unanticipated aggregate disturbances and tests of the life cycle consumption model several recent studies have used data on food consumption from the panel study of income dynamics psid to test t he rational expectations life cycle hypothesis against the alternative of prevalent liquidity constraints these tests invoke the rational expectations restriction that income forecast errors are independent of lagged information this restriction however applies only in a time series context it is possible that unanticipated macroeconomic disturbances cause forecast errors to be correlated with lagged information in a cross section of families the authors present evidence of such a correlation in the psid data show that this correlation biases previous tests of the life cycle model toward rejection and derive a proper test of the life cycle model using pa nel data copyright 1993 by mit press

bargaining set with endogenous leaders a convergence result abstract we provide a notion of bargaining set for finite economies where the proponents of objections leaders are endogenous we show its convergence to the set of walrasian allocations when the economy is replicated

a life cycle consumption model with liquidity constraints theory and empirical results a structural consumption model incorporating endogenous liquidity constraints is fit to a cross section of 798 u s families liquidity constrained families are estimated to constitute 19 4 percent of the population sampled a group that accounts for 16 7 percent of consumption in the population sampled in sample simulations of the model suggest that a temporary tax has three to four times more impact on aggregate consumption than it would if liquidity constraints were not in effect copyright 1987 by the econometric society

the intergenerational causal effect of tax evasion evidence from the commuter tax allowance in austria does tax evasion run in the family to answer this question we study the case of the commuter tax allowance in austria this allowance is designed as a step function of the distance between the residence and the workplace creating sharp discontinuities at each bracket threshold the distance to these brackets is a strong determinant of compliance since it corresponds to the probability of detection the match of different administrative data sources allows us to observe actual compliance behavior at the individual level across two generations to identify the intergenerational causal effect in tax evasion behavior we use the paternal distance to bracket as an instrumental variable for paternal compliance we find that paternal noncompliance increases children s non compliance by about 20 percent

testing the response of consumption to income changes with noisy panel data this paper tests the rational expectations lifecycle model of consumption against i a keynesian model and ii the rational expectations lifecycle model with imperfect capital markets the tests are based upon the relative responsiveness of consumption to income changes that can be predicted from past information and income changes that cannot he predicted the tests allow for measurement error in income the results reject the keynesian model and generally support the lifecycle model but the results are not sufficiently precise to rule out the possibility that some households are liquidity constrained measurement error has a strong influence on the relationship between consumption and income

average monotonic cooperative games abstract a subclass of monotonic transferable utility t u games is studied average monotonic games these games are totally balanced we prove that the core coincides with both the bargaining set a la davis and maschler and the bargaining set a la mas colell to obtain this result a technique based on reduced games is used journal of economic literature classification number c71

on cost sharing in the provision of a binary and excludable public good we study efficiency and fairness properties of the equal cost sharing with maximal participation ecsmp mechanism in the provision of a binary and excludable public good according to the maximal welfare loss criterion the ecsmp is optimal within the class of strategyproof individually rational and no deficit mechanisms only when there are two agents in general the ecsmp mechanism is not optimal we provide a class of mechanisms obtained by symmetric perturbations of ecsmp with strictly lower maximal welfare loss we show that if one of two possible fairness conditions is additionally imposed the ecsmp mechanism becomes optimal

the demand bargaining set general characterization and application to majority games abstract the cooperative solution concept introduced here the demand bargaining set contains the core and is included in the zhou bargaining set eliminating the dominated coalition structures the demand vectors belonging to the demand bargaining set are self stable in the class of constant sum homogeneous weighted majority games the demand bargaining set is nonempty and predicts a unique demand vector namely a proportional distribution within minimal winning coalitions the noncooperative implementation of the demand bargaining set is obtained for all the games that satisfy the one stage property

marginal federal personal and corporate income tax rates in the u s 1909 1975 abstract in this article i first report and describe the construction of two new statistical series on the marginal federal income tax rates for corporations and private individuals in the united states since the inception of those taxes and then analyze the behavior of these series over time several results on the determination of tax rates are derived these generally are not consistent with barro s theory of deficit finance

