are contributions to public pension programmes a tax on employment many studies describe the potentially adverse impact on employment of the payroll costs of financing public pension programmes conventionally empirical studies treat contributions to public pension programmes as a pure tax in for example calculations of the tax wedge by oecd but this approach ignores any future rights to benefits that are perceived by contributors in fact public pension programmes contain both an actuarial and a redistributive component the former closer to saving the latter a tax the paper constructs indicators of the tax component of pension programmes both between and within generations across a range of oecd countries and time periods it uses these measures in a cross country panel analysis of the determinants of age and gender specific economic activity rates the results reveal robust evidence that when public pension programme contributions are broken down into a tax component and a savings component the tax component of the payroll contribution reduces economic activity rates among women while a higher retirement saving component has the opposite effect there is little evidence that average tax rates however constructed have any adverse impact on the economic activity rates of men richard disney

reforming taxes and raising revenue part of the fiscal solution this paper reviews the fiscal outlook in the united states discusses why revenue increases are a critical aspect of any enduring fiscal solution and outlines constructive policies to reform the tax system and simultaneously raise revenues in particular this paper highlights the merits of curtailing income tax expenditures introducing a value added tax and imposing levies on consumption and production of non renewable energy copyright 2011 oxford university press

saving puzzles and saving policies in the united states in the past two decades the widely reported personal saving rate in the united states has dropped from double digits to below zero first we attempt to account for the decline in the national income and product accounts nipa saving rate the macroeconomic literature suggests that 40 50 per cent of the drop since 1988 can be attributed to households spending stock market capital gains another 30 per cent is accounting transfers from personal saving into government and corporate saving because of the way pensions and capital gains taxes are treated in the nipa second while nipa saving measures are well suited to measuring the supply of new funds for investment and capital accumulation it is not clear that they should be the target of government saving policies finally we emphasize that the nipa saving rate is not useful in judging whether households are preparing for retirement or other contingencies many households have accumulated significant wealth primarily through retirement saving vehicles and capital gains even as the saving rate slid there remains a segment of the population who save little and whose behaviour appears untouched either by the stock market boom or the slide in personal saving we explore reasons and policy options for their puzzling low saving rate copyright 2001 oxford university press

public policy and saving in the united states and canada canadians have largely unrestricted access to tax preferred saving through the registered retirement saving plan rrsp programs no comparable program exists in the united states previous research has noted that household saving in canada grew relative to saving in the united states after the rrsp program was initiated suggesting that a program like the rrsp can increase saving this paper shows that the difference in household saving in the united states and in canada is more plausibly characterized as a simple life cycle response to differences in the overall intertemporal income reallocation built into tax and public pension systems rather than as a response to rrsp availability

the illusory effects of saving incentives on saving the authors evaluate research on how tax based saving incentives iras and 401 k s affect saving previous research overstates the impact of the incentives on saving by failing to account for several issues households with saving incentives have stronger tastes for saving than others saving incentives have interacted with debt nonfinancial assets financial markets and pensions and saving incentives represent pretax balances whereas taxable accounts represent posttax balances accounting for these issues essentially eliminates the impact of saving incentives on saving the authors conclude that little if any of the contributions to existing saving incentives have raised saving

how deep is the annuity market participation puzzle using microeconomic data for the united kingdom we analyze the empirical determinants of voluntary annuity market demand we find that annuity market participation increases with financial wealth life expectancy and education and decreases with other pension income and a possible bequest motive for surviving spouses we then show that these empirically motivated determinants of annuity market participation have the same quantitatively important effects in a life cycle model of annuity and life insurance demand saving and portfolio choice moreover reasonable preference parameters predict annuity demand levels comparable to the data for stockholders a strong bequest motive can simultaneously generate balanced portfolios and low annuity demand

do tax incentives for saving in pension accounts cause debt accumulation evidence from danish register data abstract this paper applies a quasi experimental research design on a danish 2010 policy that reduced tax incentives for saving in annuity pension schemes to show significant substitution of savings from retirement accounts to gross debt repayments we find that for every 1 danish currency unit reduction in retirement savings 31 cents goes to debt repayments taking into account all types of savings we find full crowding out consistent with previous findings we document that the effect is driven by a minority about 23 percent who actively rebalance their savings

