did bank distress stifle innovation during the great depression we find a negative relationship between bank distress and the level quality and trajectory of firm level innovation during the great depression particularly for r d firms operating in capital intensive industries however we also show that because a sufficient number of r d intensive firms were located in counties with lower levels of bank distress or were operating in less capital intensive industries the negative effects were mitigated in aggregate although depression era bank distress was associated with the stifling of innovation our results also help to explain why technological development was still robust following one of the largest shocks in the history of the u s banking system

inequalities and the individualization of wealth abstract we document the individualization of wealth in france between 1998 and 2015 using precise survey data on the property titles of assets it is characterized by an increase in the share of wealth which is individualized by spouses vs jointly owned and by an increase in the share of wealth held by singles we show that the usual measures of wealth inequality which allocate the same share of household wealth to each spouse or partner overestimate the share of wealth held by women this results in an underestimation of both the level and the growth of a wealth inequality between individuals and b the gender wealth gap we argue for better consideration of the ownership status and intra household distribution of wealth in the measurement of wealth inequality

optimal growth with many consumers abstract a method is described for constructing all pareto optimal allocations for a dynamic economy with many heterogeneous consumers under certainty in which both the technology and consumer preferences are recursive but preferences need not be additively separable over time optimal perfect foresight competitive equilibrium allocations are obtained through the study of a dynamic program for an economy with one consumption good sufficient conditions are given for the existence of a unique interior stationary distribution of consumption and wealth for a two person exchange economy sufficient conditions are given for the global asymptotic stability of the unique interior stationary point

a two person dynamic equilibrium under ambiguity this paper describes a pure exchange continuous time economy with two heterogeneous agents and complete markets a novel feature of the economy is that agents perceive some security returns as ambiguous in the sense often attributed to frank knight the equilibrium is described completely in closed form after identifying agents as countries the model is applied to address the consumption home bias and equity home bias puzzles 2002 elsevier science b v all rights reserved jel classi cation d81 g11 g12 g15

the supply of charity services by nonprofit hospitals motives and market structure this article studies provision of charity care by private nonprofit hospitals we demonstrate that in the absence of large positive income effects on charity care supply convex preferences for the nonprofit hospital imply crowding out by other private or government hospitals extending our model to include impure altruism rivalry provides a possible explanation for the previously reported empirical result that both crowding out and income effects on indigent care supply are often weak or insignificant empirical analysis of data for hospitals in maryland provides evidence of rivalry on the supply of charity care

cut to the bone hospital takeovers and nurse employment contracts the authors examine changes in the wages employment and effort of nurses in california hospitals following takeovers by large chains in the 1990s the market for nurses has been described as a classic monopsony so that one might expect increases in firm market power to be associated with declines in wages however a basic contracting model predicts effects on effort rather than on wages which is what this analysis finds nurses experienced few declines in wages following takeovers but did see increases in the number of patients per nurse the measure of effort used here the authors show that their results are also consistent with an extended version of the monopsony model that considers effort and allows for revenue shifts following a takeover finally they find that these changes were similar in the largest for profit and non profit chains suggesting that market forces are more important than institutional form

consensus consumer and intertemporal asset pricing with heterogeneous beliefs le fichier attache est egalement edite dans les cahier de la chaire les particuliers face aux risques de l institut de finance de dauphine cahier n 7 mars 2007

estimating top income and wealth shares sensitivity to data and methods abstract administrative income tax data indicate that u s top income and wealth shares are both substantial and larger than shares observed in household surveys however these estimates are sensitive to the unit of analysis the income concept measured in tax records and in the case of wealth to assumptions about the correlation between income and wealth we constrain a household survey the survey of consumer finances to be conceptually comparable to tax records and are able to reconcile the much of the difference between the survey and administrative estimates wealth estimates from administrative income tax data are sensitive to model parameters

income inequality equities household debt and interest rates evidence from a century of data abstract using philippon s 2015 recently published historical household debt data this paper uses diebold and yilmaz s 2012 generalized variance decompositions and generalized impulse responses to understand the relationship between interest rates the stock market household debt and the distribution of income in the u s the results indicate that increases in the stock market and household debt increase income inequality moreover the relationship between the interest rate and income inequality is found to be negative and statistically significant we interpret our results as suggesting that high income earners derive a larger portion of their income from interest rate sensitive assets

wealth taxation and wealth accumulation theory and evidence from denmark using administrative wealth records from denmark we study the effects of wealth taxes on wealth accumulation denmark used to impose one of the world s highest marginal tax rates on wealth but this tax was greatly reduced starting in 1989 and later abolished due to the specific design of the wealth tax the 1989 reform provides a compelling quasi experiment for understanding behavioral responses among the wealthiest segments of the population we find clear reduced form effects of wealth taxes in the short and medium run with larger effects on the very wealthy than on the moderately wealthy we develop a simple life cycle model with utility of residual wealth bequests allowing us to interpret the evidence in terms of structural primitives we calibrate the model to the quasi experimental moments and simulate the model forward to estimate the long run effect of wealth taxes on wealth accumulation our simulations show that the long run elasticity of taxable wealth with respect to the net of tax return is sizable at the top of the distribution

tax evasion and inequality this paper attempts to estimate the size and distribution of tax evasion in rich countries we combine random audits the key source used to study tax evasion so far with new micro data leaked from large offshore financial institutions hsbc switzerland swiss leaks and mossack fonseca panama papers matched to population wide wealth records in norway sweden and denmark we find that tax evasion rises sharply with wealth a phenomenon random audits fail to capture on average about 3 of personal taxes are evaded in scandinavia but this figure rises to close to 30 in the top 0 01 of the wealth distribution a group that includes households with more than 45 million in net wealth a simple model of the supply of tax evasion services can explain why evasion rises steeply with wealth taking tax evasion into account increases the rise in inequality seen in tax data since the 1970s markedly highlighting the need to move beyond tax data to capture income and wealth at the top even in countries where tax compliance is generally high we also find that after reducing tax evasion by using tax amnesties tax evaders do not legally avoid taxes more this result suggests that fighting tax evasion can be an effective way to collect more tax revenue from the very wealthy

