political holes in the economy the business network of partisan firms in hungary this article redirects attention from the question of how business ties have an impact on politics to the question of how political ties have an impact on business specifically do divisions within the field of politics become divisions in the field of business networks to study co evolution of political and economic fields we conducted a historical network analysis of the relationship between firm to party ties and firm to firm ties in the hungarian economy we constructed a dataset of all senior managers and boards of directors of 1 696 corporations and the complete set of all political officeholders from 1987 to 2001 findings from our field interviews and dyadic logistic regression models demonstrate that director interlocks depend to a significant extent on political affiliations although the political and economic fields have been institutionally separated firms and parties have become organizationally entangled firms of either left or right political affiliation exhibit a preference for par

mueller s profits in the long run mueller uses a measure of persistent or long run interfirm differences in profitability obtained by estimating a separate time series model for each firm to reexamine this question his results are quite different from those obtained from cross sections of annual profit rates and the differences shed new light on old issues moreover in describing and analyzing the separate profit series and in comparing the cross sectional with the time averaged results mueller focuses attention on the dynamics of the profit process and the relative importance of the different factors that affect it as a result the careful reader will come away from this book with a set of questions that just might lie at the heart of the debate about profitability movements among manufacturing firms and that ought at least in part to be analyzable with currently available tools and data i have divided my review into four sections first i outline mueller s model and consider its relationship to other recent work on profitability differences next i summarize mueller s empirical results both the more descriptive time series results and the estimates of his model and then i provide a brief comparison with the results schmalensee 1985 and ravenscraft 1983 obtain on the determinants of cross sectional profitability differences any ultimate reconciliation of the different findings and any more detailed analysis of their implications will require a deeper understanding of the factors causing profitability movements over time the last section of this review considers the dynamic issues on which mueller and his results focus attention and discusses the models that seem appropriate for analyzing them it is clear that further empirical work on these issues must make some allowance for mergers and acquisitions on the one hand and bankruptcies and liquidations on the other the review concludes by explaining why this is so and by considering how it might be done

identifying the efficiency status in network dea abstract data envelopment analysis dea is commonly employed to evaluate the efficiency performance of a decision making unit dmu that transforms exogenous inputs into final outputs in such a black box dea approach details of an internal production process of the dmu are typically ignored and hence the locations of inefficiency are not adequately provided in view of this dea researchers have recently developed various network approaches by looking into the black box where the inputs that enter the box and the outputs that come out of it are only considered however most of these network approaches evaluate divisional efficiency by using an optimal solution of their respective optimization problem if such an optimal solution is used in the case when there are multiple optima then managerial guidance based on this solution alone may be inappropriate because more appropriate targets from the viewpoint of management may be ignored taking this fact into account therefore we propose a network approach for identifying the efficiency status of each dmu and its divisions this approach provides a practical computational procedure

getting deals done the use of social networks in bank decision making economic actors confront various forms of uncertainty making decisions and how they deal with these obstacles may affect their success in accomplishing their goals this study examines the means by which relationship managers in a major commercial bank attempt to close transactions with their corporate customers it is hypothesized that under conditions of high uncertainty bankers will rely on colleagues with whom they are strongly tied for advice on and support of their deals drawing on recent network theory it is also hypothesized that transactions in which bankers use relatively sparse approval networks are more likely to successfully close than are transactions involving dense approval networks both hypotheses are supported bankers are faced with a strategic paradox their tendency to rely on those they trust in dealing with uncertainty creates conditions that render deals less likely to be closed successfully this paradox represents an example of unanticipated consequences of purposive social action

effects of family background on earnings and returns to schooling evidence from brazil we investigate whether omitted family background variables are responsible for high returns to schooling estimated in brazil returns to schooling fall by about one third when parental schooling is added to wage equations surprisingly the schooling of fathers in law has larger effects on wages than the schooling of fathers on the basis of a model of assortative mating we interpret this as evidence that parental characteristics represent unobservable worker attributes rather than nepotism in the labor market we conclude that the family background bias in returns to schooling is modest and need not imply returns to family connections

how late to pay understanding wage arrears in russia we organize an empirical analysis of russian wage arrears around hypotheses concerning incentives for firms to pay late and for workers to tolerate late payment nationally representative household panel data matched with employer data show that arrears are positively related to firm age size state ownership and declining performance constrained multinomial logit estimates reveal intrafirm variation related to job tenure and small shareholdings in the firm wage arrears unlike wage cuts have a theoretically ambiguous effect on workers quit behavior and we show empirically that the effect varies negatively with the extent of the practice in the local labor market