pension wealth and household saving evidence from pension reforms in the united kingdom using three major u k pension reforms as natural experiments we investigate the relationship between pension saving and discretionary private savings unlike most differences in differences approaches which rely on average differences between control and treatment group we use economic theory to model the response of each individual household the empirical analysis based on the family expenditure survey uses both time series and cross sectional variation to identify the behavioral response the earnings related tier of the pension scheme is found to have a negative impact on private savings with relatively high substitution elasticities the impact of the flat rate tier is not significantly different from zero jel h55 h91 the relationship between pension wealth and household savings is crucial for important policy issues such as establishing the effects of changes in pension legislation on saving behavior from a theoretical point of view the lifecycle framework suggests that the provision of public benefits after retirement constitutes a negative incentive to accumulate wealth during one s working life quantifying the resulting relationship between pension wealth and saving even within a simple theoretical frame

pension plan characteristics and framing effects in employee savings behavior abstract defined contribution pensions in many postsecondary institutions are funded by a combination of an employer premium and a mandatory employee premium individuals can also contribute to a supplemental savings account holding constant total compensation standard reasoning suggests that supplemental savings should depend negatively on the sum of the employer and employee pension contributions contrarily we find that the supplementary savings of professors are significantly more sensitive to employee contributions than to employer contributions this asymmetry is consistent with different marginal propensities to save out of the salary and pension components of compensation nevertheless impacts on lifetime utility are relatively modest

the effects of public pensions on private wealth evidence on the german savings puzzle based on german panel data between 1984 and 1999 we test for the interaction of social security benefits and private wealth formation in a simple life cylce model benefits from public pension systems should displace equal amounts of private retirement accumulation our estimate for the offset effect corrected for several possible measurement biases is much lower however than expected from pure life cycle considerations and less than comparable estimates for the us and the uk this result thus supports other evidence on a particular german savings puzzle which might be due to market imperfections and or bounded rational behaviour

disentangling retirement and savings responses in january 2006 the dutch government implemented a pension reform that substantially reduced the public pension wealth of workers born in 1950 or later at the same time a tax facilitated savings plan was introduced that implied a large savings subsidy for all workers irrespective of birth year this paper uses linked administrative and survey data to assess the effect of the reform on the savings and retirement expectations and realizations of two virtually identical male cohorts that differ only in treatment status the treated having been born in 1950 and the controls having been born in 1949 we show that retirement expectations are in line with realizations and that the reform increased the labor supply for the larger part of the workers namely those without sufficient means to substantially increase private savings to counter the effect of the reform these workers have zero substitution rates between private and public wealth on the other hand there is a group of mostly high wage workers who participate in the tax facilitated savings plan and increase their private savings to fully counter the impact of the drop in public wealth an unintended side effect of the introduction of the tax facilitated savings plan is that high wage earners who are not affected by the drop in pension wealth retire even sooner than initially planned

how retirement saving programs increase saving this paper summarizes the authors work on the effect of ira and 401 k contributions on net personal saving they consider many different nonparametric approaches to controlling for heterogeneity in individual saving behavior and conclude that the weight of the available evidence suggests that contributions to both iras and 401 k s largely represent new saving the authors devote particular attention to reconciling their results with the findings in other studies that reach different conclusions sometimes using the same databases that the authors analyze methodological limitations that undermine the reliability of results in other studies explain many of these disparities

the nature of precautionary wealth abstract this paper uses the panel study of income dynamics to provide some of the first direct evidence that wealth is systematically higher for consumers with predictably greater income uncertainty however the apparent pattern of precautionary wealth is not consistent with a standard parameterization of the life cucle model in which consumers are patient enough to begin saving for retirement early in life wealth is estimated to be far less sensitive to uncertainty than implied by that model instead our results suggest that over most of their working life time consumers behave in accordance with the buffer stock models of saving described in carroll 1992 1997 or deaton 1991 in which consumers hold wealth principally to insulate consumption against near term fluctuations in income

new evidence on canadian wage rates 1900 1930 this paper shows there are serious errors in published canadian nominal wage data and presents hourly wage series developed from firm records for machinists helpers and laborers employed by the canadian pacific railway between 1900 and 1930 this new evidence suggests that real wage growth in canada was faster than previously believed and that there were substantial changes in wage inequality

personnel policies at the union bank of australia evidence from the 1888 1900 entry cohorts this article uses personnel payroll and other records from the union bank of australia to examine internal labor markets it is shown that employment was characterized by limited ports of entry impersonal rules for pay and promotion well defined career ladders shielding from the external labor market and a long term employment relationship in addition tenure within the bank was rewarded considerably more than experience elsewhere and compensation increased considerably after 25 30 years tenure these facts are partially consistent with the human capital matching and contract theory models but cannot be fully explained by any one model

