asset pricing with loss aversion using standard preferences for asset pricing has not been very successful to match asset price characteristics such as the risk free interest rate equity premium and the sharpe ratio to time series data behavioral nance has recently proposed more realistic preferences such as preferences with loss aversion to model asset pricing research has now started to explore the implications of behaviorally founded preferences for asset price characteristics encouraged by some studies of benartzki and thaler 1995 and barberis et al 2001 we study asset pricing with loss aversion in a production economy we here employ a stochastic growth model and use a stochastic version of a dynamic programming method with adaptive grid scheme to compute the above mentioned asset price characteristics of a model with loss aversion in preferences as our results show a model with loss aversion performs considerably better than pure consumption based asset pricing models

a status based model of market competition this article explores the significance of status processes for generating and reproducing hierarchy among producers in a market it develops a conception of a market as a status order in which each

recruitment based competition between industries a community ecology because entrepreneurs often must recruit labor in order to launch their ventures the labor market is a potential source of constraint in the entrepreneurial process moreover competition in the labor market likely does not end at the boundaries of the product market as industries overlap in their needs for labor i use an organizational ecology framework to examine how founding rates in an industry vary with the degree of competition with other industries for labor and thereby provides evidence of recruitment based competition between industries in a community ecology the extent of recruitment based overlap between industries is inferred from data on flows of employees within and between industries analyses of founding rates in eighty four industries in denmark over the period 1980 1991 suggest that new firms are less likely to appear in industries that occupy crowded regions of the labor market copyright 2004 oxford university press

an adjustment cost model of asset pricing an intertemporal asset pricing model is constructed incorporating an explicit adjustment cost technology the capital stock can be altered by investment but there are adjustment costs whi ch lower the marginal return of investment in a model involving an i nfinitely lived representative agent it is shown how changes in adju stment costs influence asset prices the term structure of real inter est rates and risk premia the results suggest that adjustment cost by causing an intertemporal consumption substitution raises the pri ces of risky stocks and risk premia and reduces long term real intere st rates copyright 1987 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

search sorting and urban agglomeration studies have suggested that urban agglomeration enhances productivity by facilitating the firm worker matching process this article develops a model that formalizes this notion and demonstrates that when firm capital and worker skill are complementary in production urban agglomeration will tend to generate more efficient yet segregated matches as a result not only will local market size be positively associated with average productivity it will also generate greater between skill group wage inequality and a higher expected return to skill acquisition recent data from the counties and metropolitan areas of the united states is consistent with each of these implications

a note on a new class of solutions to dynamic programming problems arising in economic growth abstract we provide exact solutions for a class of stochastic dynamic programming problems in growth theory involving pairs of constant relative risk aversion utility functions and ces technologies this generalizes the solutions for the well known case of logarithmic utility coupled with cobb douglas production functions we are also able to incorporate depreciation schemes through a vintage capital approach

corporate demography and income inequality we examine the relationship between income inequality and corporate demography in regional labor markets and specify two mechanisms through which the number and diversity of employers in a labor market affect wage dispersion vertical differentiation or variation in the ability of organizations of a particular kind to benefit from labor inputs amplifies inequality through quality sorting as the most productive employees in a particular domain pair with the most productive employers increasing horizontal differentiation variation in the kinds of organizations reduces inequality as individuals can more easily find firms interested in their distinctive attributes and talents our analysis of danish census data provides support for each thesis increased numbers of organizations operating within an industry in a region a proxy for vertical differentiation increases wage dispersion in that industry region variation in wages however declines with increased horizontal differentiation among employers th

the genesis of positive economics and the rejection of monopolistic competition theory a methodological debate in the methodology of positive economics 1953 milton friedman linked the adoption of a falsificationist methodology to the rejection of monopolistic competition as a valid assumption thus elaborating a point made earlier by george stigler in monopolistic competition in retrospect 1949 both failed to demonstrate that the alternative assumption of perfect competition would perform better under falsificationist rules these rules themselves are an expression of the ambition to establish an economic science rather than a convincing framework for research monopolistic competition theory became the main target of attack as it highlighted the problematic nature of empirical research interested in perfectly generalizable results

