some evidence on herding behavior of u s banks the authors examine the international lending decisions of u s commercial banks of different sizes from 1977 to 1982 for evidence ofthe ex istence of herding behavior granger sims causality tests for the loans gran ted by the top nine the next fifteen and the remaining u s banks provide no c lear evidence of herding between the top nine and the next fifteen banks there is however evidence that the remaining banks mostly small ones herded behind the top twenty four banks overall the analysis presented here points to a very weak herding behavior copyright 1987 by ohio state university press

banking panics information and rational expectations equilibrium this paper shows that bank runs can be modeled as an equilibrium phenomenon we demonstrate that some aspects of the intuitive story that bank runs start with fears of insolvency of banks can be rigorously modeled if individuals observe long lines at the bank they correctly infer that there is a possibility that the bank is about to fail and precipitate a bank run however bank runs occur even when no one has any adverse information extra market constraints such as suspension of convertibility can prevent bank runs and result in superior allocations banking panics were a recurrent phenomenon in the united states until the 1930s they have re emerged as a source of public concern and much theoretical research recently in this paper we provide an information theoretic rationale for bank runs the traditional story is that contagion is an important aspect of bank runs the idea seems to be that when the general public observes large withdrawals from the banking system fears of insolvency grow resulting in even larger withdrawals of deposits in our model some individuals withdraw because they get information that future returns are likely to be low uninformed individuals observing this also have an incentive to liquidate their investments in addition some individuals need to withdraw deposits for other than informationally based reasons thus if the random realization of such a group of individuals is unusually large then the uninformed individuals will be misled and will precipitate a run on the bank the technology is such that a large volume of withdrawals involves liquidation costs consequently runs on the bank do impose social costs a mechanism that may reduce these costs in our model is to suspend convertibility if withdrawals are high however those individuals who need to withdraw their assets for liquidity reasons are worse off ex post our model provides a rationalization for restrictions in demand deposits that were widespread prior to 1929 friedman and schwartz 7 suggest that restrictions of payments ensured

corporate conservatism and relative compensation this paper demonstrates that in a simple setting with managerial concern for reputation and asymmetric information on ability most managers may refrain from undertaking innovations that stochastically dominate an industry standard common components of uncertainty lead to market inferences of managerial ability based on relative performance managers who undertake the industry standard are consequently evaluated with a more accurate benchmark than those innovating discontinuities in compensation when performance is low because of firings lead managers to have differing valuations of an accurate benchmark depending on type in particular very high and very low ability managers are more likely to undertake superior innovations than those of average ability

on investor preferences and mutual fund separation abstract we extend cass and stiglitz s analysis of preference based mutual fund separation we provide a complete characterization of the general k fund separation we show that some instances of separation with many funds can be constructed by adding inverse marginal utility functions having separation with one or a few funds we also show that there is money separation in which we can choose the riskless asset as one of the funds if and only if there is a fund which may or may not be the riskless asset with a constant allocation as wealth changes in general we do not know how to write the separating utility functions in closed form but we can do so in the special case of sahara utility defined by chen et al and for a new class of gobi preferences introduced here

an economic analysis of the homeownership decision analysts of the homeownership decision have traditionally asserted that owning makes much greater sense than renting 16 p 359 for families in high tax brackets however empirical studies of homeownership propensities indicate that not all high income families own nor do all low income families rent for example li 8 p 1081 notes that a large number of studies find that a variety of variables such as family size age of the head and race are generally found to be determinants of homeownership even when income or the marginal tax bracket are held constant previous attempts to explain why the marginal tax bracket is not a sufficient statistic for homeownership argue that people differ in their preferences for homeownership either because owning and renting are not perfect substitutes in consumption see for example 13 141 or because of differences in liquidity mobility ability at home repairs and home management and simply peculiar circumstances 4 p 14 this paper develops a general model of the homeownership decision and explores two alternative explanations of why the marginal tax bracket is not a sufficient statistic this is accomplished by incorporating both transaction costs and housing market quality sorting into the model section ii derives a simple parametric statement of the homeownership decision the third section examines the special case which yields a homeownership decision rule which is comparable to existing models an alternative special case is presented in the fourth section which incorporates consumer sorting across quality markets it is demonstrated that the housing market may adjust until

risk return and the three moment capital asset pricing model another look abstract most studies on three moment capital asset pricing models have found a strong and consistent relationship between an asset s returns and its higher statistical moments other studies report results which are opposite to what the theory would suggest this paper re examines the empirical evidence of the three moment capital asset pricing model on 43 randomly selected mutual funds from 1970 1986 the results indicate that trade offs of risks for returns on the selected mutual funds are less than predicted and inconsistent