corruption in public service delivery an experimental analysis abstract to improve our understanding of corruption in service delivery we use a newly designed game that allows us to investigate the effects of the institutional environment on the behavior of service providers and their monitors we focus on the effect of four different factors whether monitors are accountable to the service recipients the degree of observability of service providers effort the providers wages and the providers professional norms in accordance with theory we find that service providers perform better when monitors are elected by service recipients and when their effort is more easily observed however there is only weak evidence that service providers perform better when paid more monitors are more vigilant when elected and when service providers are paid more playing the game with ethiopian nursing students we also find that those with greater exposure to the ethiopian public health sector perform less well either as provider or as monitor when the experiment is framed as a public health provision scenario suggesting that experience and norms affect behavior

a micro economic perspective on manager selection in nonprofit organizations abstract this paper recognizes that individuals working in the nonprofit sector can have different motives and investigates which type of manager nonprofit organizations should best employ it first considers a situation in which the manager is allowed to attract only one employee and later extends the analysis to a situation in which up to three employees can be employed analyses mark the importance of a strong commitment to the organization s mission and caution for both a strong self interest and a strong devotion to the well being of the clients managers with a moderate interest in their own objectives can nevertheless be valuable to the organization the paper also marks why managers should avoid similar to me biases in the selection process and investigates the effects of an increased work pressure on the behavior of the managers and on the attainment of the organizational goals

capital is back wealth income ratios in rich countries 1700 2010 how do aggregate wealth to income ratios evolve in the long run and why we address this question using 1970 2010 national balance sheets recently compiled in the top eight developed economies for the united states united kingdom germany and france we are able to extend our analysis as far back as 1700 we find in every country a gradual rise of wealth income ratios in recent decades from about 200 300 in 1970 to 400 600 in 2010 in effect today s ratios appear to be returning to the high values observed in europe in the eighteenth and nineteenth centuries 600 700 this can be explained by a long run asset price recovery itself driven by changes in capital policies since the world wars and by the slowdown of productivity and population growth in line with the s g harrod domar solow formula that is for a given net saving

structure of pareto optima when agents have stochastic recursive preferences abstract a recursive method is given for constructing all pareto optimal allocations for a dynamic economy under markov certainty in which consumer preferences are recursive journal of economic literature classification numbers c60 d50

enter at your own risk hmo participation and enrollment in the medicare risk market we examine hmo participation and enrollment in the medicare risk market for the years 1990 to 1995 we develop a profit maximization model of hmo behavior which explicitly considers potential linkages between an hmo s production decision in the commercial enrollee market and its participation and production decisions in the medicare risk market our results suggest that the payment rate is a primary determinant of hmo participation while the price of a supplemental medicare insurance policy positively affects hmo medicare enrollment we also find empirical support for the existence of complementarities in the joint production of an hmo s commercial and medicare products

a welfare criterion for models with distorted beliefs this paper proposes a welfare criterion for economies in which agents have heterogeneously distorted beliefs instead of taking a stand on whose belief is correct our criterion asserts an allocation to be belief neutral ine cient if it is ine cient under any convex combination of agents beliefs while this criterion gives an incomplete ranking of social allocations it can identify negative sum speculation in a broad range of prominent models with distorted beliefs

the missing wealth of nations are europe and the u s net debtors or net creditors this paper shows that official statistics substantially underestimate the net foreign asset positions of rich countries because they fail to capture most of the assets held by households in offshore tax havens drawing on systematic anomalies in portfolio investment positions and a unique swiss dataset i find that 8 of the global financial wealth of households is held in tax havens 6 of which goes unrecorded on the basis of plausible assumptions accounting for unrecorded assets turns the eurozone officially the world s second largest net debtor into a net creditor it also reduces the u s net debt significantly the results shed new light on global imbalances and challenge the widespread view that after a decade of poor to rich capital flows external assets are now in poor countries and debts in rich countries i provide concrete proposals to improve international investment statistics

taxing across borders tracking personal wealth and corporate profits globalization is making it increasingly easy for corporations to shift profits to low tax countries modern technology has also made it simpler for wealthy individuals to move funds to undeclared bank accounts in offshore tax havens both issues have featured prominently in the news and global economic debates since the financial crisis but the arguments tend to be based on relatively little empirical evidence measuring the costs of tax havens to foreign governments is fraught with difficulties however balance of payments data and corporate filings show that us companies are shifting profits to bermuda luxembourg and similar countries on a large and growing scale about 20 percent of all us corporate profits are now booked in such havens a tenfold increase since the 1980s this profit shifting is typically done within the letter of the law and thus would be best described as tax avoidance rather than fraud i attempt to quantify its cost for government coffers by taking a fresh look at the most recent macroeconomic evidence and combining it in a systematic manner over the last 15 years the effective corporate tax rate of us companies has declined from 30 to 20 percent and about two thirds of this decline can be attributed to increased profit shifting to low tax jurisdictions wealthy individuals too use tax havens sometimes legally to benefit from banking services not available in their home country and sometimes illegally to evade taxes a number of changes have sought with some success to curb that form of tax evasion over the last years yet the available evidence from switzerland and

non profit cost adjusting with quality as a private good nonprofit firms that produce multiple outputs may lower service intensity for one patient group in response to lower reimbursements for another group this is termed cost adjusting behaviour cost adjusting implies a serious welfare transfer the results of this analysis suggest that the potential for this welfare transfer exists however the ability of a firm to exploit this welfare transfer depends largely on the demand conditions present in the market an empirical analysis finds evidence that nonprofit hospitals in washington state do practise cost adjusting