economies of scale and barriers to entry dixit has recently presented a model in which established firms select capacity to discourage entry but cannot employ threats they would not rationally execute after entry entry deterrence in a slight modification of this model involves the classical limit price output under linear or concave demand however the capital cost of a firm of minimum efficient scale is an upper bound on the present value of the monopoly profit stream that can be shielded from entry it is argued that this suggests the general unimportance of entry barriers erected by scale economies

economic transformation and income inequality in urban china evidence from panel data using panel data of 4 730 urban residents drawn from 20 cities in china this article examines changes in income determinants between the prereform and reform eras to guide this empirical study a conceptual model is developed that emphasizes the coevolution of politics and markets to synthesize theoretical ideas in the recent debate on the transformation of state socialist societies the findings show significant changes in returns to education and in the rise of private hybrid firms in the reform era there is also strong evidence of institutional persistence in returns to positional power and in the organizational hierarchy these findings reveal multifaceted processes of transformation that call for more sophisticated theoretical models and in depth institutional analyses

exploiting ergodicity in forecasts of corporate profitability abstract theory suggests that competition tends to equalize profit rates through the process of capital reallocation and numerous studies have confirmed that profit rates are indeed persistent and mean reverting recent empirical evidence further shows that fluctuations in the profitability of surviving corporations are well approximated by a stationary laplace distribution here we show that a parsimonious diffusion process of corporate profitability that accounts for all three features of the data achieves better out of sample forecasting performance across different time horizons than previously suggested time series and cross sectional models as a consequence of replicating the empirical distribution of profit rates the model prescribes a particular strength or speed for the mean reversion of all returns which leads to superior forecasts of individual time series when we exploit information from the cross sectional collection of firms the new model should appeal to managers analysts investors and other groups of corporate stakeholders who are interested in accurate forecasts of profitability to the extent that mean reversion in profitability is the source of predictable variation in earnings our approach can also be used in forecasts of earnings and is thus useful for firm valuation

evaluating the environmental efficiency of a two stage system with undesired outputs by a dea approach an interest preference perspective abstract in this study we propose a new dea model to evaluate the environmental efficiency of a two stage system with undesired outputs the two stage system consists of two parts a production subsystem and a pollution treatment subsystem different choices for allocating resources to each subsystem represent different interest preferences of decision makers with the production subsystem corresponding to short term interests and the pollution treatment subsystem corresponding to long term interests based on a proposed new dea model three theorems are established to show the relationships between the interest preference parameter and the change of efficiency scores an empirical analysis was conducted using the data of 30 provinces and municipalities eight regions of china the empirical results show the effectiveness of the proposed model and the usefulness of the theorems for the real world data optimal efficiency rankings of the eight regions are provided and the efficiency rankings truly reflect the current environmental situations of these eight regions to examine the economic impacts and facilitate sustainable development we also analyze the shadow prices for undesired outputs corresponding implications of the empirical analysis are also discussed

hazards of the market the continuity and dissolution of interorganizational market relationships the authors propose a theory of the market as an intertemporal process that integrates multiple theoretical perspectives using event history methods thery analyze the dissolution of interorganizational market ties between advertising agencies and their clients as a function of three forces competition power and institutional forces the informal rules of exchange institutionalized in the emergence phase of the advertising services market include exclusivity sole source and loyalty infrequent switching they find that most exchange relationships between advertising agencies and their clients are indeed exclusive and most last for several years but competition power and institutional forces support or undermine these rules most institutional forces reduce the risk of dissolution of agency client ties powerful advertising agencies mobilize resources to increase tie stability but powerful clients mobilize resources to increase or decrease stability competition is the weakest market force but it has a consistent and substantial effect on tie dissolution competition always increases the risk of dissolution they conclude that the market is institutionalized as imperfectly repeated patterns of exchange because competition and changing norms about the duration of market ties destabilize market relationships

asset stock accumulation and sustainability of competitive advantage given incomplete factor markets appropriate time paths of flow variables must be chosen to build required stocks of assets that is critical resources are accumulated rather than acquired in strategic factor markets barney barney j 1986 strategic factor markets expectations luck and business strategy management sci october 1231 1241 sustainability of a firm s asset position hinges on how easily assets can be substituted or imitated imitability is linked to the characteristics of the asset accumulation process time compression diseconomies asset mass efficiencies inter connectedness asset erosion and causal ambiguity