an application of the shapley value to fair division with money the author considers fair division when monetary compensations are feasible and utilities are quasi linear four axioms are discussed individual rationality resource monotonicity population solidarity and the stand alone test the latter views the utility from consuming all the goods as an upper bound on every coalition s actual joint utility under efficiency the four axioms show little compatibility however when the goods have enough substitutability in everyone s preferences the shapley value of the surplus sharing game satisfies all four axioms an example is the optimal assignment of indivisible goods when every agent consumes only one good copyright 1992 by the econometric society

a new bargaining set of an n person game and endogenous coalition formation abstract the two most fundamental questions in cooperative game theory are when a game is played what coalitions will be formed and what payoff vectors will be chosen few solution concepts or theories in the current literature provide satisfactory answers to both questions answers are especially lacking for the first one in this paper we introduce a new bargaining set which is the first solution concept in cooperative game theory that provides answers to both fundamental questions endogenously journal of economic literature classification number c71

individual morality and reputation costs as deterrents to tax evasion abstract empirical evidence suggests some taxpayers never evade evasion increases with the tax rate and evasion decisions are interdependent these findings are not easily explained by the existing theory which models evasion as an independently made amoral gamble this paper uses nonpecuniary costs of evasion to reconcile theory with evidence once individuals are assumed to differ by an honesty characteristic taxpayers dichotomise into groups the more honest of which responds to a tax change as the evidence suggests a further extension is to introduce an endogenous reputation cost this suggests a positive relationship between the number of evaders and the tax rate

the permanent income hypothesis consumption euler relations are estimated with data from the 1986 1991 us consumer expenditure survey without creating a synthetic panel the stochastic implications of the permanent income hypothesis generally are not rejected and there is little evidence of liquidity constrained or rule of thumb behavior the results are robust with respect to consumption category changes in sample and choice of instruments 1999 elsevier science b v all rights reserved

the tax evasion social multiplier evidence from italy we estimate social externalities of tax evasion in a model where congestion of the auditing resources of local tax authorities generates a social multiplier identification is based on a contrast of the variance of tax evasion at different levels of aggregation we use a unique data set that contains audits of about 80 000 small businesses and professionals in italy and also provides an exact measure of reference groups in our model we find a social multiplier of about 3 which means that the equilibrium response to a shock that induces an exogenous variation in mean concealed income is about 3 times the initial average response this is a short run effect that persists to the extent that auditing resources are not adjusted to internalize the congestion externality

getting the word out enforcement information dissemination and compliance behavior the question for the tax authority is how individuals become aware of enforcement effort to be an effective tool in reducing tax evasion taxpayers must be aware of the current audit and penalty regime we use laboratory experiments to examine the compliance impact of types of information dissemination regarding audit frequency and results the information includes official information disseminated by the tax authority and unofficial or informal communications among taxpayers our results indicate that the effect of the type of post audit information is conditional on whether the taxpayer is well informed of the audit rate prior to filing we find that the tax authority would be served by pre announcing audit rates credibly and by emphasizing the previous period audit frequency in annual reporting of enforcement effort

taxpayer response to an increased probability of audit evidence from a controlled experiment in minnesota abstract in 1995 a group of 1724 randomly selected minnesota taxpayers was informed by letter that the returns they were about to file would be closely examined compared to a control group that did not receive this letter low and middle income taxpayers in the treatment group on average increased tax payments compared to the previous year which we interpret as indicating the presence of noncompliance the effect was much stronger for those with more opportunity to evade in fact the difference in differences is not statistically significant for those who do not have self employment or farm income and do not pay estimated tax surprisingly however the reported tax liability of the high income treatment group fell sharply relative to the control group

