intratemporal substitution and government spending in this paper we examine the idea that a general model of consumption should allow for the direct effect of government expenditures in a two good permanent income model we show given an assumed preference specification that there is a cointegration restriction implied by an intraperiod first order condition of the model this restriction leads to a linear deterministic cointegration relation between government spending private consumption and their relative price that is supported by the data using this restriction to recover the preference parameters we estimate the intraperiod elasticity of substitution for both government and private consumption to be about 0 9 overall we find consistent empirical evidence in support of our model

search layoffs and reservation wages i analyze job search models with random layoffs in which employment opportunities are characterized by a wage and some measure of risk intuition suggests that a worker ought to demand a higher wage if he is to accept a job with a higher layoff rate but this is not true in several models analyzed in the literature i demonstrate here that assumptions about what happens immediately after a layoff and after a quit are critical in determining the relation between reservation wages and risk making these assumptions explicit clarifies the reasons why different models imply quite different predictions

coalition and party formation in a legislative voting game we examine a legislative voting game where decisions are being made over both ideological and distributive dimensions and legislators preferences are separable over the two dimensions in equilibrium legislators prefer to make proposals for the two dimensions together rather than offering sequential proposals on the two dimensions separately the equilibria exhibit interaction between the ideological and distributive dimensions and in any equilibrium there is a positive probability that a proposal is made and approved which excludes the median legislator as defined over the ideological dimension in contrast with a game where no distributive decision is being made moreover in any stationary equilibrium there is more than one ideological decision that has a positive probability of being proposed and approved we show that legislators can gain from forming political parties and consider examples where predictions can be made about the composition of parties we discuss the impact of political parties on the outcome

competitive search equilibrium in this paper i construct an equilibrium for markets with frictions which is competitive in the sense that all agents are price takers and maximize utility subject to a set of market parameters i show that the equilibrium allocation is socially optimal i also show how the competitive search equilibrium can be achieved if employers with vacancies can advertise publicly the wages they pay

search intensity job advertising and efficiency this paper demonstrates that if both firms and workers search the other side of the market for job matches the equilibrium rate of unemployment is likely to be too high both sides ignore a positive externality of their search when they establish a job match they remove from the market a job searcher so they save society his search costs i show that there is no feasible wage rate that can internalize this externality under fairly weak restrictions on the technology of search

fiscal policy and aggregate demand reply there appear to be two main conclusions of fred c graham s paper first he argues that the empirical evidence in aschauer 1985 supporting the permanent income hypothesis and a significant degree of substitutability between private consumption and government spending is specific to the sample period and to the limited nature of aschauer s unrestricted alternative model graham 1993 p 666 second after disaggregating government spending into various components he finds limited support for the hypothesis that federal nondefense spending as opposed to total federal state and local spending substitutes for private consumption the focus of my 1985 paper was on deriving a test of the ricardian equivalence theorem within an euler equation framework graham seems to have missed this point indeed there is no evidence in his paper to support the keynesian view that tax cuts stimulate private consumption and aggregate demand admittedly graham finds that changes in disposable income lead to changes in private consumption but this is not enough to support the standard keynesian analysis specifically it is necessary to determine whether tax changes per se induce changes in consumption spending consider a model similar to graham s equation 4 namely

the effect of ideological positions on job market interaction a spatial analysis abstract reporters and editors may not have the same ideology when an editor wants to employ a new reporter with a different ideology they have to negotiate the price of moving from their own ideology to the other s ideology we focus on the job market for reporters where the agents negotiate over the ideological position to be reported and wage we adopt a spatial model in which each agent suffers a utility loss as the agreed upon position moves away from his her favored one equilibrium determines a threshold ideological gap for a match to be formed our analysis generates a natural separation between extreme mildly extreme and moderate ideologies furthermore we find that agents that hold extreme ideologies compromise less than moderates this formulation may be applied to other situations in which agents involve monetary and non monetary considerations especially a preference for social proximity jel codes j32 j44

