are household portfolios efficient an analysis conditional on housing in this paper we argue that standard tests of portfolio efficiency are biased towards rejection because they neglect the existence of illiquid wealth in the case of household portfolios the most important illiquid asset is housing if housing stock adjustments are costly and therefore infrequent we show how the dynamic optimization problem produces optimal portfolios in periods of no adjustment that are affected by housing price risk through a hedge term when the housing stock is not adjusted we argue that tests for portfolio efficiency of financial asset must then be run conditionally upon housing wealth in our application we use italian household portfolio data from shiw 1998 and time series data on financial asset and housing stock returns to assess whether actual portfolios are efficient we first consider purely financial portfolios and portfolios that also treat the housing stock as another asset we then consider the consequences of treating the housing stock as given and test for efficiency in this framework our empirical results support the view that the presence of illiquid wealth can explain portfolio choice by home owners

physician induced demand for surgery following up the earlier findings by fuchs on surgeon induced demand this paper makes numerous data and econometric improvements in conducting a test of neoclassical and inducement theories a simultaneous equation model is used to estimate physician demand and equilibrium fees for surgery from a sample of 350 psus over the 1969 76 period the results provide definite support for the notion of competitive market failure particularly in large metropolitan areas other things equal fees and utilization are higher in surgeon rich areas although our estimated shift elasticities were only about one third those found by fuchs a statistically significant albeit small price elasticity of demand for surgery was also obtained in contrast to fuchs increasing monopoly and disequilibrium models are also tested without altering the basic findings where surgeons were in short supply their availability significantly affected surgery rates although a small supply effect was found in plentiful areas as well

the role of permanent income and demographics in black white differences in wealth we explore the extent to which the large race gap in wealth can be explained with properly constructed income and demographic variables in some instances we explain the entire wealth gap with income and demographics provided that we estimate the wealth model on a sample of whites however we typically explain a much smaller fraction when we estimate the wealth model on a black sample using sibling fixed effects models to control for intergenerational transfers and the effects of adverse history we find that these factors are not likely to account for the lower explanatory power of the black wealth models our analysis of growth models of wealth suggests that differences in savings behavior and or rates of return play an important role

wealth distribution in life cycle economies abstract this paper compares the age wealth distribution produced in life cycle economies to the corresponding distribution in the us economy the idea is to calibrate the model economies to match features of the us earnings distribution and then examine the wealth distribution implications of the model economies the findings are that the calibrated model economies with earnings and lifetime uncertainty can replicate measures of both aggregate wealth and transfer wealth in the us furthermore the model economies produce the us wealth gini and a significant fraction of the wealth inequality within age groups however the model economies produce less than half the fraction of wealth held by the top 1 percent of us households

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

a further look at household portfolio choice and health status abstract this paper investigates the effect of changes in health status on household financial wealth and financial portfolio choice it is shown that the impact of health events on household financial and non financial wealth is asymmetric a diagnosis of a new disease leads to a larger decrease in financial wealth than in non financial wealth moreover we find that the puzzle pertaining to the relationship between health status and portfolio choice discussed in the extant literature generally disappears after controlling for differences in the amount of financial assets held by healthy and sick people the results suggest that the effect of changes in health status on household financial portfolios is indirect a health shock significantly reduces household total financial wealth in turn leading households to restructure the composition of their financial assets

migration and intergroup conflict abstract two groups in conflict produce and appropriate internally generated consumable output in a two stage game assuming equal within group sharing and endogenous group sizes it is shown how agents leave groups with high productive efficiency and migrate to groups with high appropriative and defensive capabilities

production and conflict models versus rent seeking models a production and conflict p c model and a rent seeking rs model are compared for one group two groups and k groups adding a new agent enlarges the pie in the p c model but causes the fixed size pie to be allocated on one more rent seeker in the rs model the total production or rent is distributed within and between groups according to the within group and between group decisiveness productive and fighting efficiencies and group sizes play a role the collective action problem is more severe for the rs model as group size increases the ratio of within group to between group fighting increases marginally toward a constant for the p c model while it increases convexly for the rs model adding an additional agent to each of two groups is more detrimental to the utilities in rs groups than in p c groups while adding a second group of agents when there is already one group of agents gives the reverse result the severe between group fighting in the p c model for many groups causes the p c model to be preferable for few groups while the rs model is preferable for many groups applications are considered to intergroup migration inside versus outside ownership divestitures mergers and acquisitions multidivisional versus single tier firms and u form versus m form of economic organization

natural resources and internal conflict we present a model of conflict in which each group decides to claim the country s income and invest in arms or to accept a group neutral allocation of income and not invest in arms apart from the usual cooperative or conflictual societies their strategic choice can result in hierarchically stratified societies in which one group is dominant we show how the presence and exploitation of certain types of resources matters for the occurrence of conflict or social hierarchical stratification and for the possible effects of trust manipulation in particular we find that first robust encompassing point and lootable resource rich economies tend to be conflictual plantation economies hierarchically stratified and diversified economies cooperative second foreign intervention aimed at changing the balance of power in the case of conflict is most effective in robust and diffuse resource rich economies third trust manipulation as a means to counter conflict is most effective in subsistence and diffuse resource rich economies throughout the article we cite ample case study and econometric evidence to support our model

financial decision making and cognition in a family context in this paper we studied the association of cognitive traits and in particular numeracy of both spouses on financial outcomes of the family we found significant effects particularly for numeracy for financial and non financial respondents alike but much larger effects for the financial decision maker in the family we also examined who makes these financial decisions in the family and why once again cognitive traits such as numeracy were an important component of that decision with larger effects of numeracy for husbands compared to wives

the strategic bequest motive although recent research suggests that intergenerational transfers play an important role in aggregate capital accumulation our understanding of bequest motives remains incomplete we develop a simple model of strategic bequests in which a testator influences the decisions of his beneficiaries by holding wealth in bequeathable forms and by conditioning the division of bequests on the beneficiaries actions the model generates falsifiable empirical predictions that are inconsistent with other theories of intergenerational transfers we present econometric and other evidence that strongly suggests that bequests are often used as compensation for services rendered by beneficiaries