industrial eco efficiency in china a provincial quantification using three stage data envelopment analysis abstract the coordinated development of industrialization and the ecological environment is vital to achieve ecological civilization in china integratively considering the economy energy and resources and environment this study aims to measure the industrial eco efficiency of 30 provinces autonomous regions and municipalities in china between 2005 and 2013 a three stage data envelopment analysis dea modeling approach is adopted to eliminate interference of the external environment and statistical noise with industrial eco efficiency measurement the results show that regional industrial eco efficiency in china is affected by the factors of the environmental regulation technological innovation level of economic development and industrial structure after eliminating the impacts of external environment and statistical noise china s national average industrial eco efficiency declines by 30 between 2005 and 2013 the industrial eco efficiency of the 30 provinces increases but at different rates of growth the variation of overall regional industrial eco efficiency is primarily caused by scale efficiency furthermore all the 30 provinces are classified into four groups to interpret the causes of variation and differences of regional industrial eco efficiency in general the management and technology level and the economy of scale of industries should be improved simultaneously even though specific opportunities for industrial eco efficiency improvement vary across provinces in china

the causes of fraud in the financial crisis of 2007 to 2009 evidence from the mortgage backed securities industry the financial crisis of 2007 to 2009 was marked by widespread fraud in the mortgage securitization industry most of the largest mortgage originators and mortgage backed securities issuers and underwriters have been implicated in regulatory settlements and many have paid multibillion dollar penalties this article seeks to explain why this behavior became so pervasive we evaluate predominant theories of white collar crime finding that theories emphasizing deregulation or technical opacity identify only necessary not sufficient conditions our argument focuses instead on changes in competitive conditions and firms positions within and across markets as the supply of mortgages began to decline around 2003 mortgage originators lowered credit standards and engaged in predatory lending to shore up profits in turn vertically integrated mortgage backed securities issuers and underwriters committed securities fraud to conceal this malfeasance and enhance the value of other financial products our result

the conditional nature of embeddedness a study of borrowing by large u s firms 1973 1994 economic and organizational sociologists have increasingly demonstrated that the actions of individuals and firms are affected by the social networks within which they are embedded in recent years scholars have begun to recognize that the effects of these social networks may vary across populations or types of relations this article examines the extent to which the effects of interfirm networks on the behavior of firms are historically contingent focusing on the level of debt financing among approximately 140 large u s corporations over a 22 year period the authors show that the extent to which the firms use of debt was influenced by those with which they were tied through director interlocks declined over time the authors argue that this decline in the network effect reflected a shift in the institutional environment within which the firms operated and that it was driven by three processes the professionalization of the finance function within the firm the internalization of financial decision

accounting for urban china s rising income inequality the roles of labor market human capital and marriage market factors this paper analyzes china s rising family income inequality since the early 1990s when the urban labor market started its transformation from a centrally controlled to a market driven one we document the trends in income inequality over the period of 1992 2009 using the urban household survey data and adopt the approach recently proposed by eika et al 2014 to decompose changes in income inequality we find that labor market factors accounted for about three quarters of the overall increases in income inequality while falling marriage rate contributed the other quarter changes in human capital levels and marital assortativeness have not contributed to the rising inequality jel d31 i26 j12

here a chief there a chief the rise of the cfo in the american firm this article examines the rise of the chief financial officer cfo position among american firms during the period 1963 2000 building on event history models of cfo adoptions among a sample of some 400 large corporations this analysis documents two stages in the diffusion of the cfo model that occurred prior to its ultimate embodiment of the shareholder value ideal the cfo function originated as part of the conglomerate ideal to handle the funding of diversifying acquisitions in response to an ambiguous regulatory change in accounting rules in 1979 which threatened to reduce reported earnings further at a time when corporate earnings already were under great strain corporate leaders and finance professionals reconstructed the cfo as a solution the cfo s popularity quickly surged as a result and the role kept expanding in the following years to focus on managing shareholders and stock prices

social movements and organizational form cooperative alternatives to corporations in the american insurance dairy and grain industries how do social movements promote diversity and alternative organizational forms we address this question by analyzing how cooperative enterprise was affected by the grange a leading anticorporate movement in the united states during the late nineteenth and early twentieth centuries state level analyses across three industries yield three findings first the grange had positive effects on cooperatives and mutuals during the nineteenth century populist struggles over corporate capitalism second these effects were stronger where corporations counter mobilized to block challengers political efforts grangers pursued economic organization as an alternative to politics and in response to blocked political access third the grange continued to foster cooperatives even as populist revolts waned it did so however by buffering cooperatives from problems of group heterogeneity and population change rendering them less dependent on supportive communities and specific economic conditions these findings advance research at the movements organizations interface by documenting movement effects and by isolating different causal pathways through which mobilization counter mobilization and political opportunity shape economic organization the results also provide economic sociology with new evidence on how social structure moderates economic forces and help revise institutional analyses of american capitalism by showing how cooperatives emerged as significant rather than aberrant elements of the u s economy