who is credit constrained in the u s economy an important assumption of the life cycle model of consumption is the postulate of perfect capital markets this hypothesis has recently been challenged by substantial empirical evidence hall and mishkin 1982 using the panel study of income dynamics estimate that 20 percent of united states families are liquidity constrained mariger 1986 derives a life cycle model with endogenous liquidity constraints and using a cross section estimates this fraction to be 19 4 percent hubbard and judd 1986 simulate a model with a constraint on net worth which shows that with reasonable assumptions about preferences 19 0 percent of united states consumers are liquidity constrained the emerging consensus points therefore to a fraction of approximately 20 percent of the population behaving in a manner that is inconsistent with the pure life cycle model in addition hayashi 1985 and zeldes 1989 investigate the correlation among consumption wealth and income for various population groups and infer that liquidity constraints are more important for younger families with low levels of wealth and saving the main limitation of these studies is that in their data sets constrained consumers are not observable and have to be identified via indirect evidence thus there is as yet little firm evidence about the characteristics of the consumers who are likely to be credit constrained this paper adopts an approach that differs from previous tests for liquidity constraints because it makes use of data where constrained consumers are observable and explicitly links their existence to credit market imperfections and personal characteristics the data drawn from the 1983 survey of consumer finances scf and described in section ii provide information on individuals whose request for credit has been rejected by financial intermediaries in section iii a model is developed in which consumers and lenders behavior jointly determines the probability that a consumer is rationed in the credit market this probability is then

implementation of bargaining sets via simple mechanisms abstract we propose two simple mechanisms that implement two bargaining sets in super additive environments the first bargaining set is a close variation of the one proposed by l zhou 1994 games econom behav 6 512 526 and the second is the pareto optimum payoffs of the a mas colell 1989 j math econom 18 129 139 bargaining set we adopt a simple framework in which the cooperative outcomes are realized as non cooperative subgame perfect equilibria in pure strategies of a two stage game played by an auxiliary set of individuals competing over the cooperative agents journal of economic literature classification numbers c71 c72

empirical modelling of the aggregation error in the representative consumer model this paper examines different approaches to modelling the aggregation error associated with the representative consumer model each approach is based on an analytical framework intended for modelling aggregate time series data on quantities and prices with potential additional measures of income distribution simple functions that track aggregation error over time are found to perform better than more complex and theoretically sophisticated models an explanation is given based on typical time series characteristics of economic data

union contracts and the life cycle permanent income hypothesis this paper isolates households in the psid whose heads can be matched to particular long term union contracts with high confidence the author uses use published information on these contracts to construct a household specific measure of expected wage growth he finds that predictable wage movements are significantly correlated with consumption changes contrary to neoclassical consumption theory the author finds that consumption responds more strongly to predictable income declines than to predictable income increases this asymmetry is inconsistent with liquidity constraints and myopia but is qualitatively consistent with models in which preferences exhibit loss aversion copyright 1995 by american economic association

is consumption growth consistent with intertemporal optimization evidence from the consumer expenditure survey in this paper we show that some of the predictions of models of consumer intertemporal optimization are in line with the patterns of nondurable expenditure observed in u s household level data we propose a flexible specification of preferences that allows multiple commodities and yields empirically tractable equations we estimate preference parameters using the only u s micro data set with complete consumption information we show that previous rejections can be explained by the simplifying assumptions made in previous studies we also show that results obtained using good consumption or aggregate data can be misleading

the demand bargaining set the cooperative solution concept introduced here the demand bargaining set contains the core and is included in the zhou bargaining set eliminating the dominated coalition structures the demand vectors belonging to the demand bargaining set are self stable in the class of constant sum homogeneous weighted majority games the demand bargaining set is non empty and predicts a unique demand vector namely a proportional distribution within minimal winning coalitions the noncooperative implementation of the demand bargaining set is obtained for all the games that satisfy the one stage property

monetary rewards and decision cost in experimental economics a survey of thirty one experimental studies which report data on the comparative effects of monetary rewards and opportunity cost shows 1 several studies in which increased rewards shift the central tendency of the data toward the predictions of rational models 2 in virtually all cases rewards reduce the variance of the data around the predicted outcome this is consistent with a model in which rewards are balanced against decision cost in agent behavior and explicates the argument that when rational models fail it can be attributed to low opportunity cost of deviations from the rational prediction