second opinions and price competition inefficiency in the market for expert advice we consider a market in which an expert must exert costly but unobservable effort to identify the service that meets the consumer s need in our model experts offer competing contracts and the consumer may gather multiple opinions we explore the incentives that a competitive sampling of prices and opinions provides for experts to exert effort and find that there is a tension between price competition and the equilibrium effort in particular the equilibrium fails to realize the second best welfare optimum an intervention that limits price competition via price control increases welfare

a risk centric model of demand recessions and speculation we provide a continuous time risk centric representation of the new keynesian model which we use to analyze the interactions between asset prices financial speculation and macro economic outcomes when output is determined by aggregate demand in principle interest rate policy is highly effective in dealing with shocks to asset valuations however in practice monetary policy faces a wide range of constraints if these constraints are severe a decline in risky asset valuations generates a demand recession this reduces earnings and generates a negative feedback loop between asset prices and aggregate demand in the recession phase average beliefs matter not only because they affect asset valuations but also because they determine the strength of the amplification mechanism in the ex ante boom phase belief disagreements or heterogeneous asset valuations matter because they induce investors to speculate this speculation exacerbates the crash by reducing high valuation investors wealth when the economy transitions to recession which depresses wealth weighted average beliefs macroprudential policy that restricts speculation in the boom can pareto improve welfare by increasing asset prices and aggregate demand in the recession

procurement via sequential search numerous design and repair services are nonstandard and have to be tailored to the needs of the individual buyers prospective sellers have to make preliminary efforts in order to come up with a plan and buyers often consult a number of sellers before making a purchase the literature on procurement studies such situations for the case of a large buyer who can commit to a procurement mechanism the present paper considers the case of a small buyer who cannot commit to a mechanism it develops a simple sequential procurement model and investigates its equilibria and welfare optima the main qualitative conclusion concerns the inherent inefficiency of the equilibria the price competition results in too low consultation fees which induce overly intense search by buyers which in turn erodes sellers effort incentives

reducing global environmental inequality determining regional quotas for environmental burdens through systems optimisation abstract reducing inequality is essential for sustainable development yet our understanding of its many dimensions and driving forces is still limited here we study the global distribution of 25 environmental burdens encompassing natural resources water materials and land use and air emissions all related to activities underpinning human welfare we find large disparities in inequality levels across burdens and a general yet slow decline in inequality in the period 1995 2009 explained mostly by the faster economic growth of emerging economies acknowledging that allocation issues may hamper greater equality we propose a framework for an optimal allocation of quotas for environmental burdens respecting a maximum allowable inequality limit while ensuring a safe operation within the earth s ecological capacity our results shed light on the global distribution of environmental burdens and provide a roadmap for achieving a greater environmental equality using systems optimisation it is hoped that this work will trigger further discussion on the need to address environmental inequality currently missing in the sustainable development goals and open up new research avenues on the use of whole systems approaches in solving global sustainability problems

balancing incentives in the compensation contracts of nonprofit hospital ceos abstract given the considerable insight into corporate governance achieved through studies of executive compensation in proprietary firms it is surprising that executive contracting in nonprofit organizations remains largely unexplored in this paper we use the multitask principal agent model of holmstrom and milgrom the journal of law economics and organization 7 1991 suppl 24 to argue that nonprofit hospitals represent an optimal response to information asymmetries between managers and boards for a board with multidimensional objectives the agency problem is getting top executives to distribute their efforts across all dimensions of the hospital s mission the nonprofit form is preferred because the absence of high powered incentives such as share ownership reduces executives incentives to place undue emphasis on improving financial performance at the expense of important but less observable tasks using newly available compensation data we test the model by comparing the conditional distributions of earnings for industrial and nonprofit hospital ceos in ontario our best estimates are that ceos in publicly traded firms earn twice as much on average as those in similarly sized nonprofit hospitals but bear roughly eight times the income variance estimates of the associated degree of risk aversion are well within conventional bounds and are consistent with the trade off between insurance and incentives predicted by the theory

wealth dynamics in a bond economy with heterogeneous beliefs two types of agents have diverse beliefs about the law of motion for an exogenous endowment one knows the true process and the other learns about it via bayes theorem financial market structure affects the dynamics of the wealth distribution when markets are complete the learning agent loses wealth as in blume and easley 2006 the absence of markets for some arrow securities alters the direction in which wealth is transferred when the only traded asset is a risk free bond the learning agent accumulates wealth both agents survive and the more knowledgeable agent is driven to his debt limit

the institutional foundations of religious politics evidence from indonesia this paper explores the foundations of religious influence in politics and society we show that an important islamic institution fostered the entrenchment of islamism at a critical juncture in indonesia the world s largest muslim country in the early 1960s rural elites transferred large amounts of land into waqf inalienable charitable trusts in islamic law to avoid expropriation by the state regions facing a greater threat of expropriation exhibit more prevalent waqf land and islamic institutions endowed as such including mosques and religious schools these endowments provided conservative forces with the capital needed to promote islamist ideology and mobilize against the secular state we identify lasting effects of the transfers on the size of the religious sector electoral support for islamist parties and the adoption of local sharia laws these effects are shaped by greater demand for religion in government but not by greater piety among the electorate waqf assets also impose costs on the local economy particularly in agriculture where these endowments are associated with lower productivity overall our findings shed new light on the origins and consequences of islamism

the effects of asset specificity on maintenance financial performance an empirical application of transaction cost theory to the medical device maintenance field abstract this study uses multivariate regression analysis to examine the effects of asset specificity on the financial performance of both external and internal governance structures for medical device maintenance and investigates how the financial performance of external governance structures differs depending on whether a hospital is private or public the hypotheses were tested using information on 764 medical devices and 62 maintenance service providers resulting in 1403 maintenance transactions as such our data sample is significantly larger than those used in previous studies in this area the results empirically support our core theoretical argument that governance financial performance is influenced by assets specificity