decomposition weights and overall efficiency in two stage additive network dea abstract data envelopment analysis dea is a technique for performance evaluation of peer decision making units dmus the network dea models study the internal structures of dmus using two stage network structures as an example the current paper examines additive efficiency decomposition where the overall efficiency is defined as a weighted average of stage efficiencies and the weights are used to reflect relative importance of individual stages we show that weights may not affect the calculation of stage efficiency scores and that variation in the overall efficiency resulting from using different weights can be associated with constant stage efficiencies we demonstrate the need to isolate the impact of weights on the overall efficiency we propose to use a new overall efficiency index to address some pitfalls in weighted additive efficiency decomposition our findings are illustrated using two empirical data sets representing two types of two stage network structures

productivity and customer satisfaction in swedish pharmacies a dea network model this paper presents a data envelopment analysis dea network model that allows inclusion of customer satisfaction in efficiency and productivity measures the network consists of a production node and a consumption node and offers flexibility in modelling the production and consumption process where a firm specific allocation of input resources to production and customer oriented activities is allowed the proposed model is applied on a sample of swedish pharmacies with organizational objectives that necessitates a monitoring of efficiency and productivity as well as customer satisfaction estimation results from the network model and a direct productivity model without customer satisfaction are compared and indicate that the technical efficiency is lower under the network model the productivity results indicate productivity progress under both models albeit with a slower rate of change under the network model

dea like models for efficiency evaluations of specialized and interdependent units abstract the problem of evaluating the efficiency of a set of specialized and interdependent decision making subunits dmsus that make up a larger decision making unit dmu is considered the dmsus are interdependent in the sense that part of the output produced by each of them may be used as an input by the other ones they are also specialized hence non homogeneous as they may have not the same inputs and outputs for this problem some efficiency indexes are introduced and they are shown to satisfy some basic properties

efficiency analysis of major cruise lines three major cruise lines account for 82 of the total market share their financial statements show different results between the operating incomes and net incomes over time to examine the major causes of the differences this study measured the efficiency of the top three cruise lines to develop a network dea model to analyze the cruise operations at two stages namely operating and non operating stages in addition the determinants of the efficiencies were examined using a bootstrapped truncated regression model overall cruise lines were efficient at the operating stage but varied widely in the efficiency of the non operating stage cruise lines attempting high capacity expansion were relatively inefficient because of the heavy interest payments arising from the high debt to capital ratio moreover the neglected hedging policy regarding the financial risks also contributed to the inefficiency

markets and inequality in transitional economies toward testable theories nee s 1989 and in this issue market transition theory contested by xie and hannum in this issue claims that market mechanisms have predictable implications for inequality compared to nonmarket allocation market exchange enhances the bargaining power of producers nee p 910 the core argument is that cadre advantages shall decline to the extent that markets replace redistribution as the dominant mode of economic allocation while in successive publications nee has altered his judgment about how far the market transition has proceeded in rural china and whether his theory does predict a decline of cadre privilege he has not altered the core claim about market allocation market economies vary widely in their patterns of power and privilege in ways unrelated to the extent to which a market economy has been established the variability of market economies warns against attempts to predict changes in inequality without first specifying the kinds of enterprises and other institutions that characterize the emerging market economy or even the characteristics of markets themselves we have been tempted into these predictions by the memorable polanyian contrast between two ideal typical economies redistributive and market that has proven a rich source of hypotheses about stratification szelenyi 1978 1983 and the theory of the firm kornai 1992 under state socialism this contrast has crystallized a research agenda by posing an important historical question about the social impact of the rise of market allocation in planned economies especially as it concerns the fate of communist officials but many now find that these ideal types and the continuum that bridges them are a poor guide to the analysis of emerging market economies see bian and logan 1996 lin 1995 rona tas 1994 1995 walder 1992 1995 and stark and xie and hannum in this issue general claims about the impact of markets should be viewed skeptically for the impact of markets works through the allocation of assets the characteristics of emerging markets and the political processes by which market economies are established markets per se are not the issue

