evaluating welfare reform in the united states this paper reviews the economic literature on welfare reform over the 1990s a brief summary of the policy changes is followed by a discussion of the methodological techniques that analyze the effects of these changes on outcomes the paper then critically reviews the econometric and experimental literature on caseload changes labor force changes poverty and income changes and family formation changes a growing body of evidence suggests that recent policy changes have influenced economic behavior and well being one particular set of new style welfare programs seems to show especially promising results with significantly increased work and earnings and reduced poverty

can foreign aid reduce income inequality and poverty this paper s goal is to examine the effect of foreign aid on income inequality and poverty reduction for the period 1971 2002 since simple cross country regressions cannot be taken as true time series findings we focus on dynamic panel data techniques which allow accounting for potential simultaneity and heterogeneity problems we find some weak evidence that foreign aid is conducive to the improvement of the distribution of income when the quality of institutions is taken into account however this result is not robust this finding is consistent with recent empirical research on aid ineffectiveness in achieving economic growth or promoting democratic institutions

complementarities multiplicity and supply information if traders can obtain private information about the payoff and the supply of a stock then there can exist i complementarity in information acquisition and ii multiple equilibria in the financial and information markets the additional dimension of supply information increases coordination possibilities in the financial market leading to multiple equilibria the existence of two information sources can lead to information acquisition being complementary the multiplicity of equilibria is suggestive of excess volatility and crashes the different financial market equilibria imply differing patterns of cost of capital and volume of trade 2009 by the european economic association

the allocational effects of the precision of accounting estimates this paper studies the allocational effects associated with the precision of accounting estimates when the precision of estimates is a choice variable for firms one part of the paper considers the effects of the observability of precision choices we show that generally making precision choices private increases firms equilibrium precision choices and also as a by product their equilibrium investment choices we further show that when firms precision choices are private there may be a disclosure trap in which unless investors conjecture the owner has chosen an estimate with the highest possible precision the owner will respond to investors conjecture by choosing an estimate whose precision is higher than investors conjecture in a multifirm version of the model with endogenous investment we show that the equilibrium investment by the firm increases in the precision of the firm s own estimate and decreases in the precisions of other firms estimates finally we show that in a setting where the firm s initial owner sells his stake in the firm over the course of two periods with disclosures of estimates of the firm s value occurring prior to each sale of shares if the precisions of the estimates are public the equilibrium precisions of the estimates increase over time when the owner sells a sufficiently large fraction of the firm in the first period and otherwise the equilibrium precisions of estimates remain constant over time

financial innovation and information the role of derivatives when a market for information exists we study the effects of financial innovation in a model of endogenous information acquisition we determine the conditions under which the introduction of a derivative written on an existing stock increases or decreases the incentive to purchase information we show that financial innovation produces some effects which hold across informational structures and others which differ the former coincide with the few empirical results that are robust in the literature effects on prices risk premia and volatility while the latter coincide with the ones that differ experiment by experiment effects on volume correlation between volume and volatility and market informational efficiency copyright 2002 oxford university press

strategic pricing signalling and costly information acquisition abstract consider a market where an informed monopolist sets the price for a good or asset with a value unknown to potential buyers upon observing the price buyers may pay some cost for information about the value before deciding on purchases under a belief restriction which generalizes the idea of the cho kreps intuitive criterion we establish a version of the grossman stiglitz paradox there is no separating equilibrium with fully revealing prices yet we also resolve the paradox there is a unique equilibrium and as the cost of information becomes small the equilibrium approaches the full information outcome and prices become perfectly revealing

incentive effects of the u s welfare system a review the author would like to acknowledge support for prior work on this topic from the u s department of health and human services and helpful comments from three anonymous referees rebecca blank howard chernick john fitzgerald irwin garfinkel peter gottschalk edward gramlich david greenberg judith gueron james heckman v joseph hotz robert hutchens michael keane frank levy larry mead michael murray robert plotnick anuradha rangarajan philip robins howard rolston jeffrey smith and daniel weinberg all opinions and errors are those of the author alone