security analysis and trading patterns when some investors receive information before others in existing models of information acquisition all informed investors receive their information at the same time this article analyzes trading behavior and equilibrium information acquisition when some investors receive common private information before others the model implies that under some conditions investors will focus only on a subset of securities herding while neglecting other securities with identical exogenous characteristics in addition the model is consistent with empirical correlations that are suggestive of oft cited trading strategies such as profit taking short term position reversal and following the leader mimicking earlier trades in existing models of information acquisition all informed investors receive their information at the same time while these models provide many important insights in reality some investors either fortuitously or owing to superior skill acquire pertinent information before others by being first an investor can exploit this information to great advantage information that is uncovered only slightly later is less valuable even if it has not yet been publicly revealed we show in this article that the sequential nature of information arrival has a significant effect on both the trading decisions and the types of information collected by investors the model we develop describes the investment choices of a set of competitive risk averse investors who investigate the long term prospects of firms lucky or high ability investors uncover the

analyst forecasts and herding behavior the use of analyst forecasts as proxies for investors earnings expectations is commonplace in empirical research an implicit assumption behind their use is that they reflect analysts private information in an unbiased manner as demonstrated here this assumption is not necessarily valid there is shown to be a tendency for analysts to release forecasts closer to prior earnings expectations than is appropriate given their information further analysts exhibit herding behavior whereby they release forecasts similar to those previously announced by other analysts even when this is not justified by their information these results are shown to have interesting empirical implications article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

the impact of supply constraints on house prices in england we test the theoretical prediction that house prices respond more strongly to changes in local earnings in places with tight supply constraints using a unique panel dataset of 353 local planning authorities in england between 1974 and 2008 exploiting exogenous variation from a policy reform vote shares and historical density to identify the endogenous constraints measures we find that regulatory constraints have a substantive positive impact on the house price earnings elasticity the effect of constraints due to scarcity of developable land is largely confined to highly urbanised areas and uneven topography has a quantitatively less meaningful impact

speculative prices and popular models t he rational expectations revolution in economics was born of the recognition that the expectations people hold for future economic variables are fundamental to their behavior thus our economists economic models require their those who make up the economy economic models models which they use to generate their expectations the key idea of rational expectations models is to collapse the two models into one to assume that people know or behave as if they know the true model that describes the economy this idea allows economists to construct simple and elegant models of the economy models that are appealing theoretically and that can be studied without collecting any data about the models in the minds of economic actors the problem with the rational expectations models is that collapsing the two kinds of models into one is a gross oversimplification obviously the popular models the models that are used by the broad masses of economic actors to form their expectations are not the same as those held by economists once one accepts the difference economic modelling cannot proceed without collecting data on the popular models themselves this paper reports on such a data collection effort on popular models using questionnaire survey methods with the purpose of understanding speculative markets i will report here on my research to understand the u s stock market crash of october 1987 research fumiko konya yoshiro tsutsui and i undertook to understand the japanese stock market crash of october 1987 research karl case and i undertook to understand recent real estate booms and research john pound and i undertook to understand the periodic hot markets for initial public offerings ipo s of common stock

neighborhood externality risk and the homeownership status of properties in contrast to corporate and institutional investors single owner occupiers cannot adequately diversify housing investment risk consequently homeownership should be relatively less likely in places with higher housing investment risk using the american housing survey it is documented that neighborhood externality risk a major component of housing investment risk substantially reduces the probability that a housing unit is owner occupied even when controlling for housing type and numerous location and household specific characteristics the effects are quantitatively meaningful and change in change estimates suggest that the effects are causal

the impact of transaction costs and the expected length of stay on homeownership abstract economic theory suggests that an increase in the expected length of stay in a dwelling increases the probability of a household choosing to own a house rather than rent this hypothesis is derived from recognition that there are substantial transaction costs associated with homeownership and increased expected time in the home reduces the annualized transaction cost using a military data set we confirm that expected length of stay in a dwelling and the transaction costs of selling are very important to the ownership decision our best estimate of the transaction costs of selling a home are the sum of 3 of house value and 4 of household earnings