best performing us mutual fund families from 1993 to 2008 evidence from a novel two stage dea model for efficiency decomposition when analyzing relative performance especially at the institutional level the traditional data envelopment analysis dea models do not recognize vastly different and important activities as separate functions and therefore cannot identify which function may be the main source of inefficiency we propose a novel two stage dea model that decomposes the overall efficiency of a decision making unit into two components and demonstrate its applicability by assessing the relative performance of 66 large mutual fund families in the us over the period 1993 2008 by decomposing the overall efficiency into operational management efficiency and portfolio management efficiency components we reveal the best performers the families that deteriorated in performance and those that improved in their performance over the sample period we also make frontier projections for poorly performing mutual fund families and highlight how the portfolio managers have managed their funds relative to the others during financial crisis periods

returns to education a further international update and implications this paper updates evidence on the returns to investment in education by adding estimates for new countries and refining existing estimates to bring the total number of country cases to over 60 the new cross country evidence confirms and reinforces earlier patterns namely that returns are highest for primary education the general curricula the education of women and countries with the lowest per capita income the findings have important implications for directing future investment in education which for efficiency and equity purposes should concentrate on these priority areas

estimating returns to education using twins in urban china abstract this paper empirically estimates the return to education using twins data that the authors collected from urban china our ordinary least squares estimate shows that one year of schooling increases an individual s earnings by 8 4 if we use a within twin fixed effects model the return is reduced to 2 7 but rises to 3 8 after the correction of measurement error these results suggest that a large portion of the estimated returns to education is due to omitted ability or the family effect we further investigate why the true return is low and the omitted ability bias high and find evidence showing that it may be a consequence of china s education system which is highly selective and exam oriented more specifically we find that high school education may mainly serve as a mechanism to select college students but as a human capital investment per se it has low returns in terms of earnings in contrast both vocational school education and college education have a large return that is comparable to that found in the united states

economic behavior in institutional environments the corporate merger wave of the 1980s over the last 100 years the united states has experienced four waves of corporate merger activity the first occurred at the turn of the century then again in the 1920s the 1960s and the 1980s most research on merger waves has focused on individual mergers within a wave our research focuses on the wave itself we develop a theoretical model that centers on the actors who promote the mergers and on those changes in the political and economic environments that provide the resources these actors need to act specifically we argue that a permissive state combined with increased access to capital market funds encourages fringe players to initiate the innovations that enable them to execute mergers merger waves occur when these actors become increasingly successful and their innovations are imitated throughout the business community we provide empirical support for the model using data from the 1980 s merger wave

returns to education in china a meta analysis within labour economics returns to education is an area of focused research moreover amongst studies looking at emerging economies china is the most widely studied economy while there is a gen

astronomics in action the graduate earnings premium and the dragon effect in singapore white u s and latin american currencies portray images of national independence heroes singapore s 2 dollar bill the most widely circulated since there is no smaller denomination shows students in a classroom listening to a professor with a university in the background underneath there is just one word education singapore s obsession with education miami herald 8 september 2009 i introduction since the groundbreaking work of mincer 1974 many academics have looked closely at the question of what the return to education might be 1 however because of the lack of data the literature does not have much to say about singapore even though a lot of research has been done for advanced countries throughout the world 2 3 in this paper we employ a recent survey from the singapore national youth council to study one aspect of this topic the return to university education in singapore having a university education is usually perceived to be good for one s career although the extent to which this is true has been a constant point of contention 4 this debate had relied largely on anecdotes instead of econometric research understandably so because data is not easily available therefore this paper hopes to offer some evidence on the causal link between university education and earnings outcome in singapore however identification is a formidable challenge as in any research that aims to estimate the return to education although the positive association between education and earnings is a virtually ubiquitous fact prima facie evidence of income gaps may misrepresent what the true return to education is because individuals tend to make educational choices according to their abilities such income gaps would contain not only the return that is due to education the quantity of interest but also the return on unobserved abilities which is the confounding effect over the years economists have sought to disentangle the causal effect of education from the confounding effect of unobserved abilities in the data but the existing estimation approaches are not easily adaptable here for example methods that employ within twin comparisons or changes in compulsory schooling laws cannot be implemented owing to data limitations and the lack of important schooling reforms in singapore 5 in fact the dataset used here was compiled for a different purpose than economics which is to provide a better understanding of singapore s youths from a sociological perspective given these issues a new estimation approach has to be considered in this paper we propose to exploit a consequence li liu and zhang 2012 of chinese traditions generating the so called dragon effect to study the causal link between university education and income in singapore chinese is the largest ethnic group and malays indians and eurasians are the main ethnic minorities according to chinese traditions there are 12 creatures in the chinese zodiac where each represents a lunar year in a 12 year cycle among them the dragon is the most auspicious creature and babies born in a dragon year are believed to be superior 6 because of this conviction the dragon year has seen upswings in the rate of birth not just in singapore but also in places where chinese culture is prevalent 7 for example figure 1 plots the birth rate from 1970 in singapore based on resident women aged between 15 and 49 8 while the fertility rate was plunging early on it did increase momentarily during the dragon year of 1976 there was another sharp increase in 1988 9 and then in 2000 which marks the highly auspicious year of the golden dragon figure 1 omitted the positive relationship between the birth rate and the dragon year provides the rationale behind the identification strategy used here as the dragon cohort is larger than usual competition for entry into university would be more intense leading to what is known as the dragon effect