poverty volatility and macroeconomic quiescence a consistent finding in the poverty literature is the diminution of the impact of the macroeconomy on official poverty rates in the united states since the early 1980s up until then measures of aggregate economic activity real gdp growth or the unemployment rate had a more substantial influence on the poverty rate most recently this fact has been documented by hilary w hoynes marianne e page and ann huff stevens 2006 hps hereafter kevin lang 2007 notes that much has changed since the early 1980s with respect to antipoverty policy and labor market factors that affect poverty status important changes include the transition from cash to in kind transfers the stagnation in real median earnings rising earnings inequality and the increase in female headed households nevertheless after considering several factors that influence poverty including wage growth inequality and female employment hps conclude their analysis of poverty trends with the view that explanation of the change in the response of poverty to macroeconomic indicators remains an open issue this paper examines whether traction may be gained on this issue by enhancing our understanding of the volatility of poverty rates specifically we examine the volatility of poverty rates over time and across demographic groups to the extent that poverty rate variability is associated with the risk of poverty incidence it is shown that certain eras have exposed members of particular demographic groups to more poverty risk than others then we contrast the volatility of poverty rates to that of aggregate economic activity margaret m mcconnell and gabriel perez quiros 2000 among others present evidence that the volatility of real gdp has been significantly poverty volatility and macroeconomic quiescence

market based empirical research in accounting a review interpretation and extension a decade and a half of the most concerted and ambitious research effort in accounting history is evaluated here it is the search into the relationship between publicly disclosed accounting information and the consequences of the use of this information by the major group of usersequity investors as such consequences are reflected in characteristics of common stocks traded in major exchanges this research effort known as market based accounting research mbar obtained its impetus from major developments in finance theory during the late 1950s and early 1960s these were the portfolio selection theory and its offspring the capital asset pricing model capm and the concept of informationally efficient capital markets ecm subsequent developments in information economics agency theory and optimal incentive signaling models were quickly incorporated into mbar while the impetus to this line of research came from other disciplines accounting was not only a beneficiary but also to a modest extent a benefactor mbar is relevant to the study of capital market efficiency the capm information economics and regulation this contribution distinguishes mbar from most accounting areas whose contributions to other disciplines are negligible in

central bank transparency and the crowding out of private information in financial markets we use an asset market model based on diamond 1985 to demonstrate that increased central bank transparency may lead to crowding out of costly private information which can result in a market that is less able to predict monetary policy consequently for intermediate levels of public information precision it is optimal for the central bank to actually disclose less than it knows we show that such crowding out can occur even in the likely scenario that public information is more precise than private information under the plausible assumption that traders are nearly risk

slipping into and out of poverty the dynamics of spells this paper examines the dynamics of poverty previous analyses have examined either fluctuations in the male heads earnings or the frequency of poverty periods over a fixed time frame our approach depends on a definition of spells of poverty using this methodology we find that the majority of poor persons at any time are in the midst of a rather long spell of poverty the methodology also allows us to estimate that less than 40 percent of poverty spells begin because of a drop in the heads earnings while 60 percent of the spells end when the heads earnings increase thus researchers must focus on household formation decisions and on the behavior of secondary family members there has been a dramatic resurgence recently of discussion of the underclass the discussion is reminiscent of debates about poverty during the 1960s when the notions of a culture of poverty particularly as popularized by michael harrington s other america 1962 dominated both intellectual and policy thinking the idea of an underclass seems inconsistent however with much of the research on the dynamics of poverty during the 1970s that research using new longitudinal data seemed to show that the bulk of the poor were poor for only a few years the research also showed that the poor were a very heterogeneous group including a small minority of persistently poor the persistence of poverty is of interest both for understanding the phenomenon and for developing policy claims about dependency and separate life styles among the poor rest on assumptions about the long term nature of poverty questions