liquidity constraints and the substitutability between private and government consumption the role of military and non military spending i introduction using data for a number of economies we investigate i the relationship between private consumption and two types of government spending military and non military and ii the severity of liquidity constraints because of their importance for macroeconomic modeling in theory and practice 1 both issues have been the subjects of considerable theoretical and empirical investigation on the issue of liquidity constraints the most influential research has relied on hall s 1978 euler equation approach to the permanent income hypothesis in an attempt to reconcile hall s and flavin s 1981 methodologies hayashi 1982 modified hall s martingale result to allow for the possibility that a subset of consumers are liquidity constrained and showed that liquidity constraints can result in consumption s excess sensitivity to current income campbell and mankiw 1989 1990 1991 and jappelli and pagano 1989 have applied hayashi s methodology using data from the u s and several other oecd countries on the substitutability issue aschauer 1985 has modified hall s euler equation to allow for substitutability between government spending and private consumption and found that the two are substitutes for the u s karras 1994 however using a similar approach and data for 30 countries concludes that private and government consumption are better described as complementary or unrelated liquidity constraints and substitutability have been combined in studies by graham and himarios 1991 cushing 1992 and graham 1993 using u s data and by evans and karras 1996 for a number of countries a crucial limitation of most of these studies is the use of aggregate government consumption data which counterintuitively imposes a common substitutability parameter on all components of government spending 2 using recently available time series data for a large number of countries the present paper relaxes this restriction by decomposing government consumption into military and non military components enabling us to separately identify their relationship to private consumption the allocation of government consumption between military and non military functions has varied greatly across countries the appendix reports the average size of military and non military government shares in gdp as well as the military non military ratio by country over the 1970 1989 period average military expenditure as a fraction of gdp for example has ranged in our sample from 0 11 in mexico to 12 30 in jordan similarly the fraction of government consumption absorbed by military expenditure has ranged from 1 09 in mauritius to 66 82 in poland this sizable variability is promising in terms of cross sectional identification power but it also suggests that the estimated parameters must not be assumed to be common across countries the estimated model is derived in section ii which combines liquidity constraints and substitutability by nesting the approaches of hayashi 1982 and aschauer 1985 in the same section we discuss data sources and the estimation strategy which permits the estimated parameters to vary by country in a way that helps determine how they are influenced by country specific factors section iii estimates the model for a panel of the 66 countries for which annual data on all series are available for the 1970 1989 period the paper s main conclusions are given in section iv ii methodology and data we assume that consumers in economy i at time t derive utility from effective consumption c sup which we define as 1 mathematical expression omitted where c is private consumption g sup m and g sup nm are the military and non military components of government consumption the parameters theta sup m and theta sup nm measure the degree of substitutability between c and g sup m and c and g sup nm respectively

global behaviour of a system with imperfect private public substitutability abstract empirical findings reveal that the relationship between private and public consumption generically differs from country to country it is substitutable for some while it is complementary for others the present paper incorporates this regularity into a simple growth model with public goods which affect utility and production the model casts off the standard assumption of socially constant returns to scale and as a result it generates many interesting dynamic features which do not arise with constant returns when the system displays increasing returns the dynamic path may diverge from an interior equilibrium in expanding oscillations suggesting that self fulfilling expectations could play an essential role with decreasing returns the interior equilibrium becomes a saddle point interestingly it turns out that the substitutability versus complementarity distinction does make a difference in affecting the stationary state and its transitional dynamics

private and government consumption with liquidity constraints abstract economic theory predicts that liquidity constraints and substitutability or complementarity between private and government consumption result in excess sensitivity of private consumption to income and government consumption respectively using annual data we estimate these excess sensitivity parameters for each of 54 countries and show that they not only have sensible values but are also correlated with several variables in ways consistent with economic theory our findings imply that the degree of substitutability between government services and private consumption depends negatively on the fraction of government spending that goes to national defense we also find that liquidity constraints typically exist and they are affected positively by output variability and negatively by the saving rate