pension coverage and retirement savings of young and prime aged workers in canada 1986 1997 in this paper we assemble data from several household surveys to document how pension coverage of young and prime aged workers has evolved in canada between the mid 1980s and the mid 1990s we show that between 1986 and 1997 pension coverage has fallen significantly for men has dropped slightly for young women and has increased for prime aged women the decline in union density and employment shifts towards low coverage industries explain most of the decline in pension coverage of men and young women in contrast most of the increase in coverage of prime aged women remains unexplained while pension coverage has fallen for men and young women their real average contributions to registered retirement savings plan rrsps have increased substantially as a result the sum of the amounts they contributed to registered pension plans rpps and rrsps has increased markedly jel classification j26 j32 couverture des regimes de rentes et epargnes pour la retraite des travailleurs jeunes et de ceux dans la force de l ge au canada 1986 1997 dans ce memoire les auteurs assemblent des donnees de plusieurs enquetes sur les menages pour documenter l evolution de la couverture des regimes de rentes des travailleurs jeunes et dans la force de l ge entre le milieu des annees 80 et le milieu des annees 90 on montre que cette couverture a chute de maniere significative pour les hommes a decline legerement pour les femmes et s est accrue pour les femmes dans la force de l ge la chute du taux de syndicalisation et les deplacements de l emploi vers des secteurs ou la couverture est plus faible expliquent le gros du declin de couverture pour les hommes et les jeunes femmes quant a l accroissement de la couverture pour les femmes dans la force de l ge il demeure inexplique alors que la couverture des deux premiers groupes a decline leurs contributions aux regimes enregistres d epargne retraite reer ont augmente substantiellement en consequence le total des sommes qu ils ont contribuees aux regimes de rentes enregistres et aux reer ont augmente de maniere importante

savings in times of demographic change lessons from the german experience pension reforms in many developed countries make individuals shoulder a bigger share of longevity and income risks the desired response is that individuals accumulate private assets for retirement whether this actually takes place is of paramount relevance for scientists and policy makers we take germany as an example twenty years of pension reform have transformed the monolithic german pension system into a multi pillar system formerly generous public pension benefits are gradually being reduced while substantial incentives are granted to occupational and private saving schemes has this transition worked out we survey the reform steps and household s reactions how did individuals adjust their labor market behavior how did private and occupational pension plans take off how do behavioral adjustments vary in the population most germans adapted to the new situation both actual and expected retirement decisions changedand the share of households without supplementary pensions decreased from 73 to 39 in little more than a decade this is a remarkable success nonetheless households with low education low income and less financial education did neither adjust their retirement behavior nor pick up supplementary pension plans and are thus likely to face difficulties in bridging the gap arising in future pension income

does television entry decrease the number of movie theaters this paper empirically examines the impact of competition in the television tv industry on the number of movie theaters their attendance and their box office revenues studies of firm entry usually focus on the impact of regulation on economic outcomes within an industry thereby neglecting its impact on neighboring industries using changes in regulation in the spanish local tv station industry we estimate the impact of tv entry on the movie theater industry between 1993 and 2005 our findings show that local tv entry decreased the number of theaters and screens in a province as well as movie attendance and box office revenues jel l11 l43 l82

computable markov perfect industry dynamics we provide a general model of dynamic competition in an oligopolistic industry with investment entry andexit toensurethatthereexistsacomputationallytractablemarkov perfectequilibrium we introduce firm heterogeneity in the form of randomly drawn privately known scrap values and setup costs into the model our game of incomplete information always has an equilibrium in cutoff entry exit strategies in contrast the existence of an equilibrium in the ericson and pakes model of industry dynamics requires admissibility of mixed entry exit strategies contrary to the assertion in their article that existing algorithms cannot cope with in addition we provide a condition on the model s primitives that ensures that the equilibrium is in pure investment strategies building on this basic existence result we first show that a symmetric equilibrium exists under appropriate assumptions on the model s primitives second we show that as the distribution of the random scrap values setup costs becomes degenerate equilibria in cutoff entry exit strategies converge to equilibria in mixed entry exit strategies of the game of complete information

have iras increased u s saving evidence from consumer expenditure surveys the vast majority of individual retirement account contributions represent net new saving based on evidence from the quarterly consumer expenditure surveys ces the results are based on analysis of the relationship between ira contributions and other financial asset saving the data show almost no substitution of iras for other saving estimates are based on a flexible constrained optimization model with the ira limit the principal constraint the implications of this model for saving in the absence of the ira option match very closely the actual non ira financial asset saving behavior prior to 1982 ira saving does not show up as other financial asset saving in the pre ira period