vulnerable trade the dark side of an edgeworth box abstract we examine incentives to seize and defend goods offered for trade in an edgeworth box economy appropriation possibilities generate equilibrium of coerced redistribution and voluntary trade in a reduced box potential mutual gains remain untaken because the prospect of piracy creates a price wedge wherein the effective relative price is lowered for the exporter and raised for the importer as the vulnerability of one or both goods increases the price wedge widens causing trade to diminish if vulnerability becomes sufficiently high then equilibrium with trade ceases to exist in the edgeworth box economy

does wealth explain black white differences in early employment careers in this article i inquire about the effects initial wealth has on black white differences in early employment careers i set up a dynamic model in which individuals simultaneously search for a job and accumulate wealth and fit it to data from the national longitudinal survey 1979 cohort regime changes and decompositions of racial differences reveal that differences in the labor market environment and in preferences account fully for racial gaps in wealth and in wages persisting several years after high school graduation differences in initial wealth partially explain differences in early employment careers

a dynamic model of conflict and appropriation abstract this paper presents an extension of a static model of economic conflict analyzed by hirshleifer 1991 1995 and skaperdas 1992 to an infinite horizon differential game our aim is to highlight the strategic role of appropriation among a smaller group of agents in an intertemporal context the model yields the conclusion that there exists a unique linear nonlinear markov perfect equilibrium strategy even when strategies are defined over the entire state space we demonstrate that partial cooperation can be seen as a long run response to conflict moreover a decrease in the effectiveness of appropriation the depreciation rate of a common pool stock the rate of time preferences or an increase in the degree of noise improves the degree of partial cooperation and thus welfare in an anarchic society

the estate tax and inter vivos transfers over time the strong dislike evidenced by the american public towards the estate tax suggests that the wealthy wish to transfer resources to their heirs tax free and would thus exploit mechanisms allowing them to reduce the tax burden whenever possible however i find strong evidence that the wealthy fail to utilize what is perhaps the simplest method of tax avoidance that of making transfers to eventual heirs up to the annual exclusion instead they transfer far less than the amount permitted by the tax code whether measured in cross section or over time in failing to give more they forgo significant tax savings

inter vivos transfers and bequests in three oecd countries reforms reducing the generosity of pensions have distributional effects on future generations if individuals care about their descendants welfare but only affect elderly individuals if bequests are the unintentional result of precautionary savings and safety net programmes such as unemployment insurance may displace sources of private help such as that provided by living parents to their children in need this paper provides comparable measures of how expected bequests and transfers vary with cumulated parental earnings in the united states west germany and the united kingdom the strength of bequest motives is empirically very weak in the available data private inter vivos transfers which appear to depend on the recipients economic situation are partly crowded out by public unemployment insurance programmes together involuntary bequests and intentional inter vivos transfers appear to be an important channel of intergenerational inequality transmission and strengthen substantially the relationship between an individual s and his parents economic status ernesto villanueva

racial disparities in life insurance coverage we evaluate the extent to which there are racial disparities in life insurance coverage using multiple years of the survey of income and program participation between 2001 and 2010 we find that african americans hold significantly more life insurance after controlling for other factors especially employer sponsored and whole life insurance we demonstrate that our findings diverge from prior work because we examine all households instead of focusing exclusively on married and cohabitating households the findings on life insurance coverage and composition imply that earnings shocks due to mortality are not a contributing factor to racial disparities in wealth

insecure property and technological backwardness we consider the incentive to adopt superior technologies when private property is insecure the welfare costs of insecure property can be substantially greater than those commonly associated with diversion and with the disincentive effect induced by imperfect appropriation of returns when private property is sufficiently insecure anticipation of conflict over economic distribution gives rise to technological backwardness even though 1 superior technologies are readily available at zero cost and 2 the ex post diversion of resources might be small

initial conditions at emancipation the long run effect on black white wealth and earnings inequality abstract black white wealth inequality is much greater than black white earnings inequality in the united states the existing empirical literature has not been able to fully explain the wealth gap this paper investigates how much of current black white income and wealth inequality can be explained by initial conditions at emancipation and nearly 100 years of segregated schools a two sector model with group specific human capital accumulation and school expenditure differences can explain the path of black white convergence in earnings over the past 130 years the model also reproduces the fact that black white wealth ratios remain much lower than black white earnings ratios

endogenous destruction in conflict theory and extensions this article develops a general equilibrium model of conflict to characterize the implications of endogenous destruction for bargaining and fighting specifically we consider the scenario where two contending parties engage in bargaining to avoid fighting when there are direct costs e g arms buildups and indirect costs e g destruction to consumable resources of conflict without imposing specific functional form restrictions on conflict production and destruction technologies we show their interactions in determining an optimal decision between fighting and bargaining we find that under the shadow of conflict bargaining is costly as the contending parties always allocate more resources to arming for guarding settlement through bargaining than in the event of fighting in contrast to conventional thinking that bargaining is pareto superior over fighting we show conditions under which fighting dominates bargaining as the nash equilibrium choice the positive analysis may help explain the general causes of fighting without resorting to the assumption of incomplete information or misperceptions jel d74 h56 c7

health care expenditures and gdp panel data unit root test results abstract this short paper presents unit root test results for time series on per capita national health care expenditures and gross domestic product in the oecd unlike the country by country test used by hansen p king a 1996 the determinants of health care expenditure a cointegration approach j health econ 15 127 137 the test we employ exploits the panel nature of the oecd data using this approach we are able to reject the null hypothesis that these series contain unit roots no single test is likely to be definitive in this rapidly evolving area of econometric research however our results help to mitigate concern that panel data analyses of national health care expenditures are misspecified

health care education and the cost disease a looming crisis for public choice an economic specter haunts the democratic governments of the world s most prosperous economies the rising cost of health care and education casts a shadow over virtually every election while increasing costs of other services play a part in the growth of the homeless population and the deteriorating sanitation of city streets it will be shown here that both an explanation and a solution in principle are available however while the solution is in one sense simple and straightforward in another it poses a problem of frightening magnitude for public choice if the citizens of these countries are willing to do what is necessary for the supply of educational health care and other related services to keep up with the expansion in overall economic output made possible by rising productivity then if my analysis is correct a difficult choice will be required either ever more of gross national product will have to be channeled through the public sector with all the problems we know that to entail or alternatively these services will have to be transferred to private enterprise in fields where private business firms can hope to succeed only if granted an improbably immunity from the temptation of unwise governmental interference this is indeed scylla and charybdis in spades