prospect theory and market quality abstract we study equilibrium trading strategies and market quality in an economy in which speculators display preferences consistent with prospect theory kahneman and tversky 39 tversky and kahneman 63 i e loss aversion and mild risk seeking in losses loss aversion risk seeking in losses induces speculators to trade less more and less cautiously more aggressively with their private information but also makes them less more inclined to purchase private information when it is costly in order to mitigate enhance their perceived risk of a trading loss we demonstrate that these forces have novel nontrivial state dependent effects on equilibrium market liquidity price volatility trading volume market efficiency and information production

information and diversity of analyst opinion this paper examines problems in the use of divergence of analyst opinion as a proxy for estimation risk in empirical studies of security returns and asset pricing models we demonstrate that diversity of opinion can increase even though the amount of private information increases and we show that diversity of opinion may overstate estimation risk if the capital market aggregates the information held by investors we produce empirical results consistent with our conclusions specifically we find that divergence of opinion can produce measures of estimation risk that are inconsistent with a received proxy for estimation risk and with observed common stock returns

equilibrium price formation and the value of private information an economy is analyzed in which agents first choose whether to acquire costly information about the return to a risky asset and then choose demand functions that determine the allocation of assets it is a well known paradox that if agents are price takers and prices are fully revealing then an equilibrium with costly information acquisition does not exist it is shown that if the price formation process is modeled explicitly and agnets are not price takers then it is possible to have an equilibrium with fully revealing prices and costly information acquisition article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

poverty alleviation as an economic problem economists distinguish between technological problems in which variable means confront a given end and economic problems in which given means are allocated across competing ends james buchanan and f a hayek each offer constructive criticisms of the standard definition of an economic problem arguing that economists too easily slide into mechanistic and teleological thinking building on these accounts we argue that there are three key dimensions to the economic problem exchange coordination and governance we then make a case that poverty alleviation is more like an economic problem than a technological one an economic problem with a small e we survey empirical evidence from economics anthropology and sociology indicating that poverty is not a simple lack of objectively identifiable resources but rather a multidimensional and socially embedded phenomenon understanding what poverty alleviation would even look like requires thinking through problems of exchange coordination and governance

investor attention overconfidence and category learning abstract motivated by psychological evidence that attention is a scarce cognitive resource we model investors attention allocation in learning and study the effects of this on asset price dynamics we show that limited investor attention leads to category learning behavior i e investors tend to process more market and sector wide information than firm specific information this endogenous structure of information when combined with investor overconfidence generates important features observed in return comovement that are otherwise difficult to explain with standard rational expectations models our model also demonstrates new cross sectional implications for return predictability

bank credit commitments credit rationing and monetary policy when loan needs are uncertain and bankruptcy is costly contracts resembling bank credit commitments dominate ordinary debt contracts the fees charged on commitments reduce bankruptcy risk by smoothing out borrowers loan payments reduced bankruptcy risk entitles borrowers to larger loans thereby reducing the risk of quantity rationing even if commitments reduce rationing risk monetary policy is not necessarily weaker under commitment finance a rise in lenders cost of funds perhaps reflecting a monetary contraction can reduce the expected value of a project more under a commitment than under an ordinary debt contract copyright 1994 by ohio state university press

the spillover effects of state spending abstract this paper estimates the extent to which state spending is influenced by the spending of neighboring states examining several different metrics of neighborliness in order to better identify the channels for interstate spillovers it improves on previous studies by taking advantage of exogenous shocks to state medical spending to abstract from correlated local conditions and by allowing for spatial autocorrelation focusing on mandated increases in medical spending the analysis shows that each dollar of state spending causes spending in neighboring states to increase by almost 90 cents the most predictive measure of neighborliness is the degree of population mobility between states suggesting that rational concerns about adverse migration may drive the interdependence of state spending policy

