious possibly negative consumption rate derived from past actual consumption by pricing out this fictitious consumption rate correctly the economy with linear habit formation can be mechanically transformed to an equivalent economy without habit formation this analysis simplifies and unifies existing results but also generates novel solutions for example together with the results of schroder and skiadas 1997 1999 our method produces optimal lifetime consumption and portfolio policies with preferences that combine recursive utility with habit formation under a stochastic

the role of risk aversion and intertemporal substitution in dynamic consumption portfolio choice with recursive utility abstract our objective is to understand how risk aversion and elasticity of intertemporal substitution under recursive utility affect dynamic consumption portfolio decisions for a three date model with a stochastic interest rate we obtain an analytic solution for the optimal policies we find that in general consumption and portfolio decisions depend on both risk aversion and elasticity of intertemporal substitution the size of risk aversion relative to unity determines the sign of the intertemporal hedging portfolio while elasticity of intertemporal substitution affects only its magnitude the portfolio weight is independent of elasticity of intertemporal substitution only for the case of a constant investment opportunity set

expectations based reference dependent life cycle consumption this study incorporates a recent preference specification of expectations based loss aversion which has been applied broadly in microeconomics into a classic macro model to offer a unified explanation for three empirical observations about life cycle consumption first loss aversion explains excess smoothness and sensitivity that is the empirical observation that consumption responds to income shocks with a lag intuitively such lagged responses allow the agent to delay painful losses in consumption until his expectations have adjusted secondly the preferences generate a hump shaped consumption profile early in life consumption is low due to a first order precautionary savings motive however as uncertainty resolves over time this motive is dominated by time inconsistent overconsumption that eventually leads to declining consumption towards the end of life thirdly consumption drops at retirement prior to retirement the agent wants to overconsume his uncertain income before his expectations catch up post retirement however income is no longer uncertain and overconsumption is associated with a sure loss in future consumption as an empirical contribution i structurally estimate the preference parameters using life cycle consumption data my estimates match those obtained in experiments and other micro studies and generate the degree of excess smoothness observed in macro consumption data

urban wages and labor market agglomeration abstract using the 5 public use micro sample of the 1990 u s census we find that observationally equivalent workers in the manufacturing sector earn higher wages when they are in urban labor markets that have a larger share of national or metropolitan employment in their same occupation and industry groups quantitatively the effect is large with an elasticity measured at the means of between 1 2 and 3 6 for these effects we interpret the willingness of firms to pay more for equivalent workers in dense markets as evidence of an agglomeration economy in urban labor

optimal portfolio choice under loss aversion this paper analyzes the optimal investment strategy for loss averse investors assuming a complete market and general ito processes for the asset prices the loss averse investor follows a partial portfolio insurance strategy when the investor s planning horizon is short less than 5 years he or she considerably reduces the initial portfolio weight of stocks compared to an investor with smooth power utility the empirical section of the paper estimates the level of loss aversion implied by historical u s stock market data using a representative agent model we find that loss aversion and risk aversion cannot be disentangled empirically