deterrence in contests this paper explores the role of deterrence in contests as a general rule we show that for a deterrence strategy to be played by rational agents it is necessary that the contest be destructive we show for a very general class of functions that pure strategy deterrence equilibria where contestants deter one another do not exist a corollary of this finding is that under fairly general conditions agents should always be expected to engage in contests applied to international relations our results imply that war is always a potential outcome despite deterrence attempts

technology and health expenditures a demand approach applied to a process innovation there is controversy among economists as to whether the diffusion of new medical technologies has been a contributing factor to rising health expenditures the economic literature is critically reviewed and another approach is advocated this alternative approach rests on the distinction between product and process innovations it is argued that the relationship between process innovations and health expenditures can be illuminated by determining if the process innovation and the original procedure are utilized as substitutes the empirical results provide no indication that alternative technologies for diagnosing diseases conditions of the upper gastrointestinal tract have been utilized as substitutes by australian medical practitioners operating on a fee for service basis this study finds no evidence to indicate that the process innovation of fibre optic endoscopy has reduced health expenditures associated with diagnosis of diseases conditions of the upper gastrointestinal tract

what makes a landlord ownership of real estate by us households households supply about three quarters of us rental housing the paper examines the real estate investment decision and the proportion of wealth invested in real estate hypotheses drawn primarily from the real estate finance literature about the role of wealth expected inflation human capital income tax rates race health risk aversion and inheritance are tested against data from the health and retirement study wealth has a powerful non linear effect on ownership of real estate but ownership is negatively associated with human capital marginal tax rates race and property gifts affect real estate investment poor health risk aversion and expected inflation do not seem to

external threat and collective action i introduction individuals with common interests usually attempt to further their welfare by acting collectively examples of collective action include the provision of a public good or collective good the establishment of clubs and the formation of alliances or political parties in his seminal work the logic of collective action olson 1965 uses the provision of collective goods as an example to discuss collective action problem or coordination failure in particular he analyzes how group size and the distribution of individual benefits of a collective good may affect the provision level of the good two of the most celebrated propositions from his book are the suboptimality proposition the larger the group the farther it will fall short of providing an optimal amount of a collective good p 35 and the exploitation proposition there is a systematic tendency for exploitation of the great by the small p 29 these propositions have generated a broad research effort in collective action problems in economics and political science many scholars have examined the validity of these propositions 1 a limitation of olson s theory is that he analyzed collective action problems as phenomena within a single group while assuming that external threat to a group either does not exist or is treated as a constant in many cases however two or more groups compete against each other in these situations a group s provision of collective goods might be affected by the configurations of its own group and the competing groups and relative strength of the groups to illustrate assume that two alliances of states say a and b are competing for supremacy an increase in a s military spending poses a greater threat to b s security in response to the heightened threat members of b might feel the need to increase their military spending which in turn could affect the military spending decisions of members of a bruce 1990 develops a model that endogenizes external threat in a three country model with two allies and one adversary interest group lobbying is another example to understand a group s lobbying behavior scholars often focus on the number and size of firms within the group and their geographical distribution however the configuration of a competing interest group and the two groups relative strengths should also figure into an individual firm s decision concerning the appropriate contribution to its group s lobbying efforts other examples include party discipline voter turnout ledyard 1981 1984 palfrey and rosenthal 1983 electoral coalitional politics tsebelis 1990 hausken 1995a b negative campaigning in primary elections newman and niou 2000 factional rivalry in civil wars and joint ventures for research and development in industrial organizations all these examples point to the importance of external threat in explaining the logic of collective action in this article to study simultaneously the way intergroup competition and intragroup collective action interact we develop a collective good model that endogenizes external threat in the context of competition between two groups a group can be either defensive or offensive in nature we define a group as defensive if its fighting capacity can be used only to defend its own resources a group is offensive if its fighting capacity can be used to expropriate resources from its rivals as well as protect its own resources we realize that empirically it is difficult to determine whether a group is offensive or defensive but theoretically it is useful to know how the offensive or defensive nature of a group can affect the collective action problem we analyze collective action problems when 1 one of the groups is offensive whereas the other is defensive and 2 both groups are offensive respectively also in group competition if conquests are economically profitable the way spoils of victory are divided among group members can also affect collective action

health care expenditure and integration in the countries of the european union national health care differs between the member states of the european union in the quality and quantity demanded and supplied reflecting different economic structures and health care organization and delivery systems since health care expenditure depends primarily on the level of economic development and the structure of the population only convergence in economic performance and the standards of living can lead to convergence of health expenditure standards

racial differences in patterns of wealth accumulation making use of psid data for 1984 1989 and 1994 we examine race differences in patterns of asset accumulation our results indicate as expected that inheritances raise the rate of wealth accumulation of whites relative to that of african americans but while whites devote a greater share of their income to saving racial differences in saving rates are not significant once we control for income though our results may be period specific we also do not find evidence that the rate of return to capital is greater for whites than for african americans simulations suggest that african americans would have gained significant ground relative to whites during the period if they had inherited similar amounts saved at the same rate had comparable income levels and more speculatively had portfolios closer in composition to those of whites

aggregate health care expenditure in the united states evidence from cointegration tests unlike recent studies that are based on international cross sectional series this paper attempts to quantify the role of the determinants of aggregate health care expenditure per capita using time series data for the period of 1960 87 for the united states the paper applies the relatively new procedures of unit root testing cointegration and error correction modelling the evidence supports cointegration although the results indicate that per capita income age of the population number of practising physicians and public financing of health care are important determinants the age structure of the population and number of practising physicians emerge as the major determinants of aggregate health care expenditure in the united states

optimal diversification and risk taking a theoretical and empirical analysis among the justifications for capital property income received by private households is that it is a return to risk taking however portfolio diversification provides an obvious means toward the reduction of risk moreover it is widely believed that the wealthier the household the more diversification it practices the larger tends to be the proportion of its total portfolio allocated to publicly traded stock and the larger tends to be the number of individual stock issues included in its portfolio using a simple homogeneous securities model explicit functional forms are obtained for both the optimal proportion of the portfolio allocated to stocks and the optimal number of individual stock issues in the portfolio empirical evaluation of these theoretical results using a dataset derived from the 2004 survey of consumer finances scf lends substantial support to the model applying these empirical results it is found that as household capital wealth increases expected capital income increase