dyke maintenance and other stories some neglected types of public goods the orthodox summation model of a pure nonexcludable public good assumes that each individual consumes a quantity of public good defined as the sum of all individuals contributions to that good recently hirshleifer 1983 1985 has analyzed models that do not fall within this class at one extreme is the weakestlink in which the total quantity available to each consumer equals the smallest individual contribution at the other is the best shot in which the total quantity available equals the largest individual contribution hirshleifer s example of the weakest link case concerns a circular region of which each citizen owns a pie shaped slice the perimeter is marked by a dyke floods may penetrate the weakest point of the dyke and cause damage equally throughout the region each citizen decides the height and state of repair of that section of the dyke adjoining his piece of land its maintenance constituting his contribution to the public good thus the level of protection enjoyed by all is determined by the least well maintained section of the dyke an example of the best shot case concerns a number of antimissile batteries ringing a city firing at an incoming icbm all that matters is the accuracy of the best shot bliss and nalebuff 1984 discuss dragon slaying as another example of a best shot situation section ii of this paper introduces a class of functions of which the summation weakest link and best shot are examples section iii analyzes the properties of equilibrium when consumers have identical tastes and incomes section iv analyzes the implications of income redistribution in the summation case the equilibrium is unaffected by the initial redistribution over a range and outside that range transfers help the recipient and hurt the donor within the broader class of models however the invariance property does not generally hold and there may be opportunities for paretoimproving income redistribution i give an example similar to the weakest link case in which a pareto improving redistribution is

why do households without children support local public schools linking house price capitalization to school spending while residents receive similar benefits from many local government programs only about one third of all households have children in public schools we argue that capitalization of school spending into house prices can encourage even childless residents to support spending on schools we identify a proxy for the extent of capitalization the supply of land available for new development and show that towns in massachusetts with little undeveloped land have larger changes in house prices in response to a plausibly exogenous spending shock towns with little available land also spend more on schools we extend these results using data from school districts in 46 states showing that per pupil spending is positively related to the percentage of developed land this positive correlation persists only in districts where the median resident is a homeowner and is stronger in districts with more elderly residents who do not use school services and have a shorter expected duration in their home our findings support models in which capitalization encourages the provision of durable local public goods and provides an additional reason why some elderly support local school spending

portfolio performance evaluation in a mean variance skewness framework abstract astronomical amounts of money are being invested in financial markets consequently the evaluation of portfolio performance has created a great deal of interest among practitioners as well as academic researchers the literature suggests that portfolio efficiency based on mean variance skewness is more desirable than the one based on mean variance however there are no well established procedures to measure efficiency in this framework mainly due to the computational difficulties the aim of this paper is to develop a portfolio performance measure based on mean variance skewness framework by utilizing a non parametric efficiency analysis tool namely data envelopment analysis

imperfectly mobile households and durable local public goods does the capitalization mechanism work abstract a complication in the decision making of local governments is that a community s residents may move before the future benefits associated with current tax and expenditure policies are fully realized it has been argued that the capitalization of these benefits into current property values can induce local governments to behave efficiently this paper drops two assumptions behind the capitalization hypothesis perfect labor mobility and the absence of uncertainty about the future benefits it is shown that these benefits may be overcapitalized or undercapitalized depending on a critical aspect of the uncertainty consequently there is underinvestment in some projects but overinvestment in others

making waves to innovate or be a fast second internal finance leads to a stalemate in innovation games each firm wants to free ride on the others costly experimentation when instead innovation is financed externally e g with venture capital or initial public offerings there is an endogenous cost to delay waiting to make risky irreversible investment conveys pessimistic information i characterize the relative sizes of waves of leaders and followers in innovation cycles and the endogenous intertemporal distribution of quality as each wave builds and crashes finally old waves leave an adverse selection hangover such that too much early innovation can cause the market for future innovation to break down

optimal algorithms and lower partial moment ex post results portofolio management in the finance literature has typically used optimization algorithms to determine security allocations within a portfolio in order to obtain the best trade off between risk and return these algorithms despite some improvements are restrictive in terms of an investor s risk aversion utility function since individual investors have different levels of risk aversion this paper proposes two portfolio optimization algorithms that can be tailored to the specific level of risk aversion of the individual investor and performs ex postevaluation tests of the algorithm performance

on the empirics of social capital this paper critically examines the way in which empirical evidence is developed in support of a role for social capital in socioeconomic outcomes three leading studies of social capital are reviewed and in each case argued to suffer from various identification problems a general set of conditions under which social capital effects may be identified in linear models is given careful attention to these conditions combined with greater openmindedness as to what constitutes appropriate evidence seems the best route to improving empirical studies of social capital

clustering of initial public offerings information revelation and underpricing abstract by providing an analysis of sequential going public decisions the paper outlines conditions under which hot issue markets arise i e under which the likelihood of a second initial public offering increases after a first firm has gone public two effects can trigger the rise of hot issue markets in a setting with asymmetric and costly information about both firm quality and industry prospects the risk averse entrepreneur can be subject to risk induced selling pressure because of uncertain industry prospects conveyed by a first ipo in the industry also investors can free ride on the industry news and increase their valuation for a second firm by abstaining from further costly information production finally the model offers an explanation for the empirical finding that hot issue markets exhibit a higher degree of underpricing than cold issue markets