excess sensitivity of consumption to current income liquidity constraints or myopia this paper asks whether the empirical rejection of the rational expectations permanent income hypothesis occurs because agents are myopic in the sense that the marginal propensity to consume out of transitory income is non zero or because some agents face liquidity constraints the finding that the estimate of the mpc out of transitory income is dramatically affected in both magnitude and statistical significance by the inclusion of a proxy for liquidity constraints suggests that liquidity constraints are an important part of the explanation of the observed excess sensitivity of consumption to current income la sensibilite excessive de la consommation au revenu courant contraintes sur la liquidite ou myopie ce memoire examine la question a savoir pourquoi l hypothese du revenu permanent avec anticipations rationnelles n est pas v6rifiee empiriquement est ce parce que les agents economiques sont myopes i e que leur propension marginale a consommer a partir de leur revenu transitoire n est pas nulle ou bien est ce que certains agents economiques font face a des contraintes sur leur liquidite le fait que l estimation de la propension marginale a consommer le revenue transitoire est affectee par l inclusion d une variable qui tente de capturer l importance des contraintes sur la liquidit6 tant dans l 6valuation de sa taille que dans sa signification statistique suggere que ces contraintes jouent un role important dans l explication de cette sensibilite excessive qu on observe de la consommation aux changements dans le niveau de revenu courant almost all the recent empirical tests of the rational expectations permanent income hypothesis re pih have rejected the hypothesis using a rich variety of data sets and estimation methods the empirical work indicates that the failure of the re pih is significant both statistically and quantitatively the null hypothesis in this empirical literature typically consists of the joint hypothesis that 1 agents expectations are formed rationally 2 desired consumption is determined by permanent income and 3 capital markets are perfect in the sense that agents can lend or borrow against 1 studies rejecting the re pih include blinder 1981 flavin 1981 hall and mishkin 1982 hayashi 1982 and sargent 1978 in his original paper hall 1978 did not reject the re pih decisively however flavin 1981 showed that with a minor alteration in the specification of the alternative hypothesis the re pih could be rejected using hall s test and data set bernanke 1981 studying panel data on automobile expenditures did not find evidence against the hypothesis for an extensive survey of the empirical literature on the rational expectations permanent income hypothesis see king 1983 canadian journal of economics revue canadienne d economique xviii no 1 february fevrier 1985 printed in canada imprime au canada 0008 4085 85 117 36 1 50 canadian economics association this content downloaded from 157 55 39 17 on wed 31 aug 2016 05 08 58 utc all use subject to http about jstor org terms

habit formation in consumption and its implications for monetary policy models this paper explores a monetary policy model with habit formation for consumers in which consumers utility depends in part on current consumption relative to past consumption the empirical tests developed in the paper show that one can reject the hypothesis of no habit formation with tremendous condence largely because the habit formation model captures the gradual hump shaped response of real spending to various shocks the paper then embeds the habit consumption specication in a monetary policy model and nds that the responses of both spending and inflation to monetary policy actions are signicantly improved by this modication jel d12 e52 e43

reference dependent risk attitudes we use koszegi and rabin s 2006 model of reference dependent utility and an extension of it that applies to decisions with delayed consequences to study preferences over monetary risk because our theory equates the reference point with recent probabilistic beliefs about outcomes it predicts specific ways in which the environment influences attitudes toward modest scale risk it replicates classical prospect theory including the prediction of distaste for insuring losses when exposure to risk is a surprise but implies first order risk aversion when a risk and the possibility of insuring it are anticipated a prior expectation to take on risk decreases aversion to both the anticipated and additional risk for large scale risk the model allows for standard consumption utility to dominate reference dependent gain loss utility generating nearly identical risk aversion across situations

loss aversion in a consumption savings model abstract we propose a model of consumption and saving based on kahneman and tversky s prospect theory that implies a fundamental asymmetry in consumption behavior inconsistent with other models of consumption when there is sufficient income uncertainty a person resists lowering consumption in response to bad news about future income this resistance is greater than the resistance to increasing consumption in response to good news we present empirical evidence from five countries that confirms this behavior

growth and change in human capital across the canadian urban hierarchy 1996 2001 university degree holders in large cities are more prevalent and are growing at a more rapid pace than in smaller cities and rural areas this relatively high rate of growth stems from net migrator

skill mismatch and unemployment in oecd countries marco manacorda this paper uses evidence on employment labour force and wage differentials by education from oecd countries to investigate the characteristics and the consequences of a skill biased shift in the structure of labour demand and supply the empirical analysis shows that there has been some increase in skill mismatch in a few oecd countries over the past two decades but this has not been a generalized phenomenon moreover the rise in mismatch cannot explain much of the rise in unemployment in continental europe while it does explain a significant proportion of the increase in the rate of joblessness in britain

optimal consumption portfolio choices and retirement planning abstract we examine consumption and investment decisions in a life cycle model with habit formation stochastic opportunity set stochastic wages and labor supply flexibility retirement is taken into account by specifying an age at which labor earnings stop but consumption spending continues explicit solutions are obtained for optimal consumption labor supply and the financing portfolio we examine the structure and determinants of the optimal portfolio we also study the effects of the retirement date and of habits on optimal decisions finally we conduct a preliminary analysis to assess the effects of a liquidity constraint on optimal consumption leisure choices