population monotonic allocation schemes for cooperative games with transferable utility abstract an allocation scheme for a cooperative game specifies how to allocate the worth of every coalition it is population monotonic if each player s payoff increases as the coalition to which he belongs grows larger we show that essentially a game has a population monotonic allocation scheme pmas if and only if it is a positive linear combination of monotonic simple games with veto control a dual characterization is also provided sufficient conditions for the existence of a pmas include convexity and increasing average marginal contributions if the game is convex its extended shapley value is a pmas classification number 026

on the path dependence of tax compliance abstract this paper presents experimental evidence that tax compliance is path dependent for given values of the audit probability and the fine for tax evasion we compare the income declaration of subjects who faced a change in one of the two parameters to that of subjects who experienced no such parameter change we show that past tax enforcement regimes continue to have an impact on current income declarations this finding may be explained by reference dependent preferences and it has important policy implications for instance legal transplants cannot be expected to reliably yield similar behavior in countries with different legal histories

bargaining and bargaining sets abstract we argue that in exchange economies various versions of the bargaining set cannot be implemented in nash equilibrium we then propose an extensive form mechanism that exactly implements the aumann davis maschler bargaining set in subgame perfect equilibrium the mechanism corresponds closely to the description of the bargaining set and respects feasibility in and out of equilibrium journal of economic literature classification numbers c71 c72 c78 d51

is economics useful for public policy economists have always played an important role in major public policy debates even so i believe that the role of economists in these public policy discussions has often been misguided because it has typically relied upon best practices stated in the form of general guidelines or even universal principles however best practices are not best if the specific situation does not conform with the assumptions that underlie the advice so my first conclusion is a cautionary and negative one specific circumstances differ so profoundly across individuals firms markets countries and time that most any attempt to define best practices that apply in all circumstances will lead to profoundly misleading public policy recommendations however even if economics cannot identify the truth it can often identify a truth so my second conclusion is a more positive one economists should continue to develop multiple theories that inform public policies but we should also focus our efforts on identifying and testing the critical assumptions that drive the results of these theories recognizing that the validity of any assumptions will depend intimately on specific circumstances i illustrate these two main conclusions with specific examples from my own work i conclude with some best practices recommendations of my own recognizing the obvious irony of such an effort

the impact of public transfer expenditures on tax evasion an experimental approach abstract this paper outlines the methodology and results of an experiment undertaken to analyze primarily the impact of public sector transfer payments on tax evasion behaviour apart from the use of transfer payments further explanatory variables used were income expected auditing probability and perceived tax burden the influence of these variables on both the propensity to evade taxes and the extent of taxes evaded are investigated in an attempt to add more realism some innovative changes to the experimental approach were incorporated

a microeconometric comparison of household behavior between countries this article reviews the methodological issues associated with estimating and testing competitive markets with panel data and applies it to an important new arena international economics we investigate differences in housing consumption and male labor supply across households in germany and the united states with data from the german socio economic panel and the panel study of income dynamics observations are treated as equilibrium outcomes generated by a set of competitive markets that accommodate varying degrees of integration after controlling for differences in the sample populations and aggregate shocks we find that the estimated structural parameters are surprisingly similar across these two countries

an optimal control solution to the liquidity constraint problem abstract an analytical solution to the liquidity constraint problem is derived in an optimal control framework some properties of the solution are examined results in the existing literature derived there by disparate methods are obtained by a single approach thus providing a unified theory of consumption under liquidity constraint

production inventory games a new class of totally balanced combinatorial optimization games in this paper we introduce a new class of cooperative games that arise from production inventory problems several agents have to cover their demand over a finite time horizon and shortages are allowed each agent has its own unit production inventory holding and backlogging cost cooperation among agents is given by sharing production processes and warehouse facilities agents in a coalition produce with the cheapest production cost and store with the cheapest inventory cost we prove that the resulting cooperative game is totally balanced and the owen set reduces to a singleton the owen point based on this type of allocation we find a population monotonic allocation scheme for this class of games finally we point out the relationship of the owen point with other well known allocation rules such as the nucleolus and the shapley value