improving patent valuations for management purposes validating new indicators by analyzing application rationales abstract this paper analyzes the validity of so far untested indicators of patent value to enhance the quality of patent assessments using indicators at the corporate level the article expands the theory by eliciting patent attorneys filing rationales to maximize profits from protecting intellectual property to inspire the computation of new value indicators including patent full texts then based on a newly compiled data set consisting of 813 ep patents the probability of an opposition against a patent is modeled by established and new value indicators the results show that accelerated examination requests and qualified word counts enhance the quality of existing valuation methods

output growth the real wage and employment fluctuations this paper is an attempt to contribute to the integration of business cycle analysis with long term growth a real business cycle model with endogenous growth is developed and estimated with u s data in the present framework wage movements do not have to be transitory to generate fluctuations in labor effort the reduced form is a constrained bivariate output hours or real wage hours vector autoregressive process the bivariate setup provides a useful framework for analyzing the persistence of output fluctuations given that the theory implies that hours of work contain information about future output movement copyright 1991 by american economic association

community and capital in entrepreneurship and economic growth we argue that social integration in the sense of within community interconnectedness and venture capital have a complementary relationship in fostering innovation entrepreneurship and economic gr

ethnic matching in the u s venture capital market we document the role of entrepreneurial founder and venture capital vc partner co ethnicity in shaping investment relationships co ethnicity increases the likelihood that a vc firm invests in a company conditional on investment co ethnicity strengthens the degree of involvement by raising the likelihood of vc board of director involvement and increasing the size and scope of investment these results are consistent with trust and social network based mechanisms shared ethnicity in our sample is associated with worse investment outcomes as measured by investment liquidity however which our results suggest might stem from looser screening and or corporate governance

the equity premium in brock s asset pricing model abstract in this paper we combine dynamic programming methods with projection methods for solving stochastic growth models as an application of these methods we solve brock s asset pricing model with a variety of parameterizations we focused on finding parameterizations that result in an equity premium that is high relative to the variation in consumption we show both analytically and numerically that the equity premium can be higher in a production based asset pricing model than it is in the consumption based asset pricing model even when the real output level is the same in both models

economic dualism a critical review in this paper we examine the model underlying the dual economy approach to labor market segmentation we provide a specification of the components of the model as well as the linkages between components this construction of the underlying model allows us to evaluate it systematically as a model to consider and to evaluate each component and linkage separately while we conclude that there are several important contributions to retain from the dual approach including the insight that capital structure conditions labor market outcomes we argue that it is inadequate for sustaining theoretical and empirical development as a new starting point for the study of economic and labor market segmentation we suggest a resource perspective which retains insights from the dual approach but avoids its overly restrictive assumptions

does diversity pay race gender and the business case for diversity the value in diversity perspective argues that a diverse workforce relative to a homogeneous one is generally beneficial for business including but not limited to corporate profits and earnings this is in contrast to other accounts that view diversity as either nonconsequential to business success or actually detrimental by creating conflict undermining cohesion and thus decreasing productivity using data from the 1996 to 1997 national organizations survey a national sample of for profit business organizations this article tests eight hypotheses derived from the value in diversity thesis the results support seven of these hypotheses racial diversity is associated with increased sales revenue more customers greater market share and greater relative profits gender diversity is associated with increased sales revenue more customers and greater relative profits i discuss the implications of these findings relative to alternative views of diversity in the workplace

self employment and the earnings of immigrants we examine the question of the economic returns to immigrants engaged in self employment based on samples of four entrepreneurial immigrants plus control samples of blacks and whites from the 1980 u s public use microdata sample we find large differences in the net effect of self employment depending on the use of a linear absolute dollar values or loglinear relative returns form we examine various explanations for the discrepancy and identify the role of outliers as significant the loglinear form fits the data better but at the cost of obliterating substantively important information namely the preponderance of the self employed among positive outliers effects of excluding the latter from the linear form and the theoretical and policy implications of alternative specifications of the earnings equation are examined excerpt