real wage adjustment and employment policies in the nordic countries nordic employment lars calmfors and ragnar nymoen sweden and norway but also finland have managed to avoid the general western european rise in unemployment the article discusses to what extent this can be explained by a smoothly functioning wage setting system and by active labour market policies the analysis confirms earlier findings of an unusually large responsiveness of wages to unemployment in sweden and norway it is however questionable whether this can be explained by centralized bargaining nor do the authors find any evidence that corporatist tax wage bargains should have contributed to wage restraint the absence of hysteresis effects may be one explanation of why unemployment rises were easily reversed the most controversial finding is that active labour market policies may have strong wage raising effects if so labour market programmes may actually reduce regular employment and even increase open unemployment the authors argue that a reduced rather than an increased emphasis on labour market policies may have been an important factor for real wage restraint especially in sweden this may be an important lesson for those who regard extensive labour market programmes of the swedish type as a blueprint to follow

wage competition with heterogeneous workers and firms we study imperfect competition in the labor market when both workers and firms are heterogeneous when firms cannot observe workers skill firms pay workers equal wages but workers absorb training costs when firms can identify worker types firms pay different net wages to different workers voters select the level of general education that is financed by a lump sum tax workers are on average better off when firms can observe workers skill for a given level of general human capital but the median voter prefers a higher level of general human capital when firms cannot observe worker types

the role of shocks and institutions in the rise of european unemployment the aggregate evidence two key facts about european unemployment must be explained the rise in unemployment since the 1960s and the heterogeneity of individual country experiences while adverse shocks can potentially explain much of the rise in unemployment there is insufficient heterogeneity in these shocks to explain cross country differences alternatively while explanations focusing on labour market institutions explain current heterogeneity well many of these institutions pre date the rise in unemployment based on a panel of institutions and shocks for 20 oecd nations since 1960 we find that the interaction between shocks and institutions is crucial to explaining both stylised facts

the human capital stock a generalized approach this paper presents a new framework for human capital measurement the generalized framework can i substantially amplify the role of human capital in accounting for cross country income dierences and ii reconcile the existing con ict between regression and accounting evidence in assessing the wealth and poverty of nations one natural interpretation emphasizes dierences across economies in the acquisition of advanced knowledge by skilled workers

unemployment vs mismatch of talents reconsidering unemployment benefits we develop an equilibrium search matching model with risk neutral agents and two sided ex ante heterogeneity unemployment insurance has the standard effect of reducing employment but also helps workers to get a suitable job we show through calibrations how the mere difference on unemployment insurance when countries experience a common skilled biased technological shock may result in differences in unemployment productivity growth and wage inequality these results are consistent with the contrasting performance of the labour market in europe and the united states in the last twenty five years the model is used to address some political economy issues

can welfare abuse be welfare improving abstract i analyze quantitatively a model of labor search with unemployment insurance ui savings voluntary quits and various labor attachment requirements in particular i study welfare consequences of a powerful reform giving ui entitlement to workers quitting their jobs voluntarily in order to search for another one results of the model calibrated to the us labor market show that there may be significant welfare gains associated with pursuing a generous entitlement policy for quitters as compared to the us status quo moreover i employ the assumption of monetary search costs and show that it can explain the empirically documented unemployed worker search behavior finally by inducing different unemployment benefit eligibility requirements the model identifies a concrete policy that could help us understand differences in the unemployment rate match quality and income inequality between the us and europe

symmetric equilibrium existence and optimality in differentiated product markets abstract equilibrium existence and optimality are analysed in a market for products differentiated by their variety a game of three stages is analysed firms enter in the first stage choose varieties in the second stage and choose prices in the third stage the existence of subgame perfect equilibria is established at equilibrium products are symmetrically located in the space of characteristics and are offered at equal prices the surplus maximizing solution is characterized and it is shown that surplus maximizing product diversity is lower than the equilibrium one

implications of keeping up with the joneses behavior for the equilibrium cross section of stock returns international evidence this paper tests the cross sectional implications of keeping up with the joneses kuj preferences in an international setting when agents have kuj preferences in the presence of undiversifiable nonfinancial wealth both world and domestic risk the idiosyncratic component of domestic wealth are priced and the equilibrium price of risk of the domestic factor is negative we use labor income as a proxy for domestic wealth and find empirical support for these predictions in terms of explaining the cross section of stock returns and the size of the pricing errors the model performs better than alternative international asset pricing models