aggregate health care expenditures and national income is health care a luxury good it is well known that a strong relationship exists between national expenditures on health care and national income this has been used to suggest that health care is a luxury good and that factors such as the type of health care delivery system in a country are of little importance in determining expenditure levels this paper argues that these implications rely upon the application of microeconomic analysis to macroeconomic data and that this is not appropriate as well as raising questions about the inferences drawn from previous studies new empirical evidence is presented which casts some doubts on previous findings international comparisons are based on purchasing power parity rather than exchange rate conversions underlining the importance of prices as well as quantities in the relationship and leading to the conclusion that the aggregate data show health care to be if anything a necessity rather than a luxury good

physicians choices of specialty location and mode a reexamination within an interdependent decision framework in this paper physicians decisions regarding the specialty community size and mode of their first practices are analyzed in a simultaneous decision model using a nested logit specification physicians face a choice set consisting of eight specialties seven community sizes and three practice settings data come from the longitudinal survey of the class of 1960 income is found to be statistically significant and the average income elasticity is 1 05 which is considerably larger than previous estimates however the elasticity estimate is very sensitive to the assumed decision process a series of policy simulations are then performed to estimate the effect of specified income based policies on the predicted distribution of physicians across specialties community sizes and modes

pricing profits and technological progress in the pharmaceutical industry the decades old debate over pharmaceutical industry prices profits and innovation has again intensified a number of events coalesced to refocus public interest on pharmaceuticals contributing to public concern were bureau of labor statistics price index increases for pharmaceuticals far outpacing those for the products of other industries another prominent characteristic of the pharmaceutical industry has been its extraordinarily high reported profitability this article examines the phenomena that precipitated the current pharmaceuticals debate their historical antecedents and the principal questions at issue in the author s considered judgment a pell mell march toward regulation of pharmaceutical industry pricing could seriously impair the industry s incentives for investment in new products

naive diversification strategies in defined contribution saving plans there is a worldwide trend toward defined contribution saving plans and growing interest in privatized social security plans in both environments individuals are given some responsibility to make their own asset allocation decisions raising concerns about how well they do at this task this paper investigates one aspect of the task namely diversification it is shown that some investors follow the 1 n strategy they divide their contributions evenly across the funds offered in the plan consistent with this naive notion of diversification it is found that the proportion invested in stocks depends strongly on the proportion of stock funds in the plan

income elasticities of household expenditures a us cross section perspective two linear engel functions are estimated for household total expenditure and for 15 aggregated classifications of consumer durable non durable and service expenditures one model contains only income as the regressor variable the second model incorporating a broad range of household demographic variables introduces three new regressors number of earners in the household self employment status of the reference person and value of household financial assets utilizing cross section data on annual expenditures income elasticities are derived and compared across models the expanded engel model dramatically strengthens estimates for all expenditure categories and generates income elasticities generally lower than those derived from the simpler engel function

on the social efficiency of conflict abstract in sharp contrast with the economic literature on conflict this paper shows that confrontation may be efficiency enhancing conditions are derived under which a contest over the exclusive control of a resource pareto dominates peaceful access

black white wealth inequality is inheritance the reason i introduction on average black americans have less wealth than white americans previous studies of wealth reveal that blacks hold on average between 10 and 25 of the wealth held by whites as reported in terrell 1971 smith 1975 sobol 1979 blau and graham 1990 and wolff 1992 a number of possible explanations for this gap have been suggested particularly differences in income and various socio economic characteristics between black and white households however the average difference in black white household income is much less than the difference in black white household wealth wolff 1992 reports that black household income averaged 63 of white household income in 1989 a ratio which had persisted over the previous twenty years consequently there must be additional factors which explain the greater racial wealth differential recently economists such as blau and graham 1990 and wolff 1992 have surmised that differences in intergenerational transfers might account for much of the unexplained racial difference in wealth we document the large difference in wealth between blacks and whites and then attempt to account for this difference paying particular attention to the effect of inherited wealth a number of investigators have speculated on the possible importance of inheritances in explaining racial differences in wealth in a comment on smith s 1975 analysis of black white wealth differentials vito natrella 1975 noted that smith only explained 25 of the wealth differential through differences in economic variables natrella conjectured that the really significant determinants not included in smith s analysis were prior income inherited wealth and the propensity to save p 370 wolff 1992 suggested that differences in intergenerational transfers provide a plausible explanation of the black white wealth gap but provided no supporting evidence in a recent article blau and graham 1990 attempted to explain racial differences in wealth at the household level as a result of differences in household income location and demographic factors however they found that three quarters of the racial difference in wealth remained unexplained they speculated that racial differences in inheritance and other intergenerational transfers most likely play an important part p 338 in explaining the remaining black white differences in wealth if true this explanation would have important policy implications e g higher rates of inheritance taxation could reduce wealth differences between races ii data in this paper we attempt to empirically verify the hypothesized importance of inheritances in explaining the differences in black and white household wealth our empirical analysis makes use of two data sets which report both household wealth and household inheritances the 1976 national longitudinal surveys of mature men nls76 and the 1989 survey of consumer finances scf89 the nls76 sample was chosen to be representative of the u s male population aged 45 to 59 years old in 1966 with an oversampling of black households our analysis focuses on the sample of 2 019 respondents who survived through 1976 and reported all variables required for our analysis 1 more information about the nls76 can be obtained from the center for human resource research 1992 the scf89 sample was chosen to provide a comprehensive picture of the financial situation of all u s households in 1989 the scf89 oversampled high income households we make use of the complete sample encompassing the multiple imputation procedure employed by researchers at the board of governors of the federal reserve system more information about these data can be obtained in kennickell and shack marquez 1992 since both data sets employ oversampling of particular population segments all sample statistics reported in this paper are sample weighted in the nls76 respondents were asked to report whether they or their spouse had received any girl inheritance or prize such as a lottery or award greater than 1 000

the impact of intergenerational transfers on household wealth inequality in japan and the united states our paper sheds light on the implications of intergenerational transfers for wealth inequality by examining whether or not individuals who receive intergenerational transfers from their parents are more likely to leave bequests to their children than those who do not using microdata for japan and the united states the estimation results show that the receipt of intergenerational transfers from parents and or parents in law increases the likelihood of individuals leaving bequests to their children in both japan and the united states which in turn is likely to contribute to the persistence or widening of wealth disparities however such a tendency is found to be stronger among less better off households in both countries and this may help alleviate the disequalising effect of intergenerational transfers on the distribution of wealth at least to some extent