strategic choices of quality differentiation and pricing in financial services abstract two financial services firms fsfs produce information on future returns from risky assets incorporate this information in a report and sell the reports to investors the fsfs make strategic choices of the quality differentiation and prices of their reports their optimal strategic choices of quality and differentiation divide the market for the report into three segments each fsf has a monopoly in its own segment and the two compete head to head in a duopoly segment the sizes of the monopoly segments increase with increases in quality and differentiation an increase in differentiation reduces the size of the duopoly market while an increase in quality has an ambiguous effect on the duopoly market for high enough equilibrium differentiation the size of the duopoly market decreases with an increase in quality the non cooperative fsfs pursue niche strategies each focusing on a different related set of risks in order to coordinate the contents of their reports to achieve the equilibrium degree of product differentiation recent years have seen a worldwide wave of financial firm mergers and acquisitions this paper s model suggests that in equilibrium fsfs differentiate their products and develop profitable niches in principle however sufficiently strong economies of scope could lead to a small number of fsfs with little differentiation that dominate all financial services markets

heterogeneity in the impact of economic cycles and the great recession effects within and across the income distribution abstract in this paper we examine the effects of economic cycles on low to moderate income families we use variation across states and over time to estimate the effects of cycles on the distribution of income using fine gradations of the household income to poverty ratio we also explore how the effects of cycles affect the risk of falling into poverty across demographic groups focusing on age race ethnicity and family type we conclude by testing to see whether these relationships have changed in the great recession we discuss the results in light of the changes in the social safety net in recent decades

public information and uninformed trading implications for market liquidity and price efficiency abstract we develop a rational expectations equilibrium model in which noise trading comes from discretionary liquidity traders the equilibrium quantity of aggregate noise trading is endogenously determined by the population size of liquidity traders active in the financial market by improving market liquidity public information reduces the expected trading loss of liquidity traders and thus attracts more such traders to the market which negatively affects information aggregation analyzing an alternative setting that models noise trading as coming from hedgers yields similar insights in a setting with endogenous information public information can harm information aggregation both through crowding out private information and through attracting noise trading

information expected utility and portfolio choice we study the consumption investment problem of an agent with a constant relative risk aversion preference function who possesses noisy information about the future prospects of a stock we also solve for the value of information to the agent in closed form we find that information can significantly alter consumption and asset allocation decisions for reasonable parameter ranges information increases consumption in the vicinity of 25 information can shift the portfolio weight on a stock from 0 to around 70 thus de pending on the stock beta the weight on the market portfolio can be considerably reduced with information causing the appearance of underdiversification the model indicates that stock holdings of informed agents are positively related to wealth unrelated to systematic risk and negatively related to idiosyncratic uncertainty we also show that the dollar value of information to the agent depends linearly on his wealth and decreases with both the propensity to intermediate consumption and risk aversion

the price effect of option introduction this paper examines the price effect of option introduction from 1974 to 1980 the introduction of individual options causes a permanent price increase in the underlying security beginning approximately three days before introduction the price effect appears to be associated with introduction and not announcement throughout the sample period excess returns volatility declines with option introduction systematic risk is unchanged there is a positive relation between the price increase and a measure of activity in the options market copyright 1989 by american finance association

an economic model of welfare stigma perhaps the most basic assumption of the economic theory of consumer demand is that more is better than less virtually all of the major propositions of consumer theory can in a certain sense be derived from the assumption that goods are good interestingly however this tenet seems to be violated by the behavior of many individuals in the low income population for many turn out to be eligible for a positive welfare benefit but do not in fact join the welfare rolls for example it has been estimated that in 1970 only about 69 percent of the families eligible for afdc aid to families with dependent children participated in the program see richard michel 1980 the corresponding percentage for afdc u the program for which families with an unemployed male are eligible was only 43 percent and the participation rate in the food stamp program was only 38 percent see maurice mcdonald 1977 this phenomenon has puzzled many investigators because such individuals do not locate on the boundaries of their budget sets consequently most investigators ignore the problem when studying the effects of welfare programs on behavior in this paper this seemingly irrational rejection of an increase in income is modeled as resulting from welfare stigma that is from disutility arising from participation in a welfare program per se 1 the existence of stigma has been amply documented in the sociological literature patrick horan and patricia austin 1974 lee rainwater 1979 where interviews of recipients have often uncovered feelings of lack of self respect and negative self characterizations from participation in welfare nevertheless this phenomenon has not been modeled and many questions consequently remain when is the disutility of participation strong enough to prevent participation shouldn t we expect individuals to weigh the disutility of participation against the potential benefit in their decisions what is the elasticity of participation with respect to the potential benefit also in a slightly different vein how are the work disincentives of welfare affected by stigma these questions have been given scant attention by economists yet they are crucial for our ability to predict the impact of various welfare programs on the lowincome population here these questions are addressed by modeling nonparticipation as a utility maximizing decision the model is developed and estimated for the afdc program 2 the model posits an individual utility function containing not just disposable income but