disappointment and dynamic consistency in choice under uncertainty the central proposition of disappointment theory is that an individual forms expectations about uncertain prospects and that if the actual consequence turns out to be worse than or better than that expectation the individual experiences a sensation of disappointment or elation generating a decrement or increment of utility which modifies the basic utility derived from the consequence by incorporating a simple disappointment elation function into a model of individual choice many observed violations of conventional expected utility axioms including violations of savage s sure thing principle and the isolation effect can be predicted and defended as rational and dynamically consistent behaviour

demand uncertainty mismatch and un employment we consider a finite number of firms which compete imperfectly for heterogeneous workers firms produce a homogeneous good sold on a competitive market and face demand induced price fluctuations it is then shown that unemployment may arise in equilibrium because of both uncertainty of product demand and job mismatch unemployment does not arise however when the variance of the demand shock is small enough and or the cost of mismatch is sufficiently low full employment always prevails when there is free entry hence unemployment may persist as long as the incumbent firms choose their skill requirements to protect their supernormal profits

why is consumption so smooth for thirty years it has been accepted that consumption is smooth because permanent income is smoother than measured income this paper considers the evidence for the contrary position that permanent income is in fact less smooth than measured income so that the smoothness of consumption cannot be straightforwardly explained by permanent income theory the paper argues that in postwar u s quarterly data consumption is smooth because it responds with a lag to changes in income

unemployment responses to skill biased technology shocks the role of labour market policy do skill biased shocks that increase the spread of labour productivities interacting with different policy regimes explain the rise in unemployment in europe relative to the united states in the 1980s and 1990s the hypothesis is an implication of a version of the mortensen and pissarides 1994 model of equilibrium unemployment which allows for worker heterogeneity a calibrated version of the model implies that a similar unemployment increase would have occurred in the united states over this period given changes in relative productivity by education implied by observed wage changes had unemployment compensation and employment protection policies been at european levels

optimal consumption and portfolio policies when asset prices follow a diffusion process abstract we consider a consumption portfolio problem in continuous time under uncertainty a martingale technique is employed to characterize optimal consumption portfolio policies when there exist nonnegativity constraints on consumption and on final wealth we also provide a way to compute and verify optimal policies our verification theorem for optimal policies involves a linear partial differential equation unlike the nonlinear partial differential equation of dynamic programming the relationship between our approach and dynamic programming is discussed we demonstrate our technique by explicitly computing optimal policies in a series of examples in particular we solve the optimal consumption portfolio problem for hyperbolic absolute risk aversion utility functions when the asset prices follow a geometric brownian motion the optimal policies in this case are no longer linear when nonnegativity constraints on consumption and on final wealth are included by these examples one can see that our approach is much easier than the dynamic programming approach

unemployment labour markets and structural change in eastern europe labour markets in eastern europe michael burda unemployment is a major concern in the transforming economies of central and eastern europe the modern flow approach to labour markets suggests both that unemployment is an important component of the transformation process and that the labour market institutions adopted will influence the rate of unemployment in the long run to date eastern european countries exhibit considerable divergences in several of these institutions especially in unemployment benefit systems collective bargaining structures and active labour market policies an aggregate matching function is successfully estimated for data from czech and slovak employment offices emerging labour markets in the east function not so differently from those in the west the implied dynamics make both big bang and benign neglect unattractive strategies for transformation a mixed bang is more appropriate quantitative evidence about the effects on unemployment of different labour market institutions in oecd countries is used to make long term projections of equilibrium rates of unemployment in central and eastern europe given the labour market institutions now in place there with the possible exception of the czech republic high unemployment is likely to be pervasive and persistent

power couples changes in the locational choice of the college educated 1940 1990 college educated couples are increasingly located in large metropolitan areas these areas were home to 32 percent of all college educated couples in 1940 39 percent in 1970 and 50 percent in 1990 we investigate whether this trend can be explained by increasing urbanization of the college educated or the growth of dual career households and the resulting severity of the colocation problem we argue that the latter explanation is the primary one smaller cities may therefore experience reduced inflows of human capital relative to the past and thus become poorer

solving consumption models with multiplicative habits this paper provides derivations necessary for solving an optimal consumption problem with multiplicative habits and a crra outer utility function either for a microeconomic problem with both labor income risk and rate of return risk or for a macroeconomic representative agent model