downward nominal wage rigidity evidence from canada 1901 1950 this paper tests for the presence of downward nominal wage rigidity in canadian wage data for 26 occupations in 38 cities from the first half of the 20th century the sample is of particular interest as it contains periods with average inflation rates that are close to zero as well as two sharp deflations results from a variety of different tests indicate that wage change distributions are consistent with the presence of downward nominal wage rigidity however for two subsamples containing sharp declines in output and prices estimates of the extent of downward nominal wage rigidity are much lower this suggests that downwards adjustments did occur during times of severe depression and deflation

political economy of pension plans impact of institutions gender and culture abstract national pension systems are an important part of financial intermediation and worker welfare in most countries but how and why do they differ internationally controlling for important political economic and social institutions we document that international differences in pension progressivity or how pensions reflect lifetime earnings are negatively related to masculinity uncertainty avoidance individualism long term orientation employment rights average pension levels social trust and economic inequality we also find that pension progressivity is positively related to the economic and societal role of women the extent of catholicism as well as political voice and accountability these results provide important insights for both public policy and mnc managers

tax reform and retirement saving incentives take up of stakeholder pensions in the uk in april 2001 the uk government introduced stakeholder pensions a new private pension arrangement the reform also changed the structure of tax relieved pension contribution ceilings increasing their generosity for lower earners we examine the impact of these changes on private pension coverage using individual level data we use a difference in differences strategy with an estimator that is modified to allow for dichotomous outcomes contrary to the conventional wisdom that the stakeholder pension reforms had little or no impact on saving behaviour our results indicate that the change to the contribution ceilings affected private pension coverage rates among lower earners especially among women

the spectre of deflation a review of empirical evidence what explains the widespread fear of deflation this article reviews the history of thought economic history and empirical evidence on deflation with a view to answering this question it also outlines informally the main effects of deflation in applied monetary models the main finding is that for both historical and contemporary deflations there are many open empirical questions that could be answered using the tools economists use to study inflation and monetary policy more generally qu est ce qui explique la peur tres repandue de la deflation ce memoire fait un tour d horizon de l histoire de la pensee economique de l histoire economique et des resultats empiriques quant aux effets de la deflation en vue de repondre a cette question on fait aussi echo informellement aux effets principaux de la deflation dans les modeles monetaires appliques ce qui ressort principalement de ce travail est que tant pour les deflations dans l histoire que dans le monde contemporain il y a bien des questions empiriques encore irresolues auxquelles on pourrait donner une reponse en utilisant l outillage mental que les economistes utilisent pour etudier l inflation et la politique monetaire plus generalement sp c tre n thing that is thought to be seen but has no material existence haunting presentiment of ruin war madness etc

free entry and social inefficiency our goal is to provide a simple yet general exposition of the conditions under which the number of entrants in a free entry equilibrium is excessive insufficient or optimal our analysis compares the number of firms that enter a market when there is free entry with the number that would be desired by a social planner who is unable to control the behavior of firms once they are in the market that is we consider the second best problem of choosing the welfare maximizing number of firms while we take as given their noncompetitive behavior after entry we demonstrate that the crucial conditions for establishing the presence of an entry bias can be stated quite simply in terms of the outcome of the postentry game played by entrants in contrast to previous work we do not need to model this postentry game explicitly

the effect of local competition on admission prices in the u s motion picture exhibition market abstract this paper provides empirical evidence on the relationship between local market structure and the prices charged to consumers in the u s motion picture exhibition market i find that there is a statistically significant relationship between the geographic distribution of movie theaters in a market and the admission prices that they are able to charge however the magnitude of the price reducing effect of local competition appears to be economically modest moreover i find no evidence that increases in geographic concentration lead to increased adult admission prices the findings are directly relevant to merger policy in the industry and pertinent because of the dramatic changes in industry structure resulting from mergers that occurred during 2002 i conclude that the available evidence suggests that popular and governmental concerns about horizontal mergers in the industry leading to dramatically increased admission prices are likely misplaced

how strong are bequest motives evidence based on estimates of the demand for life insurance and annuities this paper presents new empirical evidence in support of the view that a significant fraction of total saving is motivated by the desire to leave bequests specifically i find that social security annuity benefits significantly raise life insurance holdings and depress private annuity holdings among elderly individuals these patterns indicate that the typical household would choose to maintain a positive fraction of its resources in bequeathable forms even if insurance markets were perfect evidence on the relationship between insurance purchases and total resources reinforces this conclusion