inequality income growth and mobility the basic facts during the 1950s and 1960s mean wages in the united states grew rapidly and the dispersion around this growing mean changed very litde starting in the 1970s and continuing into the 1980s and 1990s these patterns were reversed mean wages grew slowly and inequality increased rapidly these changes in labor markets were reflected in changes in the distribution of family income the mean of the distribution of family income did increase after 1973 in spite of the near constancy of mean real wages as family members increased the number of hours they worked however the increase in inequality of wages was mirrored by an increase in the dispersion of family income a large descriptive literature has documented the rise in inequality while a smaller behavioral literature has sought to delineate the causes of this rise these changes in the distribution of family income a fected rates of poverty directly during the 1950s and 1960s temporary increases in poverty during recessions were more than offset by declines in poverty during economic expansions as long as the poor gained along with everyone else fi om the secular growth in the mean one could be confident that poverty rates would ratchet down this is exactly what happened as poverty rates fell from 22 4 percent in 1959 to 11 1 percent in 1973

government decision making and the incidence of federal mandates abstract this paper analyzes the effects of federally mandated program changes on state spending and revenues incorporating and evaluating the predictive value of several common theories of the state decision making process using several sources of exogenous increases in public medical spending i estimate that the entire state portion of the burden of mandated spending is borne by decreases in other public welfare spending while federal mandates may influence the composition of benefits at the state level it is much more difficult for them to change the total level of state transfers comparison of state reactions to different shocks suggests that these reductions are due in part to the substitutability of programs in the voter utility function but also in part to the stickiness of spending within budget categories states with greater racial differences between recipients and voters and states with less generous neighbors reduce other public welfare spending by even more alleviating the burden the medical expansions imposed on their taxpayers mandates may thus serve only to increase inequality across states

learning from trading the incorporation of diverse information into asset prices is empirically examined in an actual securities market with multiple rounds of trade using prices of israeli index and nominal bonds of equal maturity we calculate implied expectations of inflation that has already occurred butfor which the official statistic has not yet been announced learning is defined as the convergence of these expectations to the actual level of infzation in the period after the end of the month but before the announcement of the official statistic wefind that the variance of the injiation expectation errors decreases with trading days in this period the decline in the variance suggests that investors learn by repeatedly observing prices about the distribution of other investors information we also find a positive relation between the dispersion of relative price changes and the size of the inflation expectation errors on thefirst round of trade the correlation diminishes as

information aggregation in a noisy rational expectations economy abstract this paper analyzes a general equilibrium model of a competitive security market in which traders possess independent pieces of information about the return of a risky asset each trader conditions his estimate of the return both on his own private source of information and price which in equilibrium serves as a noisy aggregator of the total information observed by all traders a closed form characterization of the rational expectations equilibrium is presented a counter example to the existence of fully revealing equilibrium is developed

equity home bias and corporate disclosure abstract i show that more comprehensive corporate disclosure reduces investors uncertainty about domestic companies payoffs at no cost thereby decreasing investors equity home bias toward a country since investors should base their investment decisions on valid and easily interpretable company information only more comprehensive disclosure will reduce the home bias only if domestic securities law is sufficiently stratified and domestic companies use international accounting standards using panel data for 38 countries from 2003 to 2008 i find that more comprehensive disclosure reduces investors home bias though significantly only for countries that sufficiently enforce their securities law and implement international accounting standards

asset pricing in large information networks we study asset pricing in economies with large information networks we focus on networks that are sparse and have power law degree distributions in line with empirical studies of large scale social networks our theoretical framework yields a rich set of novel asset pricing implications we derive closed form expressions for price volatility profitability and trading volume as functions of the network topology we also study agent welfare and show that the network that optimizes total welfare is typically a uniform one with an intermediate degree of connectedness