income inequality in the united states 1913 1998 this paper presents new homogeneous series on top shares of income and wages from 1913 to 1998 in the united states using individual tax returns data top income and wages shares display a u shaped pattern over the century our series suggest that the large shocks that capital owners experienced during the great depression and world war ii have had a permanent effect on top capital incomes we argue that steep progressive income and estate taxation may have prevented large fortunes from fully recovering from these shocks top wage shares were flat before world war ii dropped precipitously during the war and did not start to recover before the late 1960s but are now higher than before world war ii as a result the working rich have replaced the rentiers at the top of the income distribution

bequest and tax planning evidence from estate tax returns i study bequest and wealth accumulation behavior of the wealthy subject to the estate tax shortly before death the onset of a terminal illness leads to a very significant reduction in the value of estates reported on tax returns fifteen to twenty percent with illness lasting months to years and about five to ten percent in the case of illness reported as lasting days to weeks i provide evidence suggesting that these findings cannot be explained by real shocks to net worth such as medical expenses or lost income but instead reflect deathbed estate planning the results suggest that wealthy individuals actively care about disposition of their estates but that this preference is dominated by the desire to hold on to their wealth while alive

do americans want to tax wealth evidence from online surveys abstract a vast theoretical literature in public finance has studied the desirability of capital taxation this discussion largely ignores the political feasibility of taxing wealth we provide to our knowledge the first investigation of individuals preferences over jointly taxing income and wealth we provide subjects with a set of hypothetical individuals incomes and wealth and elicit subjects preferred absolute tax bill for each individual our method allows us to unobtrusively map both income earned and accumulated wealth into desired tax levels our regression results yield roughly linear desired tax rates on income of about 14 respondents suggested tax rates indicate positive desired wealth taxation when we distinguish between sources of wealth we find that in line with recent theoretical arguments subjects implied tax rate on wealth is 3 when the source of wealth is inheritance far higher than the 0 8 rate when wealth is from savings textual analysis of respondents justifications for their tax rates imply limited concern for the elasticity of tax bases with respect to net of tax rates

model misspecification and underdiversification in this paper we study intertemporal portfolio choice when an investor accounts explicitly for model misspecification we develop a framework that allows for ambiguity about not just the joint distribution of returns for all stocks in the portfolio but also for different levels of ambiguity for the marginal distribution of returns for any subset of these stocks we find that when the overall ambiguity about the joint distribution of returns is high then small differences in ambiguity for the marginal return distribution will result in a portfolio that is significantly underdiversified relative to the standard mean variance portfolio

the value of registry data for consumption analysis an application to health shocks abstract this paper measures consumption expenditures using registry data on income and asset holdings in sweden we show how a registry based measure complements traditional survey measures of consumption and can alleviate some critical limitations we describe the construction of our measure which builds on prior work and exploits the identity coming from the household budget constraint between consumption expenditures and income net of savings we demonstrate the value of the registry based measure to study consumption responses to shocks also relative to surveyed consumption in our application to health shocks we find that swedish household experience permanent earning drops but generous social transfers provide substantial consumption smoothing we document important heterogeneity in consumption responses and the limited role for private means

the changing effects of competition on non profit and for profit hospital pricing behavior abstract has the nature of hospital competition changed from a medical arms race in which hospitals compete for patients by offering their doctors high quality services to a price war for the patients of payors this paper uses time series cross sectional methods on california hospital discharge data from 1986 1994 to show the association of hospital prices with measures of market concentration changed steadily over this period with prices now higher in less competitive areas even for non profit hospitals regression results are used to simulate the price impact of hypothetical hospital mergers

the global stability of efficient intertemporal allocations this paper describes a continuous time model of an economy with finitely many infinitely lived consumers and a finite number of capital goods two objectives are achieved first recursive nonadditive utility functionals are formulated and analyzed second these preference functionals are applied to analyze the nature of efficient allocations in a dynamic economy two classes of global turnpike propositions are proven which provide the basis for a model of the long run distribution of wealth these propositions also provide new perspective regarding existing stability literature based on additive utilities copyright 1987 by the econometric society

what do we know about evolution of top wealth shares in the united states in piketty s 2014 prominent book capital in the twenty first century he argues that the concentration of wealth may become increasingly extreme in the future as piketty reminds us the group of rentiers people living off accumulated capital has been historically large and politically and socially influential because so much of large fortunes end up being inherited the current concentration of wealth is bound to predict at least weakly and perhaps strongly how important rentiers will be regardless of whether one buys into depictions such as the rentier enemy of democracy p 422 the extent to which the well off are going to rely on work versus rely on the returns to their wealth in the future is clearly important for assessing the extent to which a society will view itself as in some way a meritocracy given that the us economy has experienced rising inequality in its income and earning distributions for example piketty and saez 2003 or see the symposium on the top 1 percent in the summer 2013 issue of this journal one would expect that the distribution of wealth would follow a similar path however available evidence on this topic is much more scant and conflicting than that on income and earnings in fact when piketty 2014 reports direct estimates of wealth concentration for france the united kingdom sweden and the united states in chapter 10 of his book he finds as yet little evidence of dramatic increase in wealth concentration in any of these countries

political authority expertise and government bureaucracies by applying the revelation principle we focus on how a sponsor who possesses political authority could minimise the efficiency losses when bureaucrats are experts that is when they control information about the true costs of public services production our results come in striking contrast to those in the literature on bureaucracies and public procurement in a two types setting and in the absence of monitoring and control mechanisms we find that the agency is productively efficient under certain conditions the agency is also allocatively efficient while under others the low cost bureau oversupplies and the high cost agency undersupplies its output

inheritance and wealth inequality evidence from population registers we use new population wide register data on inheritances and wealth in sweden to estimate the causal impact of inheritances on wealth inequality we find that inheritances reduce relative wealth inequality e g the gini coefficient falls by 5 10 percent but that absolute dispersion increases examining different parts of the wealth distribution we find that the top decile s wealth share decreases substantially whereas the wealth share of the bottom half increases from a negative to a positive share in essence wealthier heirs inherit larger amounts but less wealthy heirs inherit more relative to their pre inheritance wealth we also find that post inheritance behavioral adjustments mitigate the equalizing effect of inheritances because less wealthy heirs consume larger shares of their inheritances moreover we find that the swedish inheritance tax reduced the equalizing inheritance effect but that the redistribution of tax revenues could reverse this result finally we show that inheritances increase wealth mobility