an equilibrium model of investment under uncertainty this paper analyzes the optimal investment decisions of heterogeneous rms in a competitive uncertain environment we characterize rms optimal investment strategy explicitly and derive a closed form solution for rm value we show that in the strategic equilibrium real option premia are signi cant as a result rms delay investment choosing optimally not to undertake some positive npv projects the model predicts that rm returns vary over the business cycle with returns negatively skewed during expansions but positively skewed in recessions

rational herding in financial economics abstract this paper briefly describes recent papers on the economics of rational herding in financial markets some models can predict perfect herding in which rational agents all act alike without any countervailing force such herding typically arises either from direct payoff externalities negative externalities in bank runs positive externalities in the generation of trading liquidity or in information acquisition principal agent problems based on managerial desire to protect or signal reputation or informational learning cascades the paper also provides a few pointers to related literature and suggests issues to be addressed in future research

industry divestiture waves how a firm s position influences investor returns because of the opaque nature of divestitures investors face considerable uncertainty in evaluating divestiture decisions and thus may look to a firm s social context defined in terms of the per

social interaction and urban sprawl abstract various authors most notably putnam putnam r d 2000 bowling alone simon and schuster new york have argued that low density living reduces social capital and thus social interaction and this argument has been used to buttress criticisms of urban sprawl if low densities in fact reduce social interaction then an externality arises validating putnam s critique in choosing their own lot sizes consumers would fail to consider the loss of interaction benefits for their neighbors when lot size is increased lot sizes would then be inefficiently large and cities excessively spread out the paper tests the premise of this argument the existence of a positive link between interaction and density using data from the social capital benchmark survey in the empirical work social interaction measures for individual survey respondents are regressed on census tract density and a host of household characteristics using an instrumental variable approach to control for the potential endogeneity of density

a direct test of the homevoter hypothesis abstract we propose a methodology that facilitates a direct test of the homevoter hypothesis which posits that homeowners vote in favor of public projects they perceive increase residential property values and against those that do not first we estimate how pre referendum events that signal a higher probability that the public project will be undertaken impact local residential property values before the referendum is held these pre referendum impacts are considered noisy signals to homeowners about the market s assessment of the net marginal benefits of the project second we aggregate these market signals to the precinct level and relate them to precinct level voting results concerning the proposed project we apply this two step approach to the 2004 referendum in arlington texas for a publicly subsidized stadium for the nfl dallas cowboys the analysis supports the homevoter hypothesis and establishes a possible methodology for future evaluations in this small but growing empirical literature

homeownership community interactions and segregation the authors consider a multi community city where community quality is linked to residents civic efforts such as being proactive in preventing crime and ensuring the quality of publicly provided goods homeownership increases incentives for such efforts but credit market imperfections force the poor to rent within community externalities can lead to segregated cities with the rich living with the rich in healthy homeowner communities and the poor living with the poor in dysfunctional renter communities the pattern of tenure segregation across communities in the united states accords well with the study s prediction the authors analyze alternative tax subsidy policies to alleviate inefficiencies in the housing market and identify the winners and losers under such policies

sources of panics evidence from the weekly data abstract we use weekly data 1867 1933 to investigate the sources of banking and financial panics we find that while a panic s exact starting date is unpredictable one can identify environments conducive to panics a lack of liquidity in financial markets seems to be a key source results also reveal the effectiveness of the aldrich vreeland act inelastizing the money supply and shortening the panic of 1914 and suggest that the panic of 1933 may have been caused by a speculative attack on the gold backed us dollar via the banks as opposed to a run on the banks directly

distinguishing panics and information based bank runs welfare and policy implications in this paper we contrast panics and information based bank runs in an effort to provide a robust and empirically plausible model of how bank runs are triggered the model of information based runs is characterized by two sided asymmetric information the bank cannot observe the true liquidity needs of the depositors while depositors are asymmetrically informed about bank asset quality we also examine the relative degrees of risk sharing provided by bank deposit contracts and traded equity contracts we show that the choice of deposit or equity depends on the attributes of and information about the underlying investment returns

bank runs as an equilibrium phenomenon a standard demand deposit contract in which individuals are entitled to their full deposit at any time provided the bank is solvent is analyzed in a context in which there are no exogenous events on which agents condition their behavior and a unique equilibrium involving a bank run with positive probability is shown to exist