organization development and firm performance a comparison of multinational and local firms this study examines the usage and outcomes of organization development od interventions in multinational firms we test competing hypotheses derived from the cultural and institutional isomorphic perspectives data from firms operating in hong kong show that western firms u s and european are more receptive to od interventions than asian firms local and japanese which supports the cultural explanation however the local isomorphism explanation is valid in predicting organizational outcomes that od interventions have similar effects regardless of a firm s country origins hence neither perspective alone is sufficient to explain both usage and outcomes this implies that local adaptation of od interventions is a complex issue for managing multinational firms

an examination of country and culture based differences in compensation practices this study explores the relationship between country based and culture based differences in pay practices pay data from forty one manufacturing industries in twenty eight countries across five different culture clusters were examined although significant differences were found between countries in terms of pay level the largest portion of the variance in the relationship between wages and benefits is due to cultural affiliation the implications for cultural clustering theory and internationally pay decisionmaking are discussed

the effect of means tested income support for the elderly on pre retirement saving evidence from the ssi program in the u s abstract we attempt to draw inferences about behavioral responses to means tested income support for the elderly by examining the effects on saving of the supplemental security income ssi program for the aged in the u s part of this program provides payments to the poor elderly operating as a means tested public retirement program we exploit state level variation in ssi benefits to estimate the effects of ssi on saving using data from the 1984 survey of income program participation we find evidence that high ssi benefits reduce saving among households with heads who are approaching the ssi eligibility age and are likely participants in the program

racial and ethnic differences in wealth in the health and retirement study this paper examines wealth data in the health and retirement study hrs in comparison with asset data in other major surveys the quality of hrs asset data is high missing asset data does remain a problem however to which future hrs analysts must remain sensitive evidence is presented showing that it is no accident that asset data are missing and solutions for imputing missing data are developed finally racial and ethnic wealth disparities are large these minority wealth disparities are due in part to differential inheritances and desired bequests as inequities perpetuate themselves across generations the disparities are also due to lower minority incomes poorer health and an excessively narrow definition of wealth that excludes social security and employer pensions authors

conflict and rent seeking success functions ratio vs difference models of relative success the rent seeking competitions studied by economists fall within a much broader category of conflict interactions that also includes military combats election campaigns industrial disputes lawsuits and sibling rivalries in the rent seeking literature each party s success pi which can be interpreted either as the probability of victory or as the proportion of the prize won has usually been taken to be a function of the ratio of the respective resource commitments alternatively however pi may instead be a function of the difference between the parties commitments to the contest the contest success function csf for the difference from is a logistic curve in which as is consistent with military experience increasing returns apply up to an inflection point at equal resource commitments a crucial flaw of the traditional ratio model is that neither onesided submission nor two sided peace between the parties can ever occur as a cournot equilibrium in contrast both of these outcomes are entirely consistent with a model in which success is a function of the difference between the parties resource commitments

prosperity without conflict abstract social conflict and slow growth are features of many developing economies this paper considers the role institutions of property rights and conflict management can play in both achieving prosperity and mitigating conflict in these economies we study how introducing conflict over economic distribution into an otherwise standard model of growth can shape optimal second best taxation policy when diversionary activities cannot be taxed in this context we find that the maximization of economic efficiency may call for a reduction in growth in order to mitigate the problem of diversion even though the economy s growth is inefficiently slow in the absence of taxation this is so when institutional quality is sufficiently poor but not otherwise the paper warns against the conventional justification of growth promoting policies on efficiency grounds independently of institutions

effective property rights conflict and growth abstract this paper shows how the interaction between conflict and growth can give rise to a nonmonotone relationship between property rights and social welfare this interaction is illustrated in a model of endogenous growth in which equilibrium diversion of resources is the cost of securing effective property rights a symmetric equilibrium allocation associated with more secure property rights and faster growth can be pareto dominated by one associated with poorer property rights and slower growth faster growth can exacerbate the problem of diversion whenever property rights are sufficiently poor these results call for caution before a society decides to pursue economic growth independently of the institutional structure of property rights furthermore if this structure is inappropriate piecemeal reform might not be in the interest of society and a substantial reform might be necessary if it is to be welfare improving

city equilibrium with borrowing constraints structural estimation and general equilibrium effects this article develops a general equilibrium model of location choice where mortgage approval rates determine household specific choice sets estimation of the model using san francisco bay area data reveals that the price sensitivity of borrowing constraints explains about two thirds of the price elasticity of neighborhood demand general equilibrium analysis of the 2000 2006 relaxation of lending standards predicts the following impacts on prices and neighborhood demographics i an increase in house prices accompanied by a compression of the price distribution and ii a reduction in the isolation of whites reflecting gentrification both predictions are supported by empirical observation

evidence on the determinants of canadian provincial government health expenditures 1965 1991 abstract real per capita provincial government expenditures on health care over the period 1965 1991 are examined using pooled time series cross section regression analysis key determinants of real per capita provincial government expenditures on health care over the period 1965 1991 are real provincial per capita income the proportion of the provincial population over age 65 and real provincial per capita federal transfer revenues established program financing had a negative and significant impact on real per capita provincial government health expenditures in newfoundland and quebec an income elasticity of 0 77 implies that health care is not a luxury good

car ownership and the labor market of ethnic minorities we show how initial wealth differences between low skilled minorities and white workers can generate differences in their labor market outcomes this even occurs in the absence of a taste for discrimination against ethnic minorities or exogenous differences in distance to jobs because of the initial wealth difference minorities cannot afford to buy a car while whites can car ownership allows whites to reach more jobs per unit of time which gives them a better bargaining position in the labor market as a result in equilibrium ethnic minorities end up with both higher unemployment rates and lower wages than whites furthermore we also show that it takes more time for minorities to reach their jobs even though they travel less miles when employed those predictions are consistent with the data better access to capital markets or better public transportation will reduce the differences in labor market outcomes