a simpler theory of optimal capital taxation abstract this paper develops a theory of optimal capital taxation that expresses optimal tax formulas in sufficient statistics we first consider a simple model with utility functions linear in consumption and featuring heterogeneous utility for wealth in this case there are no transitional dynamics the steady state is reached immediately and has finite elasticities of capital with respect to the net of tax rate this allows for a tractable optimal tax analysis with formulas expressed in terms of empirical elasticities and social preferences that can address many important policy questions these formulas can easily be taken to the data to simulate optimal taxes which we do using u s tax return data on labor and capital incomes second we show how these results can be extended to the case with concave utility for consumption the same types of formulas carry over by appropriately defining elasticities we show that one can recover all the results from the simpler model using a new and non standard steady state approach that respects individual preferences even with a fully general utility function

multi product costs and standby capacity derived from queuing theory the case of belgian hospitals empirical hospital cost function studies can be divided into two categories studies estimating traditional multi product cost functions and studies including demand uncertainty assuming that hospitals provide standby capacity to cope with uncertain demand and stressing that the relationship between the uncertain demand excess capacity and costs should be investigated most studies include the inverse of the occupancy rate in a relatively basic cost function the first contribution of this paper is to incorporate an indicator of reserve capacity into a genuine multi product cost function the second contribution is to propose an alternative indicator to proxy the reserve margin the often used occupancy rate has an important shortcoming the same occupancy rate can hide different turnaway probabilities and waiting times obscuring the true degree of reservation quality since turnaway probabilities and waiting times are typical queuing theory indicators an indicator for average waiting time derived

semi nonparametric estimation of consumer search costs this paper studies the estimation of the distribution of non sequential search costs we show that the search cost distribution is identified by combining data from multiple markets with common search technology but varying consumer valuations firms costs and numbers of competitors to exploit such data optimally we provide a new method based on semi nonparametric estimation we apply our method to a dataset of online prices for memory chips and find that the search cost density is essentially bimodal such that a large fraction of consumers searches very little whereas a smaller fraction searches a relatively large number of stores copyright c 2012 john wiley sons ltd

risk uncertainty and the dynamics of inequality abstract the dynamics of wealth inequality are studied in a continuous time blanchard yaari model investment returns are idiosyncratic and subject to knightian uncertainty in response agents formulate robust portfolio policies these policies are nonhomothetic wealthy agents invest a higher fraction of their wealth in uncertain assets yielding higher mean returns this produces a feedback mechanism that amplifies inequality it also produces an accelerated rate of convergence which helps resolve a puzzle recently identified by gabaix et al 2016 an empirically plausible increase in uncertainty can account for about half of the recent increase in top wealth shares

heterogeneity in returns to wealth and the measurement of wealth inequality lacking a long time series on the assets of the very wealthy saez and zucman 2015 use us tax records to obtain estimates of wealth holdings by capitalizing asset income from tax returns they document marked upward trends in wealth concentration we use data on tax returns and actual wealth holdings from tax records for the whole norwegian population to test the robustness of the methodology we document that measures of wealth based on the capitalization approach can lead to misleading conclusions about the level and the dynamics of wealth inequality if returns are heterogeneous and even moderately correlated with wealth

competition among hospitals the traditional view of hospital competition has posited that hospitals compete primarily along quality dimensions in the form of fancy equipment to attract admitting physicians and pleasant surroundings to entice patients price competition among hospitals is thought to be non existent this paper estimates the effects of various hospital market characteristics on hospital prices and expenses in an attempt to determine the form of hospital competition the results suggest that both price and quality competition are greater in markets that are less concentrated although the net effect of the two on prices is insignificant it appears therefore that despite important distortions hospital markets are not immune to standard competitive forces

top incomes in the long run of history a recent literature has constructed top income shares time series over the long run for more than twenty countries using income tax statistics top incomes represent a small share of the population but a very significant share of total income and total taxes paid hence aggregate economic growth per capita and gini inequality indexes are sensitive to excluding or including top incomes we discuss the estimation methods and issues that arise when constructing top income share series including income definition and comparability over time and across countries tax avoidance and tax evasion we provide a summary of the key empirical findings most countries experience a dramatic drop in top income shares in the first part of the twentieth century in general due to shocks to top capital incomes during the wars and depression shocks top income shares do not recover in the immediate postwar decades however over the last thirty years top income shares have increased substantially in english speaking countries and in india and china but not in continental european countries or japan this increase is due in part to an unprecedented surge in top wage incomes as a result wage income comprises a larger fraction of top incomes than in the past finally we discuss the theoretical and empirical models that have been proposed to account for the facts and the main questions that remain open

collateral constraints and asset prices abstract we study the effects of collateral constraints in an economy populated by investors with nonpledgeable labor incomes and heterogeneous preferences and beliefs we show that these constraints inflate stock prices and generate spikes and crashes in price dividend ratios and volatilities clustering of volatilities and leverage cycles they also lead to substantial decreases in interest rates and increases in sharpe ratios when investors are anxious about hitting constraints due to production crises in the economy furthermore stock prices have large collateral premiums over nonpledgeable incomes we derive asset prices and stationary distributions of the investors consumption shares in closed form

taxing top earners a human capital perspective we assess the consequences of substantially increasing the marginal tax rate on u s top earners using a human capital model we nd that 1 the peak of the model laer curve occurs at a 52 percent top tax rate 2 if human capital were exogenous then the top of the laer curve would occur at a 66 percent top tax rate and 3 applying the theory and methods that diamond and saez 2011 use to provide quantitative guidance for setting the top tax rate to model data produces a tax rate that substantially exceeds 52 percent