the history of the theory of the firm from marshall to robinson and chamberlin the source of positivism in economics a widely believed story in the folklore of the economics profession is that the theories of perfect competition and monopoly were well established from the time of marshall or perhaps pigou s economics of welfare and that the role of imperfect or monopolistic competition theory was to fill in the middle ground between these extremes it will be shown in this paper that the folklore conflicts with the historical evidence robinson and chamberlin created the theory of perfect competition in the course of inventing imperfect and monopolistic competition theory robinson and chamberlin between them were concerned with the same issues that concerned marshall the difference is that robinson and chamberlin derived their analyses from a few clear axioms while marshall sought to develop his analysis from a well informed but necessarily impressionistic description of actual business behaviour and dynamic processes along with the introduction of indifference analysis to english speaking economists by hicks and allen robinson and chamberlin gave the theory of value and distribution a complete and logically consistent axiomatic basis because their axioms relating to business motivation and behaviour were amenable to empirical verification the work of robinson and chamberlin rendered the theory of value and distribution open to a new empirical criticism it will be argued that the widespread acceptance of friedman s 195 3 positive methodological position was a necessary response to these empirical criticisms if the new axiomatic foundations of the theory of value and distribution were to be as secure as those previously provided by marshall

stock prices and fundamentals a macroeconomic perspective this paper compares the predictions for the market value of firms from the gordon growth model with those from a dynamic general equilibrium model the predictions for movements in the market value of firms following shifts in preferences growth prospects and risk are quantitatively and qualitatively different across the models while previous research illustrated how a drop in the required return or an increase in the growth rate of the economy can explain the run up in equity values in the 1990s in the gordon growth model the general equilibrium model suggests that such results are misleading

job relocation and the racial gap in unemployment in detroit and chicago 1980 to 1990 the spatial mismatch hypothesis argues that residential segregation and job decentralization combine to adversely affect the employment opportunities of minorities while employment is increasingly located outside of central cities residential segregation prevents minorities from moving closer to suburban jobs although this hypothesis has intuitive appeal there is little consensus regarding its empirical validity this study 1 constructs detailed geographic measures of changes in employment opportunities 2 estimates a fixed effects model of changes in the unemployment rate over time and 3 accounts for spatial correlation in the error term neighborhood level employment data from 1980 and 1990 are used to measure changes in the distance to jobs from census tracts in the detroit and chicago metropolitan areas in both cities the decentralization of employment and the loss of manufacturing jobs resulted in substantial changes in the spatial distribution of employment the empirical results indicate that a decline in the spatial proximity to employment is associated with an increase in the unemployment rate for blacks

strong ties weak ties and islands structural and cultural predictors of organizational innovation how does the tendency of entrepreneurs to engage in innovation relate to their structural and cultural embeddedness using micro data on entrepreneurial teams and the organizational innovations they attempt to develop this article presents a predictive model of creative action to address this question capacity for creative action is seen to be a function of the ability of entrepreneurs to i obtain non redundant information from their social networks ii avoid pressures for conformity and iii sustain trust in developing novel and potentially profitable innovations probit analyses of over 700 organizational startups suggest that these mechanisms exercise effects on innovation via the network ties and enculturation of entrepreneurs

an essay on the foundations of friedman s methodology milton friedman s famous essay on methodology 1953 pp 3 43 has been presented as an instrumentalist argument for instrumentalism boland 1979 although friedman has stated that such characterization of his methodology is entirely correct he also says 1979 that his views on methods and the philosophy of economics can be aligned with those of the philosopher karl popper many students of the philosophy of science would be possibly shocked by such a claim since popper has so often criticized and rejected both instrumentalism and logical positivism 1965 thus against such background we present our examination of friedman s claim evidence which we gathered to determine the extent of the relationship between friedman s methodology and popper s view of science will be presented it will be argued that to a degree friedman s claim can be supported the major point is that friedman identifies with popper for two reasons 1 both friedman and popper reject positivism 2 friedman and his followers tend to argue indirectly in advancing a view by criticizing its alternatives presumably we either accept positivism for example paul samuelson carl hemple rudolph carnap among others or we do not obviously this line of argument considers only two among a possibly larger number of options a confrontation of competing views as it were as found in friedman s view of hypothesis testing a minor point is that friedman does not see popper dismissing instrumentalism completely in this he is correct since popper only criticizes instrumentalism as a philosophy of science while accepting it as a methodology for social policy except for a brief statement that factual evidence can never prove a hypothesis it can only disprove it 1953 p 9 nothing in friedman s essay seems to depend on popper s philosophy of science so if there is an alignment of friedman s view with popper s it will have to be found separately from the famous essay thus we examine the prospect with reference to his academic and research backgrounds including examples from his work and to his association with popper a corollary purpose of our essay is to indicate how friedman s view of the methodology of positive economics depends on his acceptance of some but perhaps not all of popper s philosophical discussions of the nature and purpose of science as we indicate friedman s early orientation in methods had no immediate background in established economics that the main and crucial elements of friedman s work came from outside may be gleaned from a review of these elements and their antecedents this emphasis reveals the following 1 that friedman has been incorrectly identified with logical positivism warren gramm pp 169 171 175 samuelson 1963 pp 82 83 a doctrine about the unity of science as formulated in vienna in the 1920 s and 2 that friedman is much less aligned than commonly presumed with the views of his chicago mentors in friedman s economics theories are partly arguments for alternative policies and or social reform an interdependent system of analytic constructions rather than isolated construction in economics is used to generate hypotheses and for predicting the effects of alternative policies contrary to the conventional views of statistical induction and logical deductions from known true assumptions as dealt with elsewhere boland 1979 pp 512 13 1981 the purpose of economic theory for friedman is prediction for purposes of testing and evaluating alternative policies these policies over friedman s career the university of florida and simon fraser university respectively we thank john chant stephen easton herbert grubel zane spindler and james f o conner for comments on an early draft milton friedman was cooperative in answering questions we raised we alone are responsible for the final product