demand fluctuations in the ready mix concrete industry i investigate the role of demand shocks in the ready mix concrete industry using census data on more than 15 000 plants i estimate a model of investment and entry in oligopolistic markets these estimates are used to simulate the effect of eliminating short term local demand changes a policy of smoothing the volatility of demand has a market expansion effect the model predicts a 39 increase in the number of plants in the industry since bigger markets have both more plants and larger plants a demand smoothing fiscal policy would increase the share of large plants by 20 finally the policy of smoothing demand reduces entry and exit by 25 but has no effect on the rate at which firms change their size

learning by doing organizational forgetting and industry dynamics learning by doing and organizational forgetting have been shown to be important in a variety of industrial settings this paper provides a general model of dynamic competition that accounts for these economic fundamentals and shows how they shape industry structure and dynamics previously obtained results regarding the dominance properties of flrms pricing behavior no longer hold in this more general setting we show that forgetting does not simply negate learning rather learning and forgetting are distinct economic forces in particular a model with learning and forgetting can give rise to aggressive pricing behavior market dominance and multiple equilibria whereas a model with learning alone cannot

a theory of exit in duopoly we develop a duopoly model in which exit occurs because of the existence of fixed costs or opportunity costs each firm enters the market knowing its own cost but not that of its opponent as times goes on each firm becomes increasingly pessimistic about the cost of its remaining rival the time of exit is the only strategic variable so that our model is a war of attrition in contrast to the classic war of attrition however we assume that with positive probability each firm s costs may be low enough that staying in forever is a dominant strategy thus our model unlike the classic one has a unique equilibrium

what is a promise from the government worth quantifying political risk in state and personal pension schemes in the united kingdom there are three key types of political risk facing pension schemes those induced by demographic economic and pure political factors the state scheme in the united kingdom has been susceptible to all three types since 1980 with the result that the annual real internal rate of return on the second pillar state pension for the average male worker fell from 5 1 to 1 5 over 25 years the flat rate first pillar basic state pension has also experienced a fall in its irr of 3 percentage points as a result of the indexation basis changing from earnings to prices

pension wealth and household savings tests of robustness abstract a substantial literature exists on the impact of pension schemes both public and private on the level of household saving yet there is no clear consensus on the impact of pensions on private saving in this paper we show how beliefs about this displacement effect are modified by prior beliefs both about variables which might be relevant in an equation for private savings and about the magnitude of the displacement effect using data for 8279 canadian households and estimates of pension wealth both private and social security which we construct for each household in the sample the estimated displacement effects are found to be relatively robust with respect to both types of prior belief

the optimal allocation of prizes in contests we study a contest with multiple not necessarily equal prizes contestants have private information about an ability parameter that affects their costs of bidding the contestant with the highest bid wins the first prize the contestant with the second highest bid wins the second prize and so on until all the prizes are allocated all contestants incur their respective costs of bidding the contest s designer maximizes the expected sum of bids our main results are 1 we display bidding equlibria for any number of contestants having linear convex or concave cost functions and for any distribution of abilities 2 if the cost functions are linear or concave then no matter what the distribution of abilities is it is optimal for the designer to allocate the entire prize sum to a single first prize 3 we give a necessary and sufficient conditions ensuring that several prizes are optimal if contestants have a convex cost function

the economic effects of social security toward a reconciliation of theory and measurement abstract in this paper we argue that actuarial valuation of social security benefit streams is theoretically inconsistent with the assumption of pure life cycle motives instead we show that the simple discounted value of future benefits ignoring the possibility of death is often a good approximation to the relevant concept of value this observation motivates a re examination of existing empirical evidence concerning the economic effects of social security we focus our attention on studies of distributional equity and personal saving behavior in both cases we argue that the use of simple rather than actuarial discounting of survival contingent income streams produces results that differ dramatically from previous findings specifically estimates based on actuarial valuation may overstate the importance of redistribution between and within generations and may understate the depressive effect of social security on personal wealth accumulation by a factor of three or more

estimating a war of attrition the case of the us movie theater industry this paper estimates the impact of competition and exogenous demand decline on the exit process of movie theaters in the us from 1950 1965 i modify fudenberg and tirole 1986 s model of exit in a duopoly with incomplete information to an oligopoly i estimate this model with panel data using variations in tv diusion across house holds and other market characteristics to identify the parameters in the theater s payo function and the distribution of unobservable exit values using the estimated model i show that theaters who are making negative pro ts may choose to remain in the market if they expect to outlast their competitors because at that point their pro ts would increase this creates a signi cant delay in the exit process in addition by decompos ing the across market variation in the exit process i nd that tv diusion explains a substantial proportion of the variation in the exit process