initial public offerings in hot and cold markets the literature offers many explanations for why the ipo market cycles from hot to cold these include theories in which hot markets represent clusters of ipos in a new industry and signaling models that predict that hot markets draw in better quality firms others suggest hot market ipos stock returns reflect their poor quality we compare ipos over cycles during 1975 2000 and find that hot and cold ipo markets do not differ so much in the characteristics of the firms that go public as in the quantity of firms that go public both hot and cold ipos are largely concentrated in the same narrow set of industries and they have few distinctions in profits age or growth potential our results suggest that hot markets are not driven primarily by changes in adverse selection costs managerial opportunism or technological innovations but more likely reflect greater investor optimism

urban resurgence and the consumer city cities make it easier for humans to interact and one of the main advantages of dense urban areas is that they facilitate social interactions this paper provides evidence for the us suggesting th

an economic approach to social capital a standard optimal investment model can be used to analyse an individual s decision to accumulate social capital we analyse six facts that support the predictions of this individual based approach 1 social capital first rises and then falls with age 2 social capital declines with expected mobility 3 social capital rises in occupations with greater returns to social skills 4 social capital is higher among homeowners 5 social connections fall sharply with physical distance 6 people who invest in human capital also invest in social capital we fail to find robust evidence that social capital investments fall with the value of time or that geographic religious groups generate social capital complementarities

bank suspension of convertibility abstract a banking panic occurs when depositors at all banks seek a large reduction in their deposit holdings suspension of convertibility of demand deposits into currency was the banking system s response to a banking panic when depositors are incompletely informed about the state of bank investments a panic can occur when depositors expect capital losses conditional on having observed noisy indicators of the state of bank investments banks with superior information about the investments can signal to depositors by suspending convertibility that continuation of the long term investments is mutually beneficial

an empirical investigation of ipo returns and subsequent equity offerings abstract several recent papers present signaling models in which firms underprice their initial public offerings of equity ipos so that they can subsequently issue seasoned equity at more favorable prices we test the implications of these models we find a positive relation between ipo underpricing and the probability and size of subsequent seasoned offerings although these results are consistent with the implications of the signaling hypotheses the economic significance appears weak we conduct additional tests to evaluate other explanations for these findings and find the alternatives more compelling

new housing supply and the dilution of social capital this paper examines the role of local housing supply conditions for social capital investment using an instrumental variables approach and data from the social capital community benchmark survey it is documented that the positive link between homeownership and individual social capital investment is largely confined to more built up neighborhoods with more inelastic supply of new housing the empirical findings provide support for the proposition that in these localities house price capitalization provides additional incentives for homeowners to invest in social capital the findings are also largely consistent with the proposition that built up neighborhoods provide protection from inflows of newcomers that could upset a mutually beneficial equilibrium involving reciprocal cooperation however the results do not appear to be driven by selection based on inherent differences in social aptitudes or by tiebout sorting

bank runs the deposit currency ratio and the interest rate abstract this paper provides a model of an economy with a banking system which is subject to bank runs the model is then used to explain the rise in short term interest rates during bank runs and the fall in the deposit currency ratio in anticipation of possible runs

famous first bubbles t he jargon of economics and finance contains numerous colorful expressions to denote a market determined asset price at odds with any reasonable economic explanation such words as tulip mania bubble chain letter ponzi scheme panic crash and financial crisis immediately evoke images of frenzied and probably irrational speculative activity many of these terms have emerged from specific speculative episodes which have been sufficiently frequent and important that they underpin a strong current belief among economists that key capital markets sometimes generate irrational and inefficient pricing and allocational outcomes before economists relegate a speculative event to the inexplicable or bubble category however we must exhaust all reasonable economic explanations while such explanations are often not easily generated due to the inherent complexity of economic phenomena the business of economists is to find clever fundamental market explanations for events and our methodology should always require that we search intensively for market fundamental explanations before clutching the bubble last resort thus among the reasonable or market fundamental explanations i would include the perception of an increased probability of large returns the perception might be triggered by genuine economic good news by a convincing new economic theory about payoffs or by a fraud launched by insiders acting strategically to trick investors it might also be triggered by uninformed market participants correctly inferring changes in the distribution of dividends by observing price movements generated by the trading of informed insiders while some of these perceptions might

systemic risk and international portfolio choice returns on international equities are characterized by jumps moreover these jumps tend to occur at the same time across countries leading to systemic risk we capture these stylized facts using a multivariate system ofjump diffusion processes where the arrival of jumps is simultaneous across assets we then determine an investor s optimal portfolio for this model of returns systemic risk has two effects one it reduces the gains from diversification and two it penalizes investors for holding levered positions we find that the loss resulting from diminished diversification is small while that from holding very highly levered positions is large returns on international equities are characterized by jumps 1 moreover these jumps tend to occur at the same time across countries implying that conditional correlations between international equity returns tend to be higher in periods of high market volatility or following large downside moves 2 our objective in