the sensitivity of consumption to transitory income estimates from panel data on households we investigate the stochastic relation between income and consumption specifically consumption of food within a panel of about 2 000 households our major findings are 1 consumption responds much more strongly to permanent than to transitory movements of income 2 the response to transitory income is nonetheless clearly positive 3 a simple test independent of our model of consumption rejects a central implication of the pure life cycle permanent income hypothesis the observed covariation of income and consumption is compatible with pure life cycle permanent income behavior on the part of80 percent of families and simple proportionality of consumption and income among the remaining 20 percent as a general matter our findings support the view that families respond differently to different sources of income variations in particular temporary income tax policies have smaller effects on consumption than do other more permanent changes in income of the same magnitude this abstract was borrowed from another version of this item

experimental evidence on the relationship between tax evasion opportunities and labor supply abstract motivated by the observation that access to evasion opportunities is distributed heterogeneously across the labor market this paper examines the extent to which labor supply elasticities with respect to tax rates depend on such evasion opportunities we first discuss the channels through which access to evasion affects labor supply responses and then set up a laboratory experiment n 205 in which all participants undertake a real effort task over several rounds subjects face a tax rate that varies across rounds and are required to pay taxes on earned income the treatment group is given the opportunity to underreport income while the control group is not we find evidence that participants in the treatment group respond differently to changes in the net of tax rate than participants in the control group the effect is more prevalent when tax rates fall additionally the direction of the treatment effect is dependent on the evolution of tax rates across rounds

further evidence of excess sensitivity of consumption nonseparability among goods and heterogeneity across households the standard theoretical framework for analysing households intertemporal decisions is the life cycle permanent income model among its implications testing the model allows to analyse the response of consumption to fiscal policy however the empirical literature with microdata has yielded mixed results this article examines the sensitivity of the results to the assumption of separability among goods and of homogeneity across households for that purpose we test a rational expectations permanent income model with household data drawn from the spanish family expenditure survey this survey contains detailed information on total expenditure and the income presents large exogenous quarterly changes due to an institutional feature the article shows that assuming separability among commodities biases the test against the model when separability is not imposed we show that the rejection of the model depends on heterogeneity across households in terms of their members being unemployed or not for those

measuring income tax evasion using bank credit evidence from greece we document that in semiformal economies banks lend to tax evading individuals based on the bank s assessment of the individual s true income this observation leads to a novel approach to estimate tax evasion we use microdata on household credit from a greek bank and replicate the bank underwriting model to infer the banks estimate of individuals true income we estimate that 43 45 of self employed income goes unreported and thus untaxed for 2009 this implies 28 2 billion of unreported income implying forgone tax revenues of over 11 billion or 30 of the deficit our method innovation allows for estimating the industry distribution of tax evasion in settings where uncovering the incidence of hidden cash transactions is difficult using other methods primary tax evading industries are professional services medicine law engineering education and media we conclude with evidence that contemplates the importance of institutions paper trail and political willpower for the persistence of tax evasion jel codes g21 h22 h24 h26 p37

rental harmony with roommates abstract we prove existence of envy free allocations in markets with heterogenous indivisible goods and money when a given quantity is supplied from each of the goods and agents have unit demands we depart from most of the previous literature by allowing agents preferences over the goods to depend on the entire vector of prices we then show how our theorem may be applied in two related problems existence of envy free allocations in a version of the cake cutting problem and existence of equilibrium in an exchange economy with indivisible goods and money our proof uses shapley s k k m s theorem and hall s marriage lemma

monitoring and enforcement of environmental regulations lessons from a natural field experiment in norway abstract relying on a small natural field experiment conducted by the norwegian environmental protection agency i estimate effects of three fundamental elements of most monitoring and enforcement practices self reporting audit frequency and specific deterrence i find evidence of under reporting of violations in firms self audits as more violations are detected in on site audits than in self audits announcing the increased audit frequency has no effect on firms compliance but an audit raises subsequent compliance substantially