are consumption and government expenditures substitutes or complements morishima elasticity estimates from the fourier flexible form 1 introduction macroeconomists paid relatively little attention to the economic effects of government expenditures and to alternative methods of financing those expenditures until barro 1974 1979 1981 challenged conventional views on the economic impact of government activity much of the literature stimulated by these studies addressed the effects of alternative financing methods for a given path of government expenditures but barro 1981 also stressed the fact that government expenditures can provide direct welfare to economic agents and that variations in the level of government expenditures may have an impact on the consumption decisions of households as a result many studies estimate the extent to which economic agents treat government expenditures as substitutes to or complements with private consumption expenditures e g kormendi 1983 aschauer 1985 graham and himarios 1991 ni 1995 the degree of substitution or complementarity between private consumption and government expenditures is of crucial importance in assessing the impact of fiscal policies on economic welfare thus it is important to establish the extent to which federal expenditures and private consumption are substitutes or complements as a guide to the design of fiscal policies there is much disagreement about the extent to which consumption and government expenditures are substitutes or complements in use for economic agents 1 studies differ in their details so it is difficult to know what might account for such diverse results but it seems fair to say that the relationship between government expenditures and consumption is largely an open question the diversity of the results however may be a consequence of a number of restrictive assumptions that have been used in various studies many of these assumptions appear hard to justify a priori studies typically estimate the parameters of an equation containing private consumption and government expenditures often assuming that the relevant choice variable for the representative household is an aggregate consumption measure given by the sum of nondurables and services consumption e g aschauer 1985 reid 1985 bean 1986 campbell and mankiw 1990 or the sum of nondurables services and the service flow from durable goods e g kormendi 1983 graham and himarios 1991 this implies that each component of private consumption expenditures is a perfect substitute for the household an assumption for which there is no compelling theoretical basis similarly government expenditures defense nondefense and state and local are typically aggregated e g feldstein 1982 aschauer 1985 reid 1985 graham 1993 with various studies excluding either federal or state and local expenditures just as for private consumption expenditures these aggregation assumptions should be tested rather t han simply imposed in applied work in addition although substitution elasticities are generally not constant in an optimizing framework they are often assumed to be constant in applications by using a single aggregate of consumption or a utility function that imposes a constant elasticity of substitution e g aschauer 1985 and ni 1995 finally none of the above mentioned studies computes elasticities of substitution in a manner consistent with microeconomic utility maximization principles 2 in this article we provide estimates of elasticities of substitution between consumption and government expenditures based on the demand systems approach that has been widely used in testing the neoclassical theory of household behavior see eg deaton and muellbauer 1980 and the survey of barnett et al 1992 this approach has a number of attractive features making it a substantial improvement over the applied studies available in the macroeconomics literature the estimates in this article are based on an optimizing framework where both government and consumption expenditures are treated as choice variables by the representative household

government debt government spending and private sector behavior a current period tax reduction financed by issuing government debt shifts the timing of tax collection from the current period to the future if the future taxes implied by government debt are not fully perceived and discounted by the private sector there will be a net wealth effect that increases private sector consumption thus reducing capital accumulation and growth if on the other hand the implied future taxes are perceived and discounted by the private sector the current period tax reduction will be used to increase private saving to pay for the future taxes and government debt will be absorbed without any real effects on the economy the effects of government spending financed by current period taxation also depend upon private sector perceptions 2 if the benefits of government spending are ignored private sector consumption will decrease in accordance with the reduction in permanent disposable income to the extent that government spending is on consumption type goods that are perceived as substitutes for privately provided consumption goods there will be a relatively greater reduction in private sector consumption to the extent that government spending is on investment type goods yielding future goods and services that are perceived as substitutes for future privately provided consumption goods there will be a relatively smaller reduction in private sector consumption the standard approach to modeling private sector consumption saving behavior involves a rather asymmetric set of assumptions as to how the private sector perceives the various elements of government fiscal policy 3 current period taxes are assumed to be fully perceived but current period government spending is implicitly assumed to be completely ignored by the private sector in considering permanent personal disposable income the private sector is assumed to be forward looking in its assessment of income and taxation the stock of government debt is nevertheless included as part of the stock of private wealth the implicit assumption associate professor of economics graduate school of business university of chicago 1101 east 58th street chicago il 60637 i thank eugene fama levis kochin michael mussa paul evans and an anonymous referee for helpful comments i am particularly grateful to daniel benjamin for contributing many hours of discussion and laura lahaye who was a research assistant and valuable adviser on earlier drafts the theoretical debate on the burden of the debt has been long standing gerald o driscoll 1977 documents ricardo s nineteenth century position robert barro 1974 reopened the debate by introducing the fundamental issue of intergenerational transfers also discussed in merton miller and charles upton 1974 the empirical side of the debate was initiated by levis kochin s 1974 attempt to test for the effects of deficits on consumption and by martin feldstein s 1974 attempt to test for the effects of social security wealth on consumption other empirical contributions include jess yawitz and laurence meyer 1976 myself 1978 and j earnest tanner 1978 1979 with respect to the effects of government deficits and debt and barro 1978 michael darby 1979 and dean leimer and selig lesnoy 1982 with respect to social security wealth see also interesting recent papers by john seater 1982 who generates detailed tests of the effects of deficits and debt on consumption charles plosser 1982 who explores the effects of government spending and debt shocks on interest rates and feldstein 1982 who attempts tests similar to some in this paper see fn 29 2martin bailey s 1962 1971 development of the effects of government spending on private consumption and aggregate economic activity is the seminal contribution paul david and john scadding 1974 extend bailey s ideas and provide some supporting empirical evidence more recently willem buiter 1977 and myself 1978 developed models based on bailey s earlier work barro 1981 has an interesting paper on related issues see also david aschauer 1982 3the standard approach incorporates fiscal policy through the concept of personal disposable income and by including the stock of government debt as part of personal wealth see for example the empirical specification of albert ando and franco modigliani 1963 which has been the basis of most empirical consumption studies since and feldstein 1974 for one of the more influential papers based on the ando modigliani specification