identification of endogenous social effects the reflection problem this paper examines the reflection problem that arises when a researcher observing the distribution of behaviour in a population tries to infer whether the average behaviour in some group influences the behaviour of the individuals that comprise the group it is found that inference is not possible unless the researcher has prior information specifying the compisition of reference groups if this information is available the prospects for inference depend critically on the population relationship between the variables defining reference groups and those directly affecting outcomes inference is difficult to implossible if these variables are functionally dependent or are statistically independent the prospects are better if the variables defining reference groups and those directly affecting outcomes are moderately related in the population

the kuznets curve and the great u turn income inequality in u s counties 1970 to 1990 the authors examine the determinants of inequality in the distribution of family income in approximately 3 100 counties of the united states in 1970 1980 and 1990 such a study provides a window on global trends in social inequality during the period which spans the tail end of the kuznets curve and the more recent upswing in income inequality results from random effects regression models that control for unmeasured heterogeneity among states reveal the continued importance of the kuznetsian pattern of declining inequality with economic development a positive effect of urbanization on inequality a declining positive impact of sector dualism an increasing positive effect of educational heterogeneity and a persistent effect of racial dualism several variables associated with the recent upswing in inequality have significant effects female labor force participation negative female headed households positive percent of the population over age 65 changes from positive to negative over the period manufacturing employment negative and unemployment ambiguous they also discuss methods of estimating the gini coefficient for income inequality at the county level and measures of sector farm nonfarm dualism racial black white dualism and educational heterogeneity

separate and unequal occupation establishment sex segregation and the gender wage gap the authors report the first large scale empirical investigation of within job wage differences between men and women in the same occupation and establishment using data first on blue collar and clerical employees from 16 u s industries in 1974 83 and second on employees in 10 professional and administrative occupations the authors report three findings first wage differences at the occupation establishment level were small even without controls for individual level characteristics hence within job wage discrimination was much less important than occupation establishment segregation for observed wage differences second establishment segregation was an important cause although not as important as occupational segregation of wage differences third establishment segregation was extensive as was occupational segregation

venture capital entrepreneurship and economic growth abstract using a panel of u s metropolitan areas we find that increases in the supply of venture capital positively affect firm starts employment and aggregate income our results remain robust to a variety of specifications including ones that address endogeneity the estimated magnitudes imply that venture capital stimulates the creation of more firms than it funds which appears consistent with two mechanisms first would be entrepreneurs anticipating financing needs more likely start firms when the supply of capital expands second funded companies may transfer know how to their employees thereby enabling spin offs and may encourage others to become entrepreneurs through demonstration effects

complex nonlinear dynamics and computational methods in the summer of 1997 berc rustem asked us whether we would be interested in editing a special issue of the journal of economic dynamics control on complex nonlinear dynamics and computational methods we were enthusiastic about the idea and soon started soliciting papers on these themes this issue contains 19 contributions by some experts in the eld and should provide the reader with an impression of the current s dechert 1996 goodwin 1990 hommes 1991 lorenz 1993 medio 1992 puu 1997 rosser 1991 and de vilder 1995 for more discussions concerning this controversy is the main source of economic uctuations to be found in exogenous random shocks to an inherently stable linear economic system or can nonlinear economic laws of motion explain a signi cant part of observed uctuations in output growth rates capital stocks inventories stock prices exchange rates and other economic or nancial variables this controversy dates back to the 1930s and the 1940s when frisch slutsky and tinbergen a o proposed their propagation mechanism subject to exterior random impulses as a way of modeling business cycles in contrast e g kaldor goodwin and hicks argued that the