firm expansion size spillovers and market dominance in retail chain dynamics we develop and estimate a dynamic game of strategic firm expansion and contraction decisions to study the role of firm size in future profitability and market dominance modeling firm size is important because retail chain dynamics are more richly driven by expansion and contraction than de novo entry or permanent exit additionally anticipated size spillovers may influence the strategies of forward looking firms making it difficult to analyze the effects of size without explicitly accounting for these in the expectations and hence decisions of firms expansion may also be profitable for some firms while detrimental for others thus we explicitly model and allow for heterogeneity in the dynamic link between firm size and profits as well as potential for persistent brand effects through firm specific unobservable factors as a methodological contribution we surmount the hurdle of estimating the model by extending a two step procedure that circumvents solving the game the first stage combines semipar

getting personal networks and stratification in the russian labor market 1985 2001 the authors use employment histories from survey data to examine personal network use and stratification in the russian labor market from 1985 to 2001 institutional changes associated with the soviet collapse increased the use of networks and shaped their prevalence and benefits in theoretically coherent ways in russia networks positively affect job quality whether measured by occupation current earnings or wage arrears these findings relate to recent debates over whether job contacts provide advantages and how social capital relates to postsocialist inequalities involving gender communist party membership and education russia also exhibits a previously overlooked relationship between network use and locality type

estimates of the economic returns to schooling from a new sample of twins this paper uses a new survey to contrast the wages of genetically identical twins with different schooling levels multiple measurements of schooling levels were also collected to assess the effect of reporting error on the estimated economic returns to schooling the data indicate that omitted ability variables do not bias the estimated return to schooling upward but that measurement error does bias it downward adjustment for measurement error indicates that an additional year of schooling increases wages by 12 to 16 percent a higher estimate of the economic returns to schooling than has been previously found copyright 1994 by american economic association

influencing factors on hydrogen energy r d projects an ex post performance evaluation abstract to enhance its energy security korea made a significant r d investment in developing hydrogen energy technology over a period of 10 years the hydrogen energy r d center was established in 2003 with a 100 billion korean won krw government investment that would fund the initiative through 2012 this paper is a meaningful attempt to evaluate the ex post performance of completed hydrogen energy r d projects using data envelopment analysis dea through empirical analysis we focus mainly on measuring ex post performance and uncovering the influencing factors on that performance the results of our empirical analysis reveal several interesting findings first overall the ex post performance of completed projects is relatively low however there are major performance gaps among projects second r d type technology type and private sector investment are factors influencing project performance more specifically projects identified as basic research storage technology or without private sector investment had the highest performance with an acceptable level of statistical significance third dea can provide unique information such as results of returns to scale and slack analysis which cannot be gleaned from parametric methods as time went on the decreasing returns to scale drs ratio increased and the increasing returns to scale irs ratio decreased this means that the r d budget was used less and less effectively as time passed moreover among the three year project period the second year s r d budget was used most efficiently in each r d project this study can provide meaningful information to policy makers to enhance the performance of future r d projects and to promote hydrogen r d projects as well as advance the hydrogen economy

productivity and intermediate products a frontier approach abstract in recent years it has become popular to measure productivity using non parametric approaches however this has been done while ignoring intermediate products here we develop a non parametric productivity measure that explicitly incorporates such products

the contingent nature of public policy and the growth of u s commercial banking runner up academy of management s best published paper in organization and management theory in 2009

income schooling and ability evidence from a new sample of identical twins we develop a model of optimal schooling investments and estimate it using new data on approximately 700 identical twins