market selection with idiosyncratic uncertainty abstract i analyze the survival probabilities of different types of agents in a general equilibrium model with disagreement over idiosyncratic uncertainties i find that such biases create a separation between individual and group level survival even when the survival probability of a single irrational agent tends to zero these agents may still succeed as a whole effectively the irrational agent population can survive due to a vanishingly small group of increasingly rich agents disagreement over idiosyncratic uncertainties distorts savings decisions and interest rates but idiosyncratic risks are not priced simulations confirm that the limiting results are relevant when the population of irrational agents is large

survival and long run dynamics with heterogeneous beliefs under recursive preferences i analytically characterize the long run behavior of an economy with two types of agents who differ in their beliefs and are endowed with homothetic recursive preferences agents with more incorrec

women wealth and mobility using estate tax returns data we observe that the share of women among the very wealthy in the united states peaked in the late 1960s at nearly one half and then declined to one third we argue that this pattern reflects changes in the importance of dynastic wealth with the share of women proxying for inher ited wealth if so wealth mobility decreased until the 1970s and rose thereafter such an interpretation is consistent with technological change driving long term trends in mobility and inequality as well as the recent divergence between top wealth and top income shares documented elsewhere jel d31 j16 j62 033 the extent of and changes in intergenerational mobility of wealth are central to understanding dynamics of wealth inequality but are hard to measure in this paper we argue that the share of women among the wealthiest americans can be used as a proxy for the importance of inherited rela tive to self made wealth this approach assumes that women tend to inherit rather than make great fortunes if so a higher share of women among the wealthy would reflect a rise in inherited wealth at the top and thus lower wealth mobility conversely higher wealth mobility where self made wealth replaces inherited wealth would result in more men at the top of the wealth distribution judged by this proxy and corroborated by various data sources wealth mobility decreased in the period 1925 1969 and increased thereafter such a pattern is consistent with an important role for technological change in shaping the wealth distribution and can provide an explanation for why wealth concentra tion has remained stable despite increasing income concentration in the last three decades over the past century the share of women among the very wealthy followed an inverse u pattern peaking in the late 1960s according to estate tax returns in 1925 one quarter of the wealthiest 0 01 percent were women this fraction rose rapidly through world war ii wwii and then more slowly to peak in 1969 when women neared parity with men since then the decline has been marked by 2000 women s share had fallen to one third its prewar level while the rise was evident among all wealth groups in the top 1 percent of the wealth distribution the decline was confined to the very top figure ia graphs the share of women for four different groups in the top 1 percent among decedents by year figure ib does the same for the living population with the help of estate multipliers a method that treats death as a random sampling device and uses mortality rates by age and gender to infer the distribution of wealth among the living as described in the data appendix while the rise in the share of women among the wealthy until the 1960s could reflect improve ments in women s economic status labor market gains work against the recent decline for instance since the 1970s the share of women among top earners top 0 1 percent has risen by

behavioural differences among hospitals it is ownership or location by about 1988 the consensus among leading health economists was that no meaningful differences existed among hospitals of differences owernership form and this position was embraced by the antitrust division of the us department of justice but behavioural differences among hospitals of different among hospitals of different owernership has continued to be a matter of both academic and judicial interest recent empirical studies have concluded that real differences do exist while many earlier studies reached the opposite conclusion this contradiction in finding over time as competition intensified is exactly opposite to what expense preference theory would predict we examine this apparent paradox using a very general test of behavioural differences by hospital ownership we find that the omission of location specific variables can lead to biased estimates of ownership effects and that no significant behavioural differences exist among private california hospitals in 1986 90 when this source of o

how progressive is the u s federal tax system a historical and international perspective this paper provides estimates of federal tax rates by income groups in the united states since 1960 with special emphasis on very top income groups we include individual and corporate income taxes payroll taxes and estate and gift taxes the progressivity of the u s federal tax system at the top of the income distribution has declined dramatically since the 1960s this dramatic drop in progressivity is due primarily to a drop in corporate taxes and in estate and gift taxes combined with a sharp change in the composition of top incomes away from capital income and toward labor income the sharp drop in statutory top marginal individual income tax rates has contributed only moderately to the decline in tax progressivity international comparisons confirm that is it critical to take into account other taxes than the individual income tax to properly assess the extent of overall tax progressivity both for time trends and for cross country comparisons the pattern for the united kingdom is similar to the u s pattern france had less progressive taxes than the united states or the united kingdom in 1970 but has experienced an increase in tax progressivity and has now a more progressive tax system than the united states or the united kingdom

nonprofit organizations revised theory and new evidence it is apparent that comprehensive analysis requires at least some application of elementary axioms from the economics of politics or public choice one of these implies that because of asymmetric costs of political participation some suppliers of goods and services usually do better for themselves out of lobbying and organization than do others moreover for the same reason dispersed consumers would appear to do worst of all legislation and policy on nonprofit organization seems to be one of many examples of this phenomenon in this case however the supply side lobbyists are aided by an ancient and deep seated popular prejudice against profit making the man in the street has apparently not yet fully grasped the point that so long as competition is possible the profit inducement acts as a continued incentive to minimize costs constantly and indiscriminately to condone pejorative language against profits is to create a climate that results in legislation giving unprecedented new profit opportunities via not for profit organizations and such increased rewards can result in social harm rather than social gain granted there may be cases that justify nonprofits in some circumstances preston 1988 the fact remains that the costs of separating and monitoring these cases at least at federal level would appear to be overwhelming the nonprofit system that is usually advocated calls for a federal general tax exemption yet the value of this advantage is the same to all nonprofit firms whereas we need to know the extent of the particular social benefits generated in each particular case so as to give tailor made government assistance and since in very many instances the social benefits are negative the government s shotgun approach appears highly questionable