partial revelation with rational expectations we exhibit a partially revealing rational expectations equilibrium where no individual knows the state of the world or the quantities traded by any other individual c 1998 academic press

information sharing and central bank intervention in the foreign exchange market abstract this paper develops a model of information sharing among heterogeneously informed agents and it uses the model to examine a rationale for intervention in the foreign exchange market the model shows that in a partially revealing rational expectations equilibrium some agents can gain by sharing among themselves private information about transitory exchange rate disturbances in this setting a central bank can affect the exchange rate by aggregating and disseminating agents information the paper also illustrates the usefulness of intervention as a way to transmit that information

taxes and the labor market participation of married couples the earned income tax credit a distinguishing feature of recent changes to the us system of public assistance is its increasing focus on working families and reliance on the tax system to transfer dollars to needy families after a decade in near total obscurity the earned income tax credit eitc was expanded to become the largest cash transfer program for lower income families with children advocates of the eitc argue that unlike traditional welfare the credit helps promote both the values of family and work indeed empirical evidence consistent with economic theory suggests that the eitc promotes employment among eligible unmarried women with children to target benefits to lower income families however the eitc is based on family income leading to traditional welfare type disincentives for most eligible secondary earners in fact the eitc is likely to reduce overall family labor supply among married couples this paper examines the labor force participation response of married couples to eitc expansions between 1984 and 1996 the effect of the credit is estimated using both quasiexperimental and traditional reduced form labor supply models results from both models show the same qualitative conclusion that the eitc expansions reduced total family labor supply of married couples in all cases we find a decline in labor force participation by married women that more than offsets any rise in participation by their spouses while the labor force participation rate of married men increased by about 0 2 percentage points that of married women decreased by just over a full percentage point these aggregate effects mask substantial heterogeneity in the population women facing the strongest disincentives were more than 2 percentage points less likely to work after the expansions these findings imply that the eitc is effectively subsidizing married mothers to stay home and therefore have implications for the design of the program d 2003 elsevier b v all rights reserved

institutional ownership differential predisclosure precision and trading volume at announcement dates abstract this study examines the relation between ownership structure as revealed by the percentage of outstanding shares held by institutional investors and trading volume at earnings announcement dates we find that volume response as a function of institutional ownership is quadratic with the quadratic curve that reaches a maximum at around 50 institutional ownership when risk tolerances are identical across investor types such a relation is consistent with kim and verrecchia s 1991a proposition that trading volume response to public announcements increases with the level of cross investor variation in precision of private predisclosure information

the demand for differentiated information a framework for distinguishing between the quantity of information and its quality or type is presented in which information is an indivisible differentiated commodity for which satiation occurs at one unit uncountably many types of information are possible which can be costlessly combined by agents similarity of information is expressed by a metric which reflects substitution possibilities among different information structures in the model traders desire information only because it helps them to maximize state dependent utilities under uncertainty then the individual demand for information is well defined but possibly nonconvex valued because of the indivisibilities

the existence of fully rational expectations approximate equilibria with noisy price observations abstract nonrevealing fully rational expectations approximate equilibria exist in microeconomic pure exchange economies in which uninformed agents have suitably dispersed noisy price observations such traders maximize a state dependent expected utility conditional on the price vector they observe the distributions of noisy price observations and the correct equilibrium relationship between states of the world and prices in equilibrium aggregate excess demand is small with high probability in every state of the world and its expectation is also small this magnitude diminishes as the noisy price observations become more accurate equilibria are obtained by applying a fixed point argument to state dependent excess demand functions which are smooth because of the noisy price observations