real business cycles in this paper we demonstrate how certain very ordinary economic principles lead maximizing individuals to choose consumption production plans that display many of the characteristics commonly associated with business cycles our explanation is entirely consistent with i rational expectations ii complete current information iii stable preferences iv no technological change v no long lived commodities vi no frictions or adjustment costs vii no government viii no money and ix no serial dependence in the stochastic elements of the environment we also provide a completely worked out example of the type of artificial economy we have in mind the time series properties of the example exhibit some major features of observed business cycles although this type of model may not be capable of explaining all of the regularities in actual business cycles we believe that it provides a useful well defined benchmark for assessing the relative importance of factors e g monetary disturbances

explaining wage inequality in telecommunications services customer segmentation human resource practices and union decline this study examines factors related to within occupation wage inequality among service and sales workers in the telecommunications industry the author draws on a 1998 survey of a nationally representative sample of 354 service and sales centers in the industry to examine the importance of management practices and union institutions in shaping wage variation the results strongly indicate that business strategies of customer segmentation and human resource practices explain variation in wages over and above that explained by the human capital of the work force in addition despite extensive deregulation and de unionization of the industry the union wage premium is 22

industrial shifts skills levels and the labor market for white and black males in this paper we estimate the effects of industrial shifts in the 1970s and 1980s on the wages and employment of black and white males we use micro census data for 52 msa s and estimate effects separately by age and education group the results show that industrial shifts did reduce demand for blacks and for less skilled males in the 1970s and 1980s demand shifts away from manufacturing in particular reduced employment and wages for black and white males while the magnitudes of these effects are fairly small for many groups they can account for one third to one half of the employment decline for less educated young blacks in the 1970s these results imply fairly large effects on the earnings of less skilled males in the 1980s as well authors

the road taken origins and evolution of employment systems in emerging companies excerpt drawing on a unique archive of qualitative and quantitative data describing 100 bay area high technology firms within their first decade this paper examines the models of employment relations espoused by company founders and bow those models shaped the evolution of human resource management within their organizations information gleaned from interviews suggests that founders and others involved in designing and launching these companies had blueprints for the employment relation that varied along three key dimensions the primary basis of employee attachment and motivation the primary means for controlling and coordinating work and the primary criterion emphasized in selection based on combinations of these three dimensions firms in our sample cluster fall into one of four distinct types which we label the star factory engineering and commitment models multivariate statistical analyses document how the founder s employment model shaped the subsequent adoption and timing of various human resource policies and documents over these companies early histories as well as the speed with which the first full time human resource manager was appointed the findings are strongly suggestive of complementarities and a tendency toward internal consistency among dimensions of human resource management and of strong path dependence in the evolution of employment systems in organizations some implications of these findings for transactions cost perspectives on the employment relationship are discussed

do capm results hold in a dynamic economy a numerical analysis in this research we use the projection method reported by judd to find numerical solutions to the euler equations of a stochastic dynamic growth model the mode1 that we solve is brock s asset pricing model for a variety of parameterizations of the production functions using simulated data from the model conjectures which are not analytically tractable can be verified we show that the market portfolio is mean variance efficient in this dynamic context we also show a result that is not available from the static capm theory the efficient frontier shifts up and down over the business cycle

millionaire migration and taxation of the elite evidence from administrative data a growing number of u s states have adopted millionaire taxes on top income earners this increases the progressivity of state tax systems but it raises concerns about tax flight elites migrating from high tax to low tax states draining state revenues and undermining redistributive social policies are top income earners transitory millionaires searching for lower tax places to live or are they embedded elites who are reluctant to migrate away from places where they have been highly successful this question is central to understanding the social consequences of progressive taxation we draw on administrative tax returns for all million dollar income earners in the united states over 13 years tracking the states from which millionaires file their taxes our dataset contains 45 million tax records and provides census scale panel data on top income earners we advance two core analyses 1 state to state migration of millionaires over the long term and 2 a sharply focused discontinuity anal