skill mismatch and unemployment we consider a finite number of heterogeneous firms which compete imperfectly for heterogeneous workers we show that unemployment may arise in equilibrium because of job mismatch and firms market power

benefit duration and unemployment entry a quasi experiment in austria apart from being an important aspect of job search behavior of individuals potential bene t duration can also have e2ects on unemployment entry rates in this paper the causal connection between the two is investigated for the case of austria using a quasi experimental situation that arose following the enactment of a law that extended bene t duration for older workers in speci c regions of the country unemployment entry is found to have risen between 4 and 11 percentage points due to the new law several robustness checks are presented to see if a causal interpretation of this result is possible preliminary analysis shows that this increase in unemployment entry can be best understood not as voluntary quits but layo2s by rms who want to get rid of high tenured and expensive older workers c

discrimination and open unemployment in a segmented labour market jobs in the primary sector require firm specific training with wages determined as a result of bargaining firms pay for the training and since they are imperfectly informed about worker productivity they test workers before hiring them the secondary sector is competitive taking a job in the secondary sector signals low productivity and therefore workers in the secondary sector are unable to get jobs in the primary sector open unemployment coexists with unfilled vacancies for low wage jobs

cross section estimation of the matching function evidence from england and wales this paper analyses how the levels of unemployment and vacancies affect the rate at which unemployed workers find employment the worker firm matching function in particular we test the robustness of previous empirical work by checking whether we obtain the same estimated function using cross section data rather than aggregate time series data we find strong evidence of constant returns to scale similar to previous work we also find larger cities have higher wages this provides indirect support for increasing returns but where those returns are taken in the form of better quality matches

theoretical foundations for sticky wages abstract the paper compares three different types of theoretical explanation of sticky wages they are implicit contracts efficiency wage models and insider outsider models it then reconsiders keynes rationale for sticky wages which focuses on relative wage issues finally the paper considers possible directions for future research

thick market effects and churning in the labor market evidence from u s cities using u s census microdata we show that on average workers change occupation and industry less in more densely populated areas the result is robust to standard demographic controls as well as to including aggregate measures of human capital and sectoral mix analysis of the displaced worker surveys shows that this effect is present in cases of involuntary separation as well on the other hand we actually find the opposite result higher rates of occupational and industrial switching for the subsample of younger workers these results provide evidence in favor of increasing returns to scale matching in labor markets results from a back of the envelope calibration suggest that this mechanism has an important role in raising both wages and returns to experience in denser areas

dynamic specifications in optimizing trend deviation macro models abstract as noted in surveys by goodfriend and king in b bernanke j rotemberg eds nber macroeconomics annual mit press cambridge ma 1997 pp 231 283 and walsh monetary theory and policy mit press cambridge ma and exemplified by models analyzed in taylor 1999 there is encouraging progress in developing optimizing trend deviation macro models that provide useful insights into the transmission and design of monetary policy several controversial features of a minimalist trend deviation model with optimizing households firms and bond traders are examined dynamic specifications are suggested to improve the data based realism while preserving the simplicity of the minimalist model

labor supply flexibility and portfolio choice in a life cycle model abstract this paper examines the effect of the labor leisure choice on portfolio and consumption decisions over an individual s life cycle the model incorporates the fact that individuals may have considerable flexibility in varying their work effort including their choice of when to retire given this flexibility the individual simultaneously determines optimal levels of current consumption labor effort and an optimal financial investment strategy at each point in his life cycle we show that labor and investment choices are intimately related the ability to vary labor supply ex post induces the individual to assume greater risks in his investment portfolio ex ante

asset pricing with multiplicative habit and power expo preferences abstract multiplicative habit introduces an additional consumption risk as a determinant of the equity premium and allows time preference and habit strength in addition to risk aversion to affect the price of risk a model combining multiplicative habit and power expo preferences cannot be rejected

consumption and portfolio choice under internal multiplicative habit formation this paper explores the optimal consumption and investment behavior of an individual who derives utility from the ratio between his consumption and an endogenous habit we obtain closed form policies under general utility functionals and stochastic investment opportunities by developing a nontrivial linearization to the budget constraint this enables us to explicitly characterize how habit formation affects the marginal propensity to consume and optimal stock bond investments we also show that in a setting that combines habit formation with epstein zin utility consumption no longer grows at unrealistically high rates at high ages and investments in risky assets decrease