labor market consequences of internal migration in turkey abstractduring the past 30 years turkey has undergone profound economic and social transformations including fundamental shifts from a state oriented economy to a market oriented economy large scale modernization investments in telecommunication and transportation services and low intensity ongoing armed conflict concentrated in the country s southeastern region for such a period using the 1990 and 2000 turkish censuses i evaluated the labor market consequences of internal migration that might have been sparked by such significant economic and social changes overall the results suggest that provinces with a higher share of recent migrants may observe decreases in their native population s labor market opportunities while this adverse impact of the recent migrant inflows remains robust it exhibits heterogeneity with respect to the skill level of natives as well as for the labor market outcomes of different native and migrant groups

speculative profits innovation and growth when technological change affects the prices of tradeable assets innovators can obtain speculative profits by exploiting their inside information as to the occurrence of innovations we propose a tractable model of endogenous growth that formalizes this argument originally due to hirshleifer 1971 we then use the model to assess two claims advanced by hirshleifer namely that speculative profits can generate excessive investment in r d when they add to monopoly rents guaranteed by patent protection or else even in a perfectly competitive economy the analysis confirms the first claim but casts doubts on the second one jel o30 o40

an evaluation of the federal legal services program evidence from crime rates and property values abstract this paper uses the city level roll out of legal service grants to evaluate their effects on crime using uniform crime reports from 1960 to 1985 the results show that there is a short run increase of 7 in crimes reported and a 16 increase in crimes cleared by arrest results show an increase in the staffing of police officers in cities that received legal services these cities are also associated with having higher median property values 10 years later this supports the narrative that legal services changed police behavior through litigation or threats of litigation

revealed preference rational inattention and costly information acquisition we develop a revealed preference test for optimal acquisition of costly information the test encompasses models of rational inattention sequential signal processing and search we provide limits on the extent to which attention costs can be recovered from choice data we experimentally elicit state dependent stochastic choice data of the form the tests require in simple cases tests con rm that subjects adjust their attention in response to incentives as the theory dictates

the adjustment of stock prices to information about inflation this paper analyzes the reaction of stock prices to the new information about inflation based on daily returns to the standard and poor s composite portfolio from 1953 78 it seems that the stock market reacts negatively to the announcement of unexpected inflation in the consumer price index c p i although the magnitude of the reaction is small it is interesting to note that the stock market seems to react at the time of announcement of the c p i approximately one month after the price data are collected by the bureau of labor statistics

information tradeoffs in dynamic financial markets abstract in dynamic financial markets the stochastic supply of risky assets has a significant informational role contrary to static models where it acts as noise in dynamic markets stochastic supply contains information about risk premiums acquiring private dividend information helps investors disentangle dividend information from discount rate information contained in prices for uninformed investors however as more informed investors enter the economy prices become more informative about dividends but less informative about discount rates this tradeoff creates complementarities in information acquisition and multiple equilibria in the information market

a theory of fed watching in a macroeconomic policy game this paper examines the phenomenon of fed watching within the context of a macroeconomic policy game following a cukierman and a h meltzer s 1986 article the policymaker s preferences are private information and noisy monetary control causes past observations of money growth to be a noisy signal of the monetary authority s future intentions individuals are allowed to acquire additional information about the monetary authority s preferences thus both past observations of money growth and costly information about the policymaker s preferences are used by agents in forming expectations about policy the public s acquisition of information alters the monetary authority s strategic calculus making noisy monetary control less desirable copyright 1992 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

poverty in america trends and explanations despite robust growth in real gdp per capita in the last three decades u s poverty rates have changed very little we summarize some basic facts about poverty in the united states relying on a combination of previously published data from the census bureau and our own tabulations based on current population survey data we then discuss and evaluate four determinants of changes in the poverty rate that have been advanced in the literature the impact of labor market opportunities the role of changes in family structure the role played by government antipoverty programs and the role of immigration

do in work tax credits serve as a safety net we test the eitc s response to economic need using irs data we exploit differences in timing and severity of economic cycles across states because the eitc requires earned income there is a theoretical ambiguity in the credit s cyclicality we find higher unemployment leads to increased likelihood of eitc recipiency and in credit amounts received for married couples but has insignificant effects for single individuals the eitc s protective effects are concentrated among skilled workers the eitc mitigates income shocks for married couples with children and groups likely to have moderate earnings but does not for most recipients single parents with children