the dynamics of inequality the past forty years have seen a rapid rise in top income inequality in the united states while there is a large number of existing theories of the pareto tail of the long run income distributions almost none of these address the fast rise in top inequality observed in the data we show that standard theories which build on a random growth mechanism generate transition dynamics that are too slow relative to those observed in the data we then suggest two parsimonious deviations from the canonical model that can explain such changes scale dependence that may arise from changes in skill prices and type dependence that is the presence of some high growth types these deviations are consistent with theories in which the increase in top income inequality is driven by the rise of superstar entrepreneurs or managers

the dynamics of risk sensitive allocations abstract this paper describes pareto optimal allocations when agents have risk sensitive preferences as formulated by hansen and sargent ieee trans automat control 40 5 1995 968 971 necessary and sufficient conditions are given for the existence and stability of steady states at which pareto weights are time invariant when all agents are risk sensitive with the same power reward function there is a unique interior steady state which is stable when the power is positive and unstable when the power is negative when there is at least one agent with time additive preferences eventually all risk sensitive agents have zero pareto weights

practice what you preach microfinance business models and operational efficiency the microfinance sector has room for pure for profit microfinance institutions mfis non profit organizations and social for profit firms that aim to pursue a double bottom line depending on their business model these institutions target different types of borrowers change the size of their loans and adjust their loan pricing we introduce a simple approach that accommodates a wide range of business models and allows us to estimate the operational efficiency of mfis our empirical results show that mfis with a high depth of outreach are most efficient resulting in higher levels of outreach and profits for the same input mix

global inequality dynamics new findings from wid world this paper presents new findings on global inequality dynamics from the world wealth and income database wid world with particular emphasis on the contrast between the trends observed in the united states china france and the united kingdom we observe rising top income and wealth shares in nearly all countries in recent decades but the magnitude of the increase varies substantially thereby suggesting that different country specific policies and institutions matter considerably long run wealth inequality dynamics appear to be highly unstable we stress the need for more democratic transparency on income and wealth dynamics and better access to administrative and financial data

conditioning and aggregation of preferences this paper develops a general framework for modeling choice under uncertainty that extends subjective expected utility to include nonseparabilities state dependence and the effect of subjective or ill defined consequences this is accomplished by not including consequences among the formal primitives instead the effect of consequences is modeled indirectly through conditional preferences over acts the main results concern the aggregation of conditional utilities to form an unconditional utility including the case of additive aggregation applications obtained by further specifying the structure of acts and conditional preferences include disappointment regret and the subjective value of information

about capital in the twenty first century in this article i present three key facts about income and wealth inequality in the long run emerging from my book capital in the twenty first century and seek to sharpen and refocus the discussion about those trends in particular i clarify the role played by r g in my analysis of wealth inequality i also discuss some of the implications for optimal taxation and the relation between capital income ratios and capital shares

profit variability in for profit and not for profit hospitals this paper proposes two tests of the hypothesis that not for profit hospitals nfps behave differently than for profit hospitals the profit variability test states that the profits of an nfp will be less variable over time than profits of a for profit hospital if the nfp maximizes utility subject to a profit constraint the second test examines whether nfp profits respond less to change in exogenous factors such as medicare reimbursement rates than profits of for profit hospitals both tests performed on panel data from 1983 to 1988 support the hypothesis that nfps behave differently than for profit hospitals

distributional national accounts methods and estimates for the united states this article combines tax survey and national accounts data to estimate the distribution of national income in the united states since 1913 our distributional national accounts capture 100 of national income allowing us to compute growth rates for each quantile of the income distribution consistent with macroeconomic growth we estimate the distribution of both pretax and posttax income making it possible to provide a comprehensive view of how government redistribution affects inequality average pretax real national income per adult has increased 60 from 1980 to 2014 but we find that it has stagnated for the bottom 50 of the distribution at about 16 000 a year the pretax income of the middle class adults between the median and the 90th percentile has grown 40 since 1980 faster than what tax and survey data suggest due in particular to the rise of tax exempt fringe benefits income has boomed at the top the upsurge of top incomes was first a labor income phenomenon but has mostly been a capital income phenomenon since 2000 the government has offset only a small fraction of the increase in inequality the reduction of the gender gap in earnings has mitigated the increase in inequality among adults but the share of women falls steeply as one moves up the labor income distribution and is only 11 in the top 0 1 in 2014

catching up or crowding out the crowd out effects of catch up retirement contributions on non retirement saving abstract using tax data this paper exploits a discontinuous increase in retirement contribution limits based on exact date of birth this paper finds clear evidence that constrained individuals increase their retirement saving when so eligible but finds no evidence suggesting that non retirement saving falls in the baseline specifications one can rule out crowd out greater than approximately 0 38 to 0 57 at the 95 confidence level depending on the measure used this suggests that the additional contributions induced by catch up eligibility represent an increase in total private saving

an international comparison of hospital efficiency does institutional environment matter the consensus among many health economists is that no meaningful performance differences exist among for profit and non profit hospitals in the us but this topic has continued to be a matter of academic judicial and public policy interest a similar debate has ensued internationally regarding the potential efficiency gains from privatization of public enterprises in this paper we examine empirical evidence from the public highly regulated norwegian hospital sector and the private highly competitive and unregulated california hospital sector to ascertain whether institutional environment and level of market competition significantly affect the degree of productive efficiency in hospitals we compare and discuss the productive efficiency of four similar sets of hospitals operating in different institutional and competitive environments the four samples are carefully matched in the dimensions of sample size hospital size and average lengths of stay heterogeneity in output definition is used to co