estimation of a model of entry in the airline industry this paper considers the effect of an airline s scale of operation at an airport on the profitability of routes flown out of that airport the empirical methodology uses the entry decisions of airlines as indicators of underlying profitability the results extend the empirical literature on airport presence by providing a new set of estimates of the determinants of city pair profitability these estimates imply that city pair profits increase in airport presence and decrease rapidly in the number of entering firms the literature on empirical models of oligopoly entry is also extended via a focus on the role of differences between firms

an empirical model of firm entry with endogenous product type choices i describe a model of entry with endogenous product type choices these choices are formalized as the outcomes of a game of incomplete information in which rivals differentiated products have nonuniform competitive effects on profits i estimate the model for location choices in the video retail industry using a nested fixed point algorithm solution the results imply significant returns to product differentiation simulations illustrate the tradeoff between demand and intensified competition and the extent to which markets with more scope for differentiation support greater entry

the making of an oligopoly firm survival and technological change in the evolution of the u s tire industry the number of producers in the u s tire industry grew for 25 years and then declined sharply and the industry evolved to be an oligopoly the role of technological change in shaping the industry s market structure is explored a model of industry evolution featuring technological change is used to derive predictions that are tested using a novel data set on firm entry exit size location distribution networks and technological choices prior to the shakeout of producers consistent with the model earlier entering and larger firms survived longer principally because of the influence of age and size on technological change

pensions and household wealth accumulation abstract economists have long suggested that higher private pension benefits crowd out other sources of household wealth accumulation we exploit detailed information on pensions and lifetime earnings for older workers in the 1992 wave of the health and retirement study and employ an instrumental variable iv identification strategy to estimate crowd out the iv estimates suggest statistically significant crowd out each dollar of pension wealth is associated with a 53 67 cent decline in nonpension wealth with less precision we use an instrumental variable quantile regression estimator and find that most of the effect is concentrated in the upper quantiles of the wealth distribution

dynamic product positioning in differentiated product markets the effect of fees for musical performance rights on the commercial radio industry this article predicts how radio station formats would change if as was recently proposed music stations were made to pay fees for musical performance rights it does so by estimating and solving using parametric approximations to firms value functions a dynamic model that captures important features of the industry such as vertical and horizontal product differentiation demographic variation in programming tastes and multi station ownership the estimated model predicts that high fees would cause the number of music stations to fall significantly and quite quickly for example a fee equal to 10 of revenues would cause a 4 6 drop in the number of music stations within 2 1 2 years and a 9 4 drop in the long run the size of the change is limited however by the fact that many listeners particularly in demographics that are valued by advertisers have strong preferences for music programming publication abstract

labor supply elasticity and social security reform abstract previous literature on social security reform has used a variety of period utility functions and calibrated values for the intertemporal elasticity of substitution ies in labor in this paper we show that the effects of social security reforms on aggregate labor supply are invariant to plausible values of the ies but the effect of such reforms on the profile of hours over the life cycle is highly sensitive to the ies we first establish these results analytically in a simple partial equilibrium setting and then demonstrate their robustness in a general equilibrium model calibrated to match key u s macroeconomic indicators we find that the aggregate effects are similar regardless of the wide range of the values of ies used in calibrated economies however social security reform leads to a large reallocation of hours worked over the life cycle from early years to later working years and the size of this reallocation significantly increases with the ies

war and conflict in economics theories applications and recent trends we review the main economic models of war and conflict these models vary in details but their implications are qualitatively consistent highlighting key commonalities across a variety of conflict settings recent empirical literature employing both laboratory and field data in many cases confirms the basic implications of conflict theory however this literature also presents important challenges to the way economists traditionally model conflict we finish our review by suggesting ways to address these challenges

estimation of cost efficiencies from mergers application to us radio this article estimates fixed cost efficiencies from mergers using a dynamic oligopoly model in which mergers and repositioning of products are endogenous the inference is based on revealed preference approach selecting cost synergies that rationalize observed merger decisions the estimates can be used to assess the total welfare impact of retrospective and counterfactual mergers the framework is applied to estimate cost efficiencies after the 1996 deregulation of u s radio industry within the period of 1996 to 2006 the cost savings resulting from mergers amount to 1 2 billion per year equally split across economies of scale and within format cost synergies

understanding domestic savings an empirical approach abstractthere are two unusual and important features in the evolution of the savings rate in chile first the economy increased the average savings rate by 11 percentage points in the period 1985

matching and price competition we develop a model in which firms set impersonal salary levels before matching with workers wages fall relative to any competitive equilibrium while profits rise almost as much implying little inefficiency furthermore the best firms gain the most from the system while wages become compressed in light of our results we discuss the performance of alternative institutions and the recent antitrust case against the national resident matching program