distinguishing the effect of overconfidence from rational best response on information aggregation this article studies the causal effect of individuals overconfidence and bounded rationality on information aggregation by using a new multiperiod game in which agents are rewarded for submitting accurate estimates of an unknown asset s value based on i their private information and ii others past estimates by carrying out laboratory sessions of this game in which subjects overconfidence is a treatment variable i find that overconfidence affects the information aggregation process by increasing the dispersion of estimates and decreasing the rate of estimates convergence however even when subjects are not overconfident qualitatively similar deviations from the fully rational model predictions are observed i show that this can be explained by subjects strategic response to errors the author 2008 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please email journals permissions oxfordjournals org oxford university press

viable allocations of information in financial markets abstract we study in the context of a financial market allocations of information that are consistent with endogenous information acquisition we focus on whether information is concentrated within a fraction of the market or is diffuse the aggregation of information in prices tends to make signals more complementary than they would be if considered in isolation favoring concentration of information however the ability to use some signals together with prices to predict other signals may increase the degree of substitutability among signals we present conditions under which each of these effects is particularly strong

the more we know about the fundamental the less we agree on the price i allow trading horizon heterogeneity across groups in a standard differential information model of a financial market this approach can explain the well established phenomenon that after a public announcement trading volume increases more private information is incorporated into prices and volatility increases in such environments public information has the important secondary role of helping agents learn about the information of other agents therefore whenever the correlation between the private information of different groups is sufficiently low a public announcement increases disagreement among short horizon traders regarding the expected selling price even as it decreases disagreement about the fundamental value of the asset additional testable implications are also suggested

climbing out of poverty falling back in measuring the persistence of poverty over multiple spells this paper investigates the persistence of poverty over individuals life times using a hazard rate approach that accounts for multiple spells of poverty and incorporates spell duration individual and household characteristics and unobserved heterogeneity the findings highlight the importance of considering multiple spells in an analysis of poverty persistence with half of those who end poverty spells returning to poverty within four years accounting for multiple spells shows that approximately 50 percent of blacks and 30 percent of whites falling into poverty in some year will have family income below the poverty line in five or more of the next ten years

effects of insider trading disclosures on speculative activity and future prices this paper explores a simple model of the effects of requiring a public disclosure of insider trader activity in future markets

the more things change the more they stay the same the safety net and poverty in the great recession much attention has been given to the large increases in safety net spending during the great recession we examine the relationship between poverty the safety net and business cycles historically and test whether there has been a significant change in this relationship we find that post welfare reform temporary assistance for needy families did not respond during the great recession and extreme poverty is more cyclical than in prior recessions food stamps and unemployment insurance are providing more protection or no less protection in the great recession and there is some evidence of less cyclicality for 100 poverty

the pricing of initial public offerings a dynamic model with information production this paper presents an information theoretic model of ipo pricing in which insiders sell stock in both the ipo and the secondary market have private information about their firm s prospects and outsiders may engage in costly information production about the firm high value firms knowing they are going to pool with low value firms induce outsiders to engage in information production by underpricing which compensates outsiders for the cost of producing information the information is reflected in the secondary market price of equity giving a higher expected stock price for high value firms

risk aversion market liquidity and price efficiency a model of a noncompetitive speculative market is analyzed in which privately informed traders and market makers are risk averse market liquidity is found to be nonmonotonic in the number of informed traders their degree of risk aversion and the precision of their information it is also shown that increased liquidity trading leads to reduced price efficiency and that under endogenous information acquisition market liquidity may also be nonmonotonic in the variance of liquidity trades article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

welfare the earned income tax credit and the labor supply of single mothers during 1984 1996 welfare and tax policy were changed to encourage work by single mothers the earned income tax credit was expanded welfare benets were cut welfare time limits were added and welfare cases were terminated medicaid for the working poor was expanded as were training programs and child care during this same time period there were unprecedented increases in the employment and hours of single mothers we show that a large share of the increase in work by single mothers can be attributed to the eitc and other tax changes with smaller shares for welfare benet cuts welfare waivers training programs and child care programs