the intensity and timing of investment the case of land the authors model the decision to replace durable capital when intensity is variable decisions of this type include land redevelopment decisions where the density of residential or commercial development is a choice variable as well as capital replacement decisions where capacity is variable the authors provide a general yet simple formation of the problem using an optimal stopping framework they characterize the value of the project the timing of investment and the intensity of development the authors show that intensity interacts in important ways with timing taxes and project values the ability to vary intensity raises hurdle rents and delays development decisions copyright 1994 by american economic association

environmental constraints and sigmoid utility implications for value risk sensitivity and social status abstract friedman and savage journal of political economy 4 1948 279 proposed sigmoid utility theory to model the relationship between social class and risk sensitivity their proposal has not been explicitly modeled to allow for full testing of the concept we argue that sigmoid utility arises naturally from boundary conditions imposed by finite environmental resources that engender competition we also present a sigmoid formulation and examine its empirical warrant by considering economic data from anthropological historical and sociological cases studies standard risk sensitivity measures such as arrow pratt and downside risk aversion provide expectations for which individuals are most risk prone insights from prospect theory indicate under what conditions sigmoid utility may be most useful we consider the implications of environmental constraint in the context of the sigmoid model as an explanation for the nature of political turmoil during the collapse of maya civilization ca ad 850 we consider the role lack of constraint played in the american revolution and we explore how sigmoid utility can enrich our understanding of contemporary american voting behavior

valuing school quality better transport and lower crime evidence from house prices housing prices within urban areas exhibit highly localized variation that cannot be explained solely by differences in the physical attributes of dwellings we consider the role of local amenities and disamenities in generating price variation within urban areas focusing on three highly policy relevant urban issues transport accessibility school quality and crime our survey of the recent empirical literature highlights what is known and what is not known on these issues and considers the relevance and reliability of this evidence for policy design and evaluation although there are serious empirical challenges we argue that research on housing values based on careful research designs can offer credible estimates of the social value of place specific attributes and amenities

the mortgage interest deduction and its impact on homeownership decisions abstract this paper examines the impact of the combined u s state and federal mortgage interest deduction mid on homeownership attainment using data from 1984 to 2007 and exploiting variation in the subsidy arising from changes in the mid within and across states over time we test whether capitalization of the mid into house prices offsets the positive effect on homeownership we find that the mid boosts homeownership attainment only of higher income households in less tightly regulated housing markets in more restrictive places an adverse effect exists the mid is an ineffective policy to promote homeownership and improve social welfare

mean variance skewness portfolio performance gauging a general shortage function and dual approach this paper proposes a nonparametric efficiency measurement approach for the static portfolio selection problem in mean variance skewness space a shortage function is defined that looks for possible increases in return and skewness and decreases in variance global optimality is guaranteed for the resulting optimal portfolios we also establish a link to a proper indirect mean variance skewness utility function for computational reasons the optimal portfolios resulting from this dual approach are only locally optimal this framework permits to differentiate between portfolio efficiency and allocative efficiency and a convexity efficiency component related to the difference between the primal nonconvex approach and the dual convex approach furthermore in principle information can be retrieved about the revealed risk aversion and prudence of investors an empirical section on a small sample of assets serves as an illustration

pricing initial public offerings further evidence from germany abstract in a recent article in this review wasserfallen and wittleder pricing initial public offerings evidence from germany european economic review 38 1505 1517 1994 ww provide evidence of the well known underpricing phenomenon for 92 german ipos coming to market in 1961 1987 using a larger sample of 189 firms from 1970 1993 this paper i reassesses the evidence on underpricing in germany after choosing a different risk proxy to avoid potential endogeneity problems and ii provides evidence of long run ipo performance a number of new results emerge stock market returns the macroeconomic climate insider retention rates and inverse offer size all affect underpricing positively over longer horizons german ipos are poor investments losing more than twelve percent over their first three years of trading relative to the market exclusive of the initial underpricing return negative performance is heavily concentrated after the end of ww s sampling period in the post 1987 cohort

knowledge barter in cities abstract since marshall principles of economics 1890 macmillan london it has been common for economists to model knowledge transfers as exogenous spillovers however there are many instances of knowledge transfers that are deliberate and reciprocal this paper models these endogenous knowledge transfers and shows that endogenous knowledge barter is fundamentally different than exogenous spillovers holding city size fixed we show that knowledge transfers may arise as a kind of barter when the value of knowledge is verifiable ex ante knowledge barter can also take place when the value of the knowledge transferred is verifiable only ex post if the interaction is repeated and if discount rates are not too high however the sustainability of knowledge barter depends crucially on city size when city size is large it is easier for an agent who withholds knowledge to go unpunished this means that the sustainable level of knowledge barter is smaller in a large city this result suggests that the knowledge agglomeration relationship is non monotonic the loss of cooperative knowledge exchange that occurs as city size grows can be a limit to optimum and equilibrium city sizes