employment tenure and earnings profiles in japan and the united states comments the relationship between job tenure and annual earnings in japan has received considerable attention from social scientists examining employment contracts and the japanese compensation system in their widely cited article masanori hashimoto and john raisian 1985 using data for 1980 showed that japanese men have greater job tenure than comparable workers in the united states and that the earnings of japanese men rise more rapidly with increased tenure they found that an additional year of tenure increases earnings in both small and large firms in japan more than does an additional year of general market experience their results for the united states indicate that general market experience increases earnings more than an additional year of job tenure the 1970 s and 1980 s were a period of substantial change in japanese labor markets due to the rapid aging of the population and the restructuring of the economy following the oil crisis the present analysis extends the work of hashimoto and raisian by estimating earnings equations for japanese men for the years 1971 1976 1981 and 1986 specifically we wish to investigate whether hashimoto and raisian s findings have been stable over time or whether changes in the labor market have altered the importance of tenure relative to total labor market experience in the japanese labor market i changes in the labor market

an econometric analysis of health care expenditure a cross section study of the oecd countries this paper is an empirical examination of the determinants of aggregate health care expenditure the paper presents a systematic analysis of relationships across 19 oecd countries showing the effects of aggregate income institutional and socio demographic factors on health care expenditure the results indicate that institutional factors of the health systems in addition to per capita gross domestic product gdp contribute significantly to the explanation of the health care expenditure variation between countries for example the way physicians in outpatient care are paid and the mixture of public private funding and inpatient outpatient care

racial differences in homeownership and housing wealth 1970 1986 racial differences in homeownership and housing wealth 1970 1986 black couples are found to own a disproportionately low share of aggregate housing wealth in the united states because they are less likely than whites to be homeowners and because black owned houses have lower market values than white owned houses probability of ownership and house value equations corrected for selectivity bias are estimated with national data for 1970 1980 and 1986 trends in racial differences in homeownership and house value are identified and reasons for their existence are investigated i introduction the wage gap between blacks and whites has been the subject of many labor market studies during the last two decades these studies spawned similar analyses of racial differences in other markets such as housing concern over the black white differential in economic well being continues today with recent attention focusing on the wealth gap between blacks and whites andrew brimmer 1988 points out that blacks owned only 3 0 percent of accumulated wealth in the united states in 1984 even though blacks received 7 6 percent of total money income that year and they comprised 11 percent of all households 1 the equity accumulated in homes constituted the most important form of wealth held by blacks but even so the black share of home equity was only 4 4 percent of the total the value of black owned housing will be disproportionately low if a blacks are not as likely as whites to own homes and b blacks houses are relatively less valuable than whites houses in this paper we investigate both of these possibilities with national data on black and white households covering the period 1970 86 2 existing research has concentrated primarily on racial differences in the probability of homeownership with an eye toward determining the extent of discrimination 3 at least two prominent congressmen joseph kennedy of massachusetts and henry gonzalez of texas have charged that government regulators routinely allow discrimination in home mortgage lending because most studies have relied on data from the 1960s and early 1970s often covering only certain metropolitan areas no reliable estimates of the national trend in black homeownership and housing market discrimination during more recent years exist the question of how much housing blacks consume relative to whites given the decision to own has received only scant attention in the literature yet both decisions influence wealth distribution our study compares the racial differentials in these two dimensions of the housing choice ownership and value a basic hypothesis of the paper is that house value differentials by race will be larger than homeownership differentials by race since the factors that determine house prices are more numerous and probably more susceptible to discriminatory influence than the conditions that influence the decision to own rather than rent ii a model of the homeownership choice this section describes a model of the homeownership decision that can be applied to available data the model is similar to those of previous studies in that it relates the probability of owning a home to several explanatory variables reflecting economic demographic and locational characteristics of the household it differs in an important respect however in that it is estimated on a sample that contains only husband and wife households 4 most earlier studies that have used samples drawn from the entire population have controlled for different household types e g single female headed widowed by means of dummy variables this procedure generally constrains the impact of race on the housing choice to be equal for all household types in addition mcdonald 1974 has pointed out that the current values of variables such as income and labor market activity are more apt to misrepresent their permanent levels for single person or female headed households

on the determination of the us aggregate health care expenditure per capita real health care expenditure is examined against three major groups of explanatory variables economic demographic and health stock and it is found that the three groups of variables have an impact on real health care spending other subcategories such as real private and government health care pharmaceutical dental home nursing ambulatory personal medical consumption and in patient expenditures have also been examined and have been found to be affected by the explanatory variables for several subcomponents there is evidence of supplier inducement of the demographic group of variables the ageing population had an impact only on the per capita real overall and private health care outlay and pharmaceutical spending also cointegrating relationships were found and consistent estimators of the elasticities found

the transition to home ownership and the black white wealth gap this paper analyzes differences in the likelihood that black and white families become homeowners by following a sample of black and white renters over time we are able to separately study racial differences in the likelihood of applying for a mortgage and in the likelihood that a mortgage application is accepted although its effect on the race gap in housing transitions is small we find strong evidence that black applicants are almost twice as likely as comparable white households to be rejected even when credit history proxies and measures of household wealth are accounted for we show that the housing transition gap exists primarily because blacks are less likely to apply for mortgages in the first place the analysis suggests that differences in income family structure and in the ability and willingness of parents to provide down payment assistance are the primary reasons for this applications gap we speculate that the portion of the gap that remains unexplained after controlling for income d

the wealth of mexican americans this paper analyzes the sources of disparities in the relative wealth position of mexican americans results reveal that unlike the racial wealth gap mexican americans wealth disadvantage is in large part not the result of differences in wealth distributions conditional on the underlying determinants of wealth rather mexican americans wealth disadvantage is attributable to the fact that these families have more young children and heads who are younger mexican americans low educational attainment also has a direct effect in producing a wealth gap relative to other ethnic groups even after differences in income are taken into account income differentials are important but do not play the primary role in explaining the gap in median net worth finally geographic concentration is generally unimportant but does contribute to narrowing the wealth gap between wealthy mexican americans and their white and black counterparts

economies of scope and scale in green advocacy environmental advocacy is a large and growing activity whilst a number of economists have analysed the advocacy process no systematic attempt has been made to understand the factors influencing the organisation of the sector we explore the relationship between economies of scale and scope in advocacy under the most popular specification of a tullock type contest economies of scope arise when and only when the scale of that activity is sufficiently large the incentives for merger are socially efficient implying no need for policy intervention

do newly retired workers in the united states have sufficient resources to maintain well being a current policy issue is the extent to which savings are sufficient to sustain economic well being in retirement we compare annuitized wealth at retirement to three preretirement consumption estimates about one half of new retirees have insufficient resources to enable the full maintenance of estimated preretirement consumption in retirement and about 40 fail to meet the 0 7 of earnings standard that is used in many studies using standards reflecting social poverty norms we find a less serious problem about 5 25 of new retirees have insufficient resources to enable an above poverty near poverty level of living during retirement jel j14 j26