household choices in equilibrium this paper is an empirical investigation of equilibrium restrictions on household consumption and male labor supply it exploits a simple factor structure rationalized by two assumptions that household allocations are pareto optimal and that the labor market is competitive the paper estimates household preferences and tests how well this parsimonious factor structure represents panel data on married couples and time series data on asset returns most of the estimates are roughly comparable to those found in previous work no evidence against the simple factor representation is found and the intertemporal capital asset pricing model is not rejected copyright 1990 by the econometric society

should we test the life cycle permanent income hypothesis with food consumption data abstract most household consumption studies use food consumption data i show that in aggregate data one cannot reject the life cycle hypothesis using food but can reject it using other goods existing micro tests of the life cycle hypothesis thus may have low power

a simple test of friedman s permanent income hypothesis friedman s permanent income hypothesis pih predicts that the income elasticity of consumption should be higher for households for which a large fraction of the variation of their income is permanent than for households facing more transitory variations in income we test this prediction using modern household data from the us consumer expenditure survey the results offer some support for the pih

consistent solutions for cooperative games with externalities in order to calculate the worth of a coalition of players the coalition needs to predict the actions of outsiders we propose that for a given solution concept such predictions should be made by applying the solution concept to the reduced society consisting of the non members we illustrate by computing the r core for the case of bertrand competition with differentiated commodities

on the external validity of laboratory tax compliance experiments i introduction laboratory methods are now widely accepted as a methodological approach in economics and increasingly they have been used to examine specific public policy issues there is much to be gained from careful laboratory experiments they offer a low cost means of testing and replicating policy innovations and they generate precise data on individual behavior thereby allowing estimation of behavioral responses importantly they allow many policy innovations to be introduced singly and exogenously in a controlled environment and as a result laboratory experiments are typically seen as having a high degree of internal validity brewer 2000 campbell and stanley 1966 shadish cook and campbell 2002 because the causal relation between variables can be properly demonstrated however as emphasized by plott 1987 using laboratory experiments can allow more general inferences regarding human behavior only when the setting implemented in the laboratory parallels what is observed in the naturally occurring world even beyond this requirement of parallelism is the need for generalizing behavioral observations from the laboratory to the field or external validity internal validity can be demonstrated through the evaluation of the design however external validity can only be verified empirically and only with respect to the specific setting being investigated this paper investigates the external validity of laboratory experiments and does so in the context of experiments on tax compliance behavior tax evasion is central to many important policy questions current estimates report the tax gap or difference between taxes owed and taxes paid in the united states to be 450 billion annually internal revenue service 2012 beyond these massive revenue losses evasion creates major misallocations in resource use when individuals alter their behavior to cheat on their taxes its presence requires that government expend resources to detect noncompliance to measure its magnitude and to penalize tax evasion evasion alters the distribution of income in arbitrary unpredictable and unfair ways and it may contribute to feelings of unjust treatment and disrespect for the law more broadly it is not possible to understand the true impact of taxation without recognizing the existence and the effects of tax evasion laboratory methods have been used to examine a wide range of policies that may affect the compliance decision policies that have not always proven amenable to either theoretical analyses or empirical analyses with field data however laboratory studies of compliance are sometimes viewed with skepticism the most common criticism is that the student subjects typically used in experiments may not be representative of taxpayers undergraduates may have little experience with filing tax returns and their economic and demographic backgrounds may differ from those of taxpayers another criticism is that the context of laboratory compliance experiments does not closely enough resemble the context in which actual compliance decisions are made as a result there is a concern that experimental results on policy innovations that rely upon student subjects in laboratory compliance experiments cannot be generalized to the population it is this issue that we examine here building on previous research we present several types of evidence on the external validity of experiments on individual compliance decisions a first question examines whether behavior of laboratory participants is replicated by behavior of individuals making a similar decision in the naturally occurring world that is do participants in laboratory experiments exhibit different patterns of behavior than individuals in a similar naturally occurring setting to answer this question we utilize a special data set from the u s internal revenue service irs assembled as part of its national research program nrp