a technique for indicating comparative and perdicting changes in trade ratios this paper estimates relative differences in factor prices and thus industry comparative cost differences between the united states and each of eight country groups by relating differences in factor use requirements and actual bilateral export import ratios across industries predictions concerning changes in industry export import ratios are also made and tested against actual subsequent changes by comparing these trade ratios with those expected on the basis of the estimated average differences in factor costs and assuming that adjustment lags are the major reason for the differences between these ratios

government consumption and private consumption correlations abstract this paper examines whether the introduction of government consumption expenditure in a standard one good model of the international real business cycle is sufficient to reconcile the theory with the existing pattern of international consumption and output correlations it is shown that the model can account for existing international correlations only under specific assumptions about the size of effect of government expenditure on agents utility or the variability of government expenditure shocks crucial parameters are identified and the sensitivity of the results discussed 1998 elsevier science ltd all rights reserved

ricardian equivalence under imperfect information abstract in the us aggregate private consumption changes are excessively sensitive not only to current and lagged changes in income but also to current and lagged changes in government expenditures i give a new theoretical interpretation to this observation i show that this excess sensitivity arises when consumers take into account the link between taxes and government expenditures i e when they are ricardian but lack exact information on the aggregate economy while the model provides a simultaneous explanation for both types of excess sensitivity the strong restrictions that it imposes on the data are not supported by the results of econometric estimation

sensitivity of consumption to income and to government purchases some specification and estimation issues the paper derives a nonlinear error correction model ecm for consumption and shows that existing models that are based on quadratic utility combine permanent income and current income consumption and nest or could nest the hypothesis of substitutability between private consumption and government purchases are special cases of the ecm the importance of some econometric issues that have not received proper attention in the literature is demonstrated by estimating the models using us aggregate quarterly data 1953 1 1992 4 the evidence suggests that the ecm produces more reliable estimates than do the existing restrictive models

factor proportions relative efficiency and developing countries trade abstract this study attempts to assess the extent to which ldc trade in manufactures can be explained by the factor proportions theory and the economies of scale account on the one hand and by commodity characteristics that affect relative efficiency on the other among the relative efficiency characterictics that affects trade patterns are r d intensity total factor productivity in the more developed countries factory size and some input output measures of the degree to which the industry interacts with the rest of the economy

commodity trade and relative returns to factors of production in this paper a model that can be used to estimate relative factor price differences between pairs of countries is developed estimation requires observations of actual bilateral commodity trade flows and knowledge of input requirements for commodity production the linchpin here is the set of relative production cost differences which on the one hand determine trade flows and which in turn are a function of production requirements and relative factor returns the model is implemented to estimate relative factor returns between the united states and each of eight other countries several useful applications of the model are suggested

an empirical analysis on the substitutability between private consumption and government purchases abstract this paper estimates substitutability of government purchases for private consumption using an optimal consumption model the utility function features several types of nonseparabilities the paper finds that gmm estimates are affected by the specification of nonseparability between private consumption and government purchases by the restriction of time separability and by the measurement of real interest rates

public goods merit goods and the relation between private and government consumption in this paper we investigate the relation between public and private consumption by constructing a general government spending data set by function for 12 european countries in particular we split government consumption into two categories the 1rst category public goods includes defence public order and justice the second category merit goods includes health education and other services that could have been provided privately equations from a relatively general permanent income model are estimated by gmm the estimates are fairly robust in showing that public goods substitute while merit goods complement private consumption however the relation between merit goods and private goods turns out to be stronger than that between public goods and private goods thus in the aggregate government and private consumption are complements c