the substitution bias of the laspeyres price index an analysis using estimated cost of living indexes the most commonly used measure of the cost of living the consumer price index cpi published by the bureau of labor statistics is essentially a laspeyres price index it is well known however that a laspeyres price index provides an upward biased estimate of the cost of living because in keeping the same base period basket of goods as weights it does not take into account substitution among commodities induced by relative price changes the magnitude of the bias is an empirical question which is the focus of this study an estimate of the substitution bias may be obtained by taking the difference between the laspeyres price index and an estimated true cost of living index the true cost of living index cli is based on the theory of consumer demand it is the ratio of the minimum expenditures under two different price regimes necessary to maintain a constant level of utility as opposed to the constant basket of goods in the laspeyres index the size of the bias depends on two factors 1 the size of consumption substitution elasticities if there is no commodity substitution then the cli and laspeyres index coincide regardless of changes in relative prices and 2 the magnitude of relative price changes if all prices move together then the cli and laspeyres index again coincide regardless of the size of substitution elasticities in order to compute a true cli it is necessary to specify a particular utility function and estimate the parameters of the resulting system of demand equations see for example louis phlips p 135 several estimates of the magnitude of the substitution bias have appeared in the literature but all previous studies suffer from a common weakness they are all based on a very small number of commodities essentially because of econometric problems involved in estimating large systems of demand equations in one group of studies demand models have been estimated using highly aggregated data in which total consumption is grouped into four to nine aggregate commodites such as housing durables or clothing arthur goldberger and theodore gamaletsos for example estimate the linear expenditure system les demand model using data on five aggregate goods for several european countries and compare the resulting cli for one of the countries greece to the corresponding laspeyres price index tran van hoa estimates costof living indexes for six australian provinces using data on nine aggregate goods phlips cites work by r sanz ferrer who computed a cli for belgium from data on eight aggregate commodities in such studies using highly aggregated data the estimate of the substitution bias may be understated because the aggregation obscures substitution in consumption within categories which is perhaps more prevalent than substitution between gross aggregates another shortcoming of these three aggregate studies is the fact that they use only a single demand system and hence do not explore the sensitivity of the cli to a priori u s bureau of labor statistics the groundwork for this study was my dissertation i would like to thank the chairman and members of my committee r robert russell llad phillips and robert deacon for their support and helpful suggestions and jack triplett robert pollak richard j mcdonald and a referee for valuable comments on an earlier version the views expressed are my own and do not necessarily reflect the policies of the bureau of labor statistics for a theoretical discussion of cost of living indexes see robert pollak 1971b and paul samuelson and subramanian swamy

an empirical model of the demand for health care in belgium the paper presents an empirical model of the demand of health care in belgium the analysis pertains to 17 categories of medical care and to two subgroups of health insurance beneficiaries namely the active and the widows orphans pensioners and invalids the estimation results show that income and relative prices matter in the demand for medical care supplier induced demand is also detected for a number of medical care categories other explanatory variables in the model include the size of the child population climatic conditions and a time trend representing technological advances in health care

sanctions and civil conflict using a formal general equilibrium framework this paper analyses how sanctions imposed on the contestants in civil conflict affect the welfare of these contestants and the allocation of resources to conflict it is shown that weak sanctions can hurt the contestant they are supposed to help while strong sanctions augment the expected welfare of their intended beneficiaries moreover sanctions are more likely to be successful if the contestant who is subject to sanctions can expect to derive a positive income in case of compliance the likelihood of success rises as this income increases

compensation across executive labor markets what can we learn from cross listed firms there is wide consensus that chief executive officers ceos of us firms earn significantly more than their canadian counterparts using a matched sample we find that the majority of this difference is due to us ceos earning 50 more than ceos of canadian non cross listed firms we find no such us premium for canadian cross listed firms because the use of options allows the cross listed firms to keep pace with their neighbors to the south while firms that list only in canada compete in the labor market defined by their national boundary cross listed firms appear to be competing directly with their us counterparts for executive talent in investigating alternative explanations for the elimination of the compensation differential for canadian cross listed firms we find evidence consistent with both the bonding and the rent extraction hypotheses

mutual raiding of production and the emergence of exchange joint exchange and raiding can emerge in a world of mutual raiding when the appropriated production is less valuable to the appropriator than to the defender and the defense is not too inferior to attack the amounts of resources allocated to production and raiding and the amounts of goods exchanged reciprocally are determined endogenously the model reduces to pure exchange and pure raiding as special cases pure exchange emerges when the usability of appropriation is sufficiently low pure raiding emerges if the defense is sufficiently inferior to attack the results of the model are intermediate between the results of the two extreme cases jel c6 c72 d51 d72 d74 f10 i introduction in the american civil war each side to some extent looted the other still some true reciprocal exchange between the two sides was conducted by blockade runners whereby the south exported cotton and imported manufactured goods varying across time space pure market exchange may be supplemented by or grow out of such activities as war piracy 1 corruption 2 extortion 3 crime 4 plundering or theft referred to as raiding or mutual raiding generally agents individuals groups companies nations can meet their consumption needs by exchange of goods in accordance with comparative advantage or else by attempts at confiscating the other s production resources goods or trade flows each route has been the subject of separate study this article develops a model in which the equilibrium balance between the two ways of acquiring desired goods is determined by the values of various parameters governing the productive and conflictual processes involved how can exchange conducted voluntarily and with mutual advantage emerge in a world where appropriation and defense through mutual raiding appear to be more natural means of survival 5 classical economics describes how agents exchange goods reciprocally voluntarily and nonviolently 6 political economy describes how agents appropriate and defend one productive resource without reciprocal exchange 7 a few authors attempt to integrate production exchange and appropriation 8 this article lets two agents exchange goods reciprocally and raid each other s production mutually hausken 2003 33 36 classifies the 78 possible models in the exhaustive spirit of rapoport and guyer 1966 for how one or several of the five objects production resources consumption goods exports and imports can be set under attack as is also the case for rider 1999 anderton et al 1999 and anderton 1999 this article utilizes ratio forms of the contest success function 9 reduction to a pure exchange model presented in section ii or a pure raiding model occurs by adjusting parameters also assuming raiding of production rider 1999 claims that pure exchange is impossible 10 which is correct when the production is equally valuable to the appropriator and defender rider shows that in the absence of pure exchange it could turn out and in fact it inevitably turns out that the advantages of diversified consumption achieved by mutual raiding exceeds the wastage of fighting effort if his result were universal one would not observe pure exchange in the real world which in fact we do accordingly this article shows that rider s 1999 result is not inevitable even when accepting his assumption that each agent produces only one of the two desired goods we believe that the two characteristics value of appropriation and superiority of defense over attack 11 are realistic and help explain the empirics as well as reciprocal exchange in the real world 12 regarding the first characteristic grossman and kim 1995 1279 present the following argument which is contrary to most contest models which let appropriated objects be equally valuable to the appropriator and the defender we also allow for the possibility that predation is destructive by which we mean that in any appropriative interaction the predator gains less than the prey loses