egalitarian equivalent cost sharing of a public good in an economy with one public and one private good egalitarian equivalent cost sharing consists of finding the highest public good level x such that consuming x for free yields a feasible utility distribution the corresponding feasible allocation typically unique called egalitarian equivalent is in the core of the economy conversely any cost sharing method satisfying pareto optimality cost monotonicity nobody suffers a utility loss if the production technology improves upon ceteris paribus and individual rationality no single agent coalition objects or no private transfers no agent receives a positive amount of private good must select an egalitarian equivalent allocation in every economy copyright 1987 by the econometric society

tax evasion and orders of risk aversion abstract the classic allingham and sandmo s journal of public economics 1 1972 323 338 portfolio choice approach to income tax evasion has been increasingly criticised because it requires an excess degree of risk aversion to explain the observed rate of tax compliance in this paper we argue that there may not necessarily be excess risk aversion and that the evidence can be explained by the distinction between orders of risk aversion as defined by segal and spivak journal of economic theory 51 1990 111 125 and considered in regard to the same problem of anomalous excess risk aversion in financial and insurance markets

laboratory experimentation in economics six points of view 1 introduction and overview alvin e roth 2 bargaining phenomena and bargaining theory alvin e roth 3 equity and coalition bargaining in experimental three person games reinhard selten 4 the psychology of choice and the assumptions of economics richard thaler 5 hypothetical valuations and preference reversals in the context of asset trading marc knez and vernon l smith 6 economics according to the rats and pigeons too what have we learned and what can we hope to learn john h kagel 7 dimensions of parallelism some policy applications of experimental methods charles r plott

the permanent income hypothesis and the real interest rate some evidence from panel data abstract a test of the permanent income hypothesis in panel data is formulated taking into account both the time series and cross section variation in the rate of return the over identifying restrictions of the theory rejected

the permanent income hypothesis and consumption durability analysis based on japanese panel data the permanent income hypothesis with durability of commodities is tested on a panel of about 2 000 japanese households for several commodity groups under static expectations about real interest rates and for some class of utility functions consumption which is a distributed lag function of current and past expenditure follows a martingale main empirical results are i the durability of commodities usually classified as services is substantial ii the hypothesis applies to about 85 percent of the population consisting of wage earners and iii income changes explain only a small fraction of the movements in expenditure

consumption and capital market imperfections an international comparison the excess sensitivity of consumption to current income fluctuations is higher in countries where consumers borrow less low levels of consumer debt can result either from capital market imperfections or from a low demand for loans the evidence suggests that the former view is more appropriate than the latter and thus supports the hypothesis that excess sensitivity may be attributed to liquidity constraints rather than to other factors copyright 1989 by american economic association

testing the cross section implications of friedman s permanent income hypothesis abstract we use modern household data and econometric methods to conduct some of the original tests of the permanent income hypothesis pih suggested and used by friedman 1957 a theory of the consumption function princeton university press princeton the data and methods are superior to those available to friedman allowing us to refine friedman s tests and perform tests he could not do the results provide overall though not universal support for pih

consumption over the life cycle and over the business cycle the main aim of this paper is to assess the validity of the life cycle model of consumption in particular we address an issue that has recently received much attention especially in the macroeconomic literature that of excess sensitivity of consumption growth to income growth we do this using a time series of cross sections and a novel and flexible parameterization of preferences the former allows us to address aggregation issues directly while with the latter we can allow both the discount factor and the elasticity of intertemporal substitution eis to be affected by various observable variables and lifetime wealth the main findings can be summarized as follows i the excess sensitivity of consumption growth to labor income disappears when we control for demographic variables this is true both at life cycle and business cycle frequencies ii estimation of a flexible specification of preferences indicates that the elasticity of intertemporal substitution is a function of several variables including the level of consumption the eis increases with the level of consumption as expected iii the variables that change the eis are also important in explaining why we observe excess sensitivity over the business cycle iv we are able to reconcile our results with those reported both in the macro and micro literature v in our specification the elasticity of intertemporal substitution is not very well determined this result however should be taken with care as we have not made an effort to construct a preferred specification which would probably include additional controls for labor supply behavior the evidence presented shows that the life cycle model cannot be easily dismissed indeed we believe that the model does a good job at representing consumption behavior both over the life cycle and over the business cycle