efficiency wages and the quality of job matching abstract we introduce the quality of job matching in the effort function in order to calculate the efficiency wage we consider two cases in the first one the quality of the match is perfectly observable by the firm and we show that the equilibrium unemployment level is due to both high wages and mismatch in the second case we assume that job matching is a random variable and we show that there are some regions in which the efficiency wage raise generates an effort greater than the initial wage increase and others where the reverse prevails

discount rate heterogeneity and social security reform abstract as many countries consider the privatization of existing pay as you go social security systems the option to make participation in the new system voluntary may appeal to policy makers who need to obtain the political support of their workers a critical issue in evaluating such a reform and its economic consequences is the unobserved heterogeneity in households preferences for consumption this paper estimates the distribution of rates of time preference from the wealth data in the survey of consumer finances 1992 and a flexible life cycle model of consumption under income uncertainty the estimated distribution is then applied to a variety of reform proposals that incorporate a voluntary choice of how much to contribute to a dedicated retirement account and a rebate of the existing payroll tax that increases with the magnitude of the contribution the main finding is that an appropriate menu of reform plans can induce the voluntary buy out of 84 of existing payroll taxes at an immediate cost to national saving of less than 0 25 percentage point

on socioeconomic causes of wait unemployment abstract this paper discusses implications of wait unemployment in a two sector model with a dual labour market primary sector firms pay efficiency wages the wage rate in the secondary sector is determined by labour supply and demand most queueing models assume that workers for the primary sector are only recruited from the pool of unemployed instead this paper explains wait unemployment by assuming that people care about their relative status in society the model is presented in general terms and a closed form solution is obtained by specifying functional forms the results emphasize the need for proper manpower policies to reduce structural unemployment

economic reform in czechoslovakia should we believe in santa klaus czechoslovakia david begg between the wars czechoslovakia was a prosperous market economy important legacies remain but 40 years of planning have caused severe distortions can czechoslovakia again become the jewel in the crown of eastern europe reforms began later than in hungary and poland but are now proceeding apace traditional sequencing of reforms is unwise micro reforms deserve greater priority and themselves affect macro credibility monetary and fiscal policies are intended to be tight but worries remain wage indexation a fuzzy exchange rate commitment and rising unemployment enterprise reform divides into better internal and external incentives privatization will be impeded by restoration of property to former owners and in any case is insufficient problems of corporate control will remain and inadequate attention is being given to incentives for state owned enterprises better external incentives require more foreign competition still limited tougher domestic competition policy still inadequate attention to banks and credit where bankruptcy is hard to enforce and balance sheets should be restructured and a temporary wage subsidy activities with negative value added at world prices should cease other activities would be more efficiently supplied through imports i discuss the principles governing the pace of intelligent restructuring and assess the prospects for its success in czechoslovakia

implicit contracts a survey 7mplicit contracts resolve the distribution of uncertainty and utilization of specific human capital between risk averse workers and less risk averse firms incomplete contracts are required to yield involuntary layoffs in contract markets otherwise contracts are efficient and pareto optimal by construction there is a close relation between contract theory and neoclassical labor market theory contracts smooth consumption but increase the volatility of labor supply and labor utilization to demand disturbances because contractural insurance eliminates the income effects of socially diversifiable risks this result is similar to the intertemporal substitution hypothesis however the price mechanism in a contract is substantially different contracts embody a nonlinear two part pricing scheme the lump sum part allocates the income consumption consequences of risks and the marginal pricing part allocates production and labor utilization this implicit pricing mechanism is in all respects flexible though the observed average hourly wage combines both parts and may give the outward appearanceof rigidity furthermore the observed average wage rate in a contract does not reflect marginal conditions necessary for structural econometric estimation indivisibilities appear necessary to account for the split between work sharing and layoffs contracts with private information are also considered in the nonlinear pricing context this abstract was borrowed from another version of this item

wait unemployment in europe unemployment michael burda the sustained increase in unemployment rates in western europe is a major policy problem not least because of the increasing significance of long term unemployment a large part of cross country differences in long term unemployment rates can be predicted by a simple model of wait unemployment potential workers may refuse low paying jobs and invest in unemployment if this increases the chance that they will subsequently be offered a higher paying job this investment decision is sensitive both to the level of unemployment benefit and to its duration and coverage of the labour force more generous unemployment benefit will tend to increase average unemployment rates the analysis can also explain how increases in the labour force contribute to unemployment and why service sector employment has grown more slowly in europe than in the us over the past 15 years unemployment benefit is not set in a vacuum the paper also considers forces governing the evolution of benefit rates and entitlements during the period