what accounts for the variation in retirement wealth among u s households even among households with similar socioeconomic characteristics saving and wealth vary considerably life cycle models attribute this variation to differences in time preference rates risk tolerance exposure to uncertainty relative tastes for work and leisure at advanced ages and income replacement rates these factors have testable implications concerning the relation between accumulated wealth and the shape of the consumption profile using the panel study of income dynamics and the consumer expenditure survey we find little support for these implications the data are instead consistent with rule of thumb mental accounting or hyperbolic discounting theories of wealth accumulation jel di d91 e21

clustering in n player preemption games we study a complete information preemption game in continuous time a finite number of firms decide when to make an irreversible observable investment upon investment a firm receives flow profits which decrease in the number of firms that have invested the cost of investment declines over time exogenously we characterize the subgame perfect equilibrium outcome which is unique up to a permutation of players when the preemption race among late investors is sufficiently intense the preemption incentive for earlier investors disappears and two or more investments occur at the same time we identify a sufficient condition in terms of model parameters clustering of investments occurs if the flow profits from consecutive investments are sufficiently close this shows how clustering can occur in the absence of coordination failures informational spillovers or positive payoff externalities

the effects of pensions on household wealth a reevaluation of theory and evidence this paper examines the extent to which households offset pension wealth with reductions in other wealth systematic econometric biases imply that the estimated offsets in previous empirical studies are smaller than the true offset and may even have the wrong sign new empirical estimates that do not correct for the biases generate little offset between pensions and other wealth estimates that correct for the biases show substantially more offset a smaller impact of pensions on overall saving than in most previous studies the estimates also indicate that the effects of pensions on wealth vary significantly across households

the generalized war of attrition abstract we model a war of attrition with n k firms competing for n prizes in a natural oligopoly context the k 1 lowest value firms drop out instantaneously even though each firm s value is private information to itself in a standard setting context in which every competitor suffers losses until a standard is chosen even after giving up on its own preferred alternative each firm s exit time is independent both of k and of other players actions our results explain how long it takes to form a winning coalition in politics solving the model is facilitated by the revenue equivalence theorem jel d43 d44 l13 o30

market structure and multiple equilibria in airline markets we provide a practical method to estimate the payoff functions of players in complete information static discrete games with respect to the empirical literature on entry games originated by bresnahan and reiss 1990 and berry 1992 the main novelty of our framework is to allow for general forms of heterogeneity across players without making equilibrium selection assumptions we allow the effects that the entry of each individual airline has on the profits of its competitors its competitive effects to differ across airlines the identified features of the model are sets of parameters partial identification such that the choice probabilities predicted by the econometric model are consistent with the empirical choice probabilities estimated from the data we apply this methodology to investigate the empirical importance of firm heterogeneity as a determinant of market structure in the u s airline industry we find evidence of heterogeneity across airlines in their profit functions the competitive effects of large airlines american delta united are different from those of low cost carriers and southwest also the competitive effect of an airline is increasing in its airport presence which is an important measure of observable heterogeneity in the airline industry then we develop a policy experiment to estimate the effect of repealing the wright amendment on competition in markets out of the dallas airports we find that repealing thewright amendment would increase the number of markets served out of dallas love

the consumption and wealth effects of an unanticipated change in lifetime resources in 2000 italy replaced its traditional system of severance pay for public employees with a new system under the old regime severance pay was proportional to the final salary before retirement under the new regime it is proportional to lifetime earnings this reform entails substantial losses for future generations of public employees in the range of 20 000 30 000 depending on seniority using a difference in difference framework we estimate the impact of this unanticipated change in lifetime resources on the current consumption and wealth accumulation of employees affected by the reform in line with theoretical simulations we find that each euro reduction in severance pay reduces the average propensity to consume by 3 cents and increases the wealth income ratio by 0 32 the response is stronger for younger workers and for households where both spouses are public sector employees this paper was accepted by amit seru finance

iras and household saving this paper examines the effects of individual retirement accounts iras on private and national saving the authors construct a formal model of dynamic utility maximization that generates closed form equations for ira and other saving their empirical estimates indicate that raising the annual ira contribution limit between 1983 and 1986 would have resulted in little if any increase in national saving results from sensitivity analysis imply substantially smaller effects on national saving than most previous researchers have estimated the authors results are consistent with new evidence they present indicating considerable potential among ira holders to shift taxable forms of saving into iras copyright 1994 by american economic association

the life cycle of a competitive industry firm numbers first rise then later fall as an industry evolves this nonmonotonicity is explained using a competitive model in which innovation opportunities fuel entry and relative failure to innovate prompts exit equilibrium time paths for price and quantity also share features of the data the model is estimated using data from the u s automobile tire industry a particularly dramatic example of the nonmonotonicity in firm numbers