wealth inequality in the united states since 1913 evidence from capitalized income tax data this paper combines income tax returns with flow of funds data to estimate the distribution of household wealth in the united states since 1913 we estimate wealth by capitalizing the incomes reported by individual taxpayers accounting for assets that do not generate taxable income we successfully test our capitalization method in three micro datasets where we can observe both income and wealth the survey of consumer finance linked estate and income tax returns and foundations tax records wealth concentration has followed a u shaped evolution over the last 100 years it was high in the beginning of the twentieth century fell from 1929 to 1978 and has continuously increased since then the rise of wealth inequality is almost entirely due to the rise of the top 0 1 wealth share from 7 in 1979 to 22 in 2012 a level almost as high as in 1929 the bottom 90 wealth share rst increased up to the mid 1980s and then steadily declined the increase in wealth concentration is due to the surge of top incomes combined with an increase in saving rate inequality top wealth holders are younger today than in the 1960s and earn a higher fraction of total labor income in the economy we explain how our ndings can be reconciled with survey of consumer finances and estate tax data

household inequality entrepreneurial dynamism and corporate financing economic theories provide conflicting hypotheses on how wealth inequality affects entrepreneurial dynamism to empirically investigate its impact we construct local measures of household wealth inequality based on financial rents home equity and 1880 farmland we identify its effects on entrepreneurship by instrumenting it with land distribution under the 1862 homestead act or us states removal of death taxes wealth inequality decreases firm entry and exit and the proportion of high tech businesses across metropolitan statistical areas there is also less redistribution into public goods supportive of entrepreneurship such as schooling and the judiciary income per capita consequently grows more slowly

choice of pension management fees and effects on pension wealth abstract to shed light on the effects of individual choice on pension wealth we study a policy change to the management fees of pension funds implemented by peru s government in 2013 the reform established a new balance fee as a default option this fee is calculated as a percentage of the pension balance each individual had the initial option of keeping the previous management fee a load factor fee calculated as a percentage of the individual s salary we use administrative data to simulate pension balances based on the individual s choice of fee and the corresponding counterfactual our results indicate that the reform has been potentially adverse to 63 1 of individuals of whom 41 4 were assigned to the default option and 21 7 voluntarily chose the load fee these results reflect both the potentially negative unintended effects of the policy and an alarming lack of financial literacy among citizens we also detect heterogeneity in the intensity of the losses and gains due to the reform which caused greater losses than gains in particular younger and poorer individuals as well as those automatically assigned to the balance fee experienced higher losses moreover the new fee scheme is also associated with increasing inequality between individuals pension wealth

rare disasters and risk sharing with heterogeneous beliefs risks of rare economic disasters can have a large impact on asset prices at the same time difficulties in inference regarding both the likelihood and severity of disasters as well as agency problems can lead to significant disagreements among investors about disaster risk we show that such disagreements generate strong risk sharing motives such that just a small number of optimists in the economy will significantly reduce the disaster risk premium our model highlights the latent nature of disaster risk the disaster risk premium will likely be low and smooth during normal times but increases dramatically when the risk sharing capacity of the optimists is reduced e g following a disaster the model also helps reconcile the difference in the amount of disaster risk implied by financial markets and international macroeconomic data and provides caution to the approach of extracting disaster probabilities from asset prices which will disproportionately reflect the beliefs of a small group of optimists finally our model predicts an inverse u shaped relation between the equity premium and the size of the disaster insurance market the author 2012 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please e mail journals permissions oup com oxford university press

estimating an hedonic translog cost function for the home health care industry medicare home health care plays an important role in providing cost effective care for the chronically ill and elderly long seen as a cost effective substitute for nursing home care home care has become even more important with expenditures increasing by 31 4 from 1990 to 1996 the purpose of this paper is to provide a short run cost analysis of a sample of home health care providers to gain insight into the efficient provision of home health care services this paper is a significant improvement over previous studies in that it uses a nationwide database to more accurately represent the multiproduct nature of the industry and uses an hedonic translog cost estimation with desirable economic properties

top wealth shares in the uk over more than a century abstract recent research highlighted controversy about the evolution of concentration of personal wealth in this paper we provide new evidence about the long run evolution of top wealth shares for the united kingdom the new series covers a long period from 1895 to the present and has a different point of departure from the previous literature we start with the analysis of the distribution of estates left at death we find that the application to the estate data of mortality multipliers to yield estimates of wealth among the living does not substantially change the degree of concentration over much of the period both in the uk and us allowing inferences to be made for years when this method cannot be applied the results show that wealth concentration in the uk remained relatively constant during the first wave of globalization but then decreased dramatically in the period from 1914 to 1979 the uk went from being more unequal in terms of wealth than the us to being less unequal however the decline in uk wealth concentration came to an end around 1980 and since then there is evidence of an increase in top shares notably in the distribution of wealth excluding housing in recent years we investigate the triangulating evidence provided by data on capital income concentration and on reported super fortunes

the effects of for profit status and system membership on the financial performance of hospitals this research examines whether for profit status or system membership is significantly related to the financial performance of hospitals panel data containing 573 observations of florida hospitals for 1984 through 1987 are used in a fixed effects regression model the results indicate that it is system membership rather than forprofit status that is significantly related to better financial performance for profit status is unrelated to overall financial performance system hospitals have higher revenues per admission but not higher expenditures per admission than independent hospitals the findings are consistent with the hypothesis that expanding hospital systems target locations and services that are potentially profitable

time poor working super rich abstract this paper revisits the standard model of labor supply under two additional assumptions consumption requires time and some limited amount of work is enjoyable whereas introducing each assumption without the other one does not produce novel insights combining them together does if the wage rate is sufficiently high for top earners work has a positive marginal utility at the optimum and above a critical wage level it converts into a pure consumption good their labor supply curve is first backward bending and then vertical this can justify an optimal marginal tax rate on top incomes equal to 100 top earners in the vertical half line of the labor supply curve optimally refrain from spending their entire income at the macroeconomic level this can generate a lack of effective demand with some qualifications these findings carry over to models that include savings and philanthropy

true monopolistic competition as a result of imperfect information the paper restates hart s 1985a 1985b definition of large group monopolistic competition distinguishes it from oligopolistic competition and raises the question of whether there are reasonable circumstances that give rise to true monopolistic competition as defined the purpose is to show that consumers imperfect information may create conditions that will turn an otherwise oligopolistic market into a truly monopolistically competitive one