the stochastic city abstract this paper analyzes a simple model of an urban area with growth and uncertainty household income rents and prices for land follow stochastic processes even though investors are risk neutral uncertainty affects both land rents and land prices in equilibrium because the conversion of land from agricultural to urban use is irreversible growth on the other hand affects urban and agricultural land prices but not the level of rents we show that uncertainty i delays the conversion of land from agricultural to urban use ii imparts an option value to agricultural land iii causes land at the boundary to sell for more than its opportunity cost in other uses and iv reduces equilibrium city size

the speed of information revelation in a financial market mechanism abstract the paper studies the rate at which dispersed private information about the value v of a risky financial asset is incorporated into prices in an information adjustment mechanism the mechanism in the presence of competitive market makers aggregates the information of risk averse agents at a rate of n 1 2 where n is the number of rounds of the adjustment process without market makers convergence of prices to v is much slower in any case the asymptotic precision of prices is negatively related to the degree of risk aversion and the amount of noise in the system journal of economic literature classification numbers d83 g14

signalling by underpricing in the ipo market abstract empirical evidence suggests the existence of hot issue markets for initial public offerings in certain periods and in certain industries new issues are underpriced and rationing occurs this paper develops a model consistent with this observation which assumes the firm itself best knows its prospects in certain circumstances firms with the most favorable prospects find it optimal to signal their type by underpricing their initial issue of shares and investors know that only the best can recoup the cost of this signal from subsequent issues

skewness preference and portfolio choice one of the virtues of parameter preference models presented in general form in rubinstein 23 is their empirical content applied models of financial theory rely heavily on the mean variance mv version of parameter preference as spelled out in samuelson 25 mv models are adequate with compact distributions of returns and when portfolio decisions are made frequently so that the risk parameter becomes sufficiently small

do urban neighborhoods benefit from homeowners evidence from housing prices homeownership is heavily subsidized in most countries the adverse effects of this policy on economic efficiency and income distribution are well documented in the economics literature the main argument in favor of subsidizing homeownership is that it creates positive externalities that offset these adverse effects in this paper we test whether homeowners create positive externalities that capitalize into housing prices in multi storey buildings using semi parametric hedonic regressions with and without instrumental variables we find no evidence of positive externalities although the results with instrumental variables are somewhat imprecise this result is robust to several sensitivity checks and to a relaxation of the identification assumptions of our instrument using set identification

the stock market as a source of capital some lessons from initial public offerings in italy abstract this paper complements the analysis of the decision to go public contained in pagano et al 1995 we compare a larger set of italian initial public offerings including holding companies with size matched private companies even in this larger sample we find evidence that 1 i the new equity capital raised upon listing is not used to finance subsequent investment and growth 2 ii going public reduces the cost of credit 3 iii it is often associated with equity sales by controlling shareholders and is followed by a higher turnover of control than for other companies a novel finding is that the funds raised are used to purchase stakes in other companies and other financial assets

bank failure contagion in historical perspective abstract bank failures are contagious due to the lack of bank specific information depositors who lack financial information on individual banks make withdrawal decisions based on the condition of the banking system as a whole a high ratio of bank failures then signals an adverse condition within the banking sector and triggers systemwide bank runs this paper looks at bank panics in u s history and shows the importance of solvency information specific to individual banks the major empirical finding is that the government or banks stopped bank panics mainly by providing financial information on banks

how to protect future generations using tax base restrictions this paper studies how to protect future generations from expropriation and to induce optimal investment in intergenerational public goods ipgs by introducing constitutional restrictions on the tax base the type of tax base restrictions that we consider places limits on the tax instruments that the government can use to raise revenue but not on the level of expenditures or debt we show that the introduction of a constitutional amendment requiring that ipgs and debt be financed with land taxes makes intergenerational expropriation impossible and for many cases of interest induces optimal investment in ipgs we also show that a weaker constitutional amendment requiring that ipgs be financed with land taxes but imposing no restrictions on how to finance the debt has a positive impact on ipgs but not on expropriation the paper also studies the political feasibility of these reforms we show that the first reform is not politically feasible since it hurts current generations but the weaker reform can induce a pareto improvement jel d1 d7

survey evidence on diffusion of interest and information among investors abstract questionnaire surveys of institutional and individual investors were undertaken to learn about patterns of communications it was found that direct interpersonal communications are very important in investor decisions questions elicited what fraction of investors were unsystematic and allowed themselves to be influenced by word of mouth communications or other salient stimuli randomly sampled investors were studied as well as investors in stocks whose price had recently increased dramatically contagion or epidemic models of financial markets are proposed in which interest in individual stocks is spread by word of mouth the survey evidence is interpreted as supporting such models