social security and households saving this paper provides new evidence on the substitutability between private and pension wealth by exploiting the italian pension reform of 1992 we use a difference in difference estimator that exploits the differential effects of the reform on individuals belonging to several yea of birth cohorts and different occupational groups we find convincing evidence that saving rates increase as a result of a reduction in pension wealth by allowing for the possibility that substitutability changes with age we find that substitutability is particularly high and precisely estimated for workers between 35 and 45

the devolution of declining industries in declining industries capacity must be reduced in order to restore profitability who bears this burden where production is all or nothing there is a unique subgame perfect equilibrium the largest firms exit first ghemawat and nalebuff 1985 in this paper firms continuously adjust capacity again there is a unique subgame perfect equilibrium all else equal large firms reduce capacity first and continue to do so until they shrink to the size of their formerly smaller rivals intuitively bigger firms have lower marginal revenue and correspondingly greater incentives to reduce capacity this prediction is supported by empirical findings

declining public pensions in an era of demographic ageing will private provision fill the gap abstract demographic crisis and imprudent commitments have induced a crisis in public pension programmes in oecd countries will present and prospective cutbacks lead to greater private saving either in the form of private pension provision or in other forms of saving the paper surveys existing evidence and provides new results on three questions do individuals substitute private for public provision of savings when public pension programmes are cut back voluntarily do individuals respond to incentives to join sponsored or tax subsidised arrangements if encouraged by the government and if individuals are prepared to make such arrangements and where saving is voluntary do they save enough to replace previous prospective public pension flows

retirement expectations pension reforms and their impact on private wealth accumulation abstract we estimate the effect of pension reforms on households expectations of retirement outcomes and private wealth accumulation decisions exploiting a decade of intense italian pension reforms as a source of exogenous variation in expected pension wealth the survey of household income and wealth a large random sample of the italian population elicits expectations of the age at which workers expect to retire and of the ratio of pension benefits to pre retirement income between 1989 and 2002 we find that workers have revised expectations in the direction suggested by the reform and that there is substantial offset between private wealth and perceived pension wealth particularly by workers that are better informed about their pension wealth

pension wealth and individual saving some new evidence attemprs to measure the tmpact of soctal security and private pensions on household saving have occupied much of the literature in empirical public finance over the past decade empirical estimates of those impacts have been quite varied see the discussion in aaron 1982 this paper provides new estimates of the impact of changes in holdings of social security and private pension annuities on the level of non pension wealth the data examined are drawn from surveys conducted for the u s president s commission on pension policy the impact of the social security system on individual saving has been a concern since feldstein s 1974 pioneering paper l the theoretical argument of feldstein and of barro 1974 1978 centers around the funding status of social security i e the degree to which an unfunded social security system reduces private saving empirical tests of the effects of social security on saving in this line of research have been conducted in the perfect certainty version of the life cycle model modigliani and ando 1957 modigliani and brumberg 1954 in that approach social security affects non pension saving through its impact on individual intertemporal budget constraints disposable income during the working period falls by the amount of

pension reform and saving in britain the paper examines the pension programme in britain focusing on reforms that have increased the fraction of the work force opting out of public provision and that have permitted individuals to choose their private pension provider it also examines the issue of pension provision and household saving the paper highlights the disparities in retirement saving behaviour across types of pension provision and different households the paper discusses the policy issues of the adequacy of household saving and the impact of pension reform on household saving and the public finances

an analysis of the war of attrition and the all pay auction we study the war of attrition and the all pay auction when players signals are affiliated and symmetrically distributed we a find sufficient conditions for the existence of symmetric monotonic equilibrium bidding strategies and b examine the performance of these auction forms in terms of the expected revenue accruing to the seller under our conditions the war of attrition raises greater expected revenue than all other known sealed bid auction forms journal of economic literature classification numbers d44 d82 1997 academic press

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

pension wealth and household savings in europe evidence from sharelife we use recently collected retrospective survey data to estimate the displacement effect of pension wealth on household savings the third wave of the survey of health ageing and retirement in europe sharelife collects information on the entire job history of the respondent a feature missing in most previous studies we show that addressing measurement error problems is crucial to estimate the displacement effect when using survey data we find that each euro of pension wealth is associated with a 47 61 cent decline in non pension wealth using robust median regression in the presence of biases from measurement errors and omitted unobserved variables we estimate a lower bound to the true offset between 17 and 30 significantly different from zero instrumental variables regression estimates although less precise suggest full displacement