investment choice and asset allocation of italian households the discrete continuous approach financial and monetary policies are considered to be effective depending on the reaction of financial markets which are increasingly populated by households in this article from intertemporal settings i derive a financial almost ideal fai demand system and i estimate it by highlighting the determinants of both limited participation to financial markets and asset substitutability complementarity in the allocating stage finally the wealth elasticities provide some further insights on the low diffusion of the newer and more complex financial instruments across italian households

black white differences in wealth and asset composition using data from the 1976 and 1978 national longitudinal surveys of young men and young women this study examines racial differences in the magnitude and composition of wealth and the reasons for them on average young black families hold 18 percent of the wealth of young white families and hold their wealth in proportionately different forms even after controlling for racial differences in income and other demographic factors as much as three quarters of the wealth gap remains unexplained we speculate on the causes for this concluding that racial differences in intergenerational transfers and to a lesser extent barriers to the accumulation of business and home equity most likely play a role

the determinants and effects of health expenditure in developed countries previous studies of international differences in health spending have been restricted to the use of relatively small samples of cross sectional data our objective here is to re examine the results of previous work using a sample of 560 pooled time series and cross section observations results confirm the importance of gdp as a determinant of health spending with an estimated income elasticity at or around unity but also suggest that oecd countries should not be regarded as a single homogeneous group the importance of some non income variables is also confirmed although the direct effect of these factors appears to be small

swords or plowshares a theory of the security of claims to property this paper develops a general equilibrium model of the allocation of resources among appropriative and productive activities the model emphasizes the distinction between offensive weapons which are the instruments of predation and fortifications which provide defense against predation the analysis of this model shows how the equilibrium security of claims to property is determined the analysis focuses on the possibility of a nonaggressive equilibrium in which no resources are allocated to offensive weapons and claims to property are fully secure we also analyze the complex relation between economic welfare and the security of claims to property we find for example that a relatively poor agent could be better off in an equilibrium with less secure claims to property

land inequality and conflict intensity this paper investigates the impact of land inequality on conflict intensity a fundamental distinction with the existing literature lies in the nature of inequality under consideration we investigate how land inequality across landlords only influences the intensity of the fight against a rebel group comprised of landless individuals we show that conflict intensity is non monotonic in land inequality in particular the most severe conflicts occur for intermediate land inequality levels moreover a pareto improving and thus voluntary transfer of land from the smaller to the larger landlord may exist

match bias in wage gap estimates due to earnings imputation about 30 of workers in the current population survey have earnings imputed wage gap estimates are biased toward zero when the attribute being studied e g union status is not a criterion used to match donors to nonrespondents an expression for match bias is derived in which attenuation equals the sum of match error rates attenuation can be approximated by the proportion with imputed earnings union wage gap estimates with match bias removed are presented for 1973 2001 estimates for recent years are biased downward 5 percentage points bias in gap estimates accompanying other non match criteria public sector industry etc is examined

saving risk sharing and preferences for risk saving decisions are made jointly by household members who generally earn risky incomes consequently to interpret saving patterns it is crucial to analyze the relationship between intrahousehold risk sharing and intertemporal choices to that end in this paper the household is characterized as a group of agents with possibly heterogeneous preferences making efficient decisions two results are obtained first it is shown that risk sharing can increase the amount saved by the household second i find that an increase in risk aversion and prudence of an individual member can reduce household risk aversion and prudence these results are consistent with the empirical evidence collected using the hrs

the economics of health and health care what have we learned what have i learned victor fuchs and i have been talking with each other about the economics of health and health care since we met nearly 30 years ago i was pleased therefore when he asked me to organize this session of his american economic association annual meeting but then rather dismayed by his suggestion that as one of the papers in the session i offer an overview of what i have learned about the subject during those 30 years as a profession we have indeed learned a great deal in these three decades the rapid growth of health care spending that doubled its gdp share to one seventh of the economy and the 1966 medicare and medicaid programs that have made federal health care spending exceed the combined total of all domestic discretionary federal outlays have attracted a generation of researchers to a subject that had been largely neglected by economists before the 1960 s 1 econometric research and conceptual developments have been mutually reinforcing helped by advances in econometric theory and by the government s creation of a rich array of detailed data although there remains substantial controversy about many issues in this field as in most other parts of economics there is no doubt that anyone setting out to teach a course on health economics or to do policy analysis in this area would start from a very different base today than 30 years ago

endogenous timing in general rent seeking and conflict models we examine simultaneous versus sequential choice of effort in a two player contest the timing of moves determined in a preplay stage prior to the contest subgame as well as the value of the prize is allowed to be endogenous contrary to endogenous timing models with an exogenously fixed prize the present paper finds the following 1 players may decide to choose their effort simultaneously in the subgame perfect equilibrium spe of the extended game 2 the spe does not need to be unique in particular there is no unique spe with sequential moves if the direct costs of effort are zero 3 symmetry among players does not rule out incentives for precommitment to effort locally away from the cournot nash level 4 finally there may be no correlation between win probability and strategic incentives in our framework a finding most central in the analysis of fixed prize contests

equilibrium structure in an economic model of conflict four different types of equilibrium are possible within a two player model of society where only armed self enforcement of property rights is possible the main underlying parameters are the total resource endowment and the initial distribution of this endowment between the players the parameter space is partitioned into regions in which the respective types of equilibrium occur the equilibrium types involve positive arms expenditure by respectively neither player the richer player and both players the latter case involves a sub type in which the poorer player s entire endowment is expended on arms jel d30 d72 d74