edge versus center finding common ground in the capitalization debate abstract a continuing debate questions whether capitalization of taxes and public services into house price occurs the current study argues for an inverse relationship between housing supply elasticity and capitalization rates a sample is split into houses on the interior and edge of the urban area capitalization of schooling and crime occurs everywhere but it is weaker toward the edge of an urban area where housing supply elasticities and developer activity are greater tax results are less robust but the capitalization rates of crime and school quality are roughly twice as strong on the interior than on the urban fringe

sequential sales learning and cascades when ipo shares are sold sequentially later potential investors can learn from the purchasing decisions of earlier investors this can lead rapidly to cascades in which subsequent investors optimally ignore their private information and imitate earlier investors although rationing in this situation gives rise to a winner s curse it is irrelevant the model predicts that 1 offerings succeed or fail rapidly 2 demand can be so elastic that even risk neutral issuers underprice to completely avoid failure 3 issuers with good inside information can price their shares so high that they sometimes fail 4 an underwriter may want to reduce the communication among investors by spreading the selling effort over a more segmented market consider a scenario in which an issuer is selling a new security of uncertain value for example an ipo initial public offering of stock or high yield debt through an underwriter the s e c has banned variable price sales while the value of this new security is highly uncertain to individual market participants investors hold perfectly accurate information when aggregated moreover there are many potential investors and a small number of these investors can jointly determine the value of the firm or its project with high precision it would seem that in this scenario underpriced offerings would succeed and overpriced offerings would fail nevertheless this paper shows that if the distribution channels of invest ment banks are limited underpriced offerings can fail and overpriced offer ings can succeed with limited distribution channels it takes the under writer time to approach interested investors therefore later investors can observe how well an offering has sold to date or at least how successful it has sold relative to offerings previously undertaken by this underwriter

multimarket trading and market liquidity when a security trades at multiple locations simultaneously an informed trader has several avenues in which to exploit his private information the greater the proportion of liquidity trading by large traders who can split their trades across markets the larger is the correlation between volume in different markets and the smaller is the informativeness of prices we show that one of the markets emerges as the dominant location for trading in that security when informed traders can use their information for more than one trading period the timely release of price information by market makers at one location adversely affects the profits informed traders expect to make subsequently at other locations market makers competing to offer the lowest cost of trading at their location consequently deter informed trading be voluntarily making the price information public and by cracking down on insider trading article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

why bank credit policies fluctuate a theory and some evidence in a rational profit maximizing world banks should msdntain a credit policy of lending if and only if borrowers have positive net present value projects why then are changes in credit policy seemingly correlated with changes in the condition of those demanding credit this paper argues that rational bank managers with short horizons will set credit policies that influence and are influenced by other banks and demand side conditions this leads to a theory of low frequency business cycles driven by bank credit policies evidence from the banking crisis in new england in the early 1990s is consistent with the assumptions and predictions of the theory

alternative mechanisms for corporate control we examine performance and management characteristics of fortune 500 firms experiencing one of three types of control change internally precipitated management turnover hostile takeover and friendly takeover we find that firms experiencing internally precipitated management turnover perform poorly relative to other firms in their industries but are not concentrated in poorly performing industries in contrast targets of hostile takeovers are concentrated in troubled industries there is also weaker evidence that hostile takeover targets underperform their industry peers we interpret this evidence as consistent with the idea that the board of directors is capable of firing managers whose leadership leads to poor performance relative to industry but that an external challenge in the form of a hostile takeover is often required when the whole industry is in decline the evidence also indicates that firms run by a member of the founding family are less likely to experience either internally precipitated top management turnover or a hostile takeover on the other hand firms whose top management team is dominated by a single relatively young top executive while lacking in internal discipline are more likely to experience a hostile takeover this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item

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

geometric representation of the mean variance skewness portfolio frontier based upon the shortage function the literature suggests that investors prefer portfolios based on mean variance and skewness rather than portfolios based on mean variance mv criteria solely furthermore a small variety of methods have been proposed to determine meanvariance skewness mvs optimal portfolios recently the shortage function has been introduced as a measure of e ciency allowing to characterize mvs optimal portfolios using non parametric mathematical programming tools while tracing the mv portfolio frontier has become trivial the geometric representation of the mvs frontier is an open challenge a hitherto unnoticed advantage of the shortage function is that it allows to geometrically represent the mvs portfolio frontier the purpose of this contribution is to systematically develop geometric representations of the mvs portfolio frontier using the shortage function and related approaches

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