the nature and causes of unemployment in the federal republic of germany since the seventies an empirical investigation the leading economic problem of our time is the high and persistent level of unemployment as of early 1985 there are no signs that the severity of unemployment will weaken within the near future this paper discusses first some basic developments of labour supply and labour demand in the federal republic of germany frg the composition of the labour supply and the structure of the labour demand for persons and hours worked as well as the dynamics of the unemployment pool the next section reviews very briefly some empirical findings explaining the rise in the nairu where we make the distinction between the no shock and the actual nairu following suggestions put by the organizers of the conference we then elaborate on the employment function in the empirically oriented literature most employment functions use labour services i e total hours worked as the dependent variable thus assuming homogeneity of labour demand with respect to jobs and working hours in the german political arena however the distinction between persons employed and hours worked is particularly important first it figures in the employment aims of labour unions who request reductions in weekly working hours in order to induce higher manning second the distinction arises in the context of overtime work for it has been suggested that the reduction in overtime to standard working hours could create more than 1 million new jobs in germany we present some estimated labour demand functions which take into account these two dimensions of labour demand jobs and hours and which are used to elaborate on the direction and magnitude of the employment effects of reductions in wage costs and increases in overtime premia

the role of selective job search in uk unemployment selective search where unemployed job losers confine their job seeking efforts to matches in the pre separation sector has attracted consid erable attention as a possible source of high and persistent unemployment however this idea is questionable those opting for selection may do so because this strategy is more effective at gener ating an acceptable offer using uk microdata i find evidence in support of the latter view selective searchers cannot account for the persistence of high unemployment since the early 1980s

corporatism run amok job stability and industrial policy in belgium and the united states corporatism jonathan s leonard and marc van audenrode in explaining high and persistent unemployment in western europe as compared to the united states this article shifts the emphasis away from the now familiar institutions and policies directly related to the labour market instead it focuses on the active and pervasive industrial policies which distinguish many european countries from the united states during the seventies and eighties a large share of european countries industrial policy has been directed towards schemes to help declining firms and industries using the example of belgium we show that this policy of supporting declining industries has actually contributed to higher unemployment through two channels first the subsidization of failing firms has imposed a tax on growing firms which has contributed to the freezing of the labour market and to low levels of job creation second by partially insuring against the threat of business failure the policy has contributed to the rapid growth of real wages

adaptability productivity and educational incentives in a matching model abstract we study the connections between the labour market and the education sector in a matching framework with ex post wage bargaining workers have multidimensional skills and the search market is segmented by technology education is a time consuming activity and determines jointly the scope or adaptability and intensity or productivity of individual skills we establish three main results first unemployment provides incentives to schooling by raising the need for adaptability second private returns to productivity are below social returns but no hold up phenomenon is involved third due to wage and congestion externalities private returns to adaptability exceed social returns as a consequence both over and under education may take place in equilibrium

labor specialization and the extent of the market this paper presents an analytical model of labor specialization workers make human capital investment decisions on the depth and the breadth of their skill given that firms have diverse job requirements and increasing returns to scale workers invest more for the depth of their human capital and less for the breadth as the size of the labor market increases also the larger the size of the market the more varieties of job requirements are used so that the average match between a worker and a firm improves

the role of spatial and skill mismatches explaining long term unemployment in paris in the paris region one can observe simultaneously the coexistence of a large and dynamic job pool with long lasting periods of unemployment this paradox reveals the importance of skill and spati

reference dependent consumption plans we develop a rational dynamic model in which people are loss averse over changes in beliefs about present and future consumption because changes in wealth are news about future consumption preferences over money are reference dependent if news resonates more when about imminent consump tion than when about future consumption a decision maker might to generate pleasant surprises overconsume early relative to the optimal committed plan increase immediate consumption following surprise wealth increases and delay decreasing consumption following surprise losses since higher wealth mitigates the effect of bad news people exhibit an unambiguous first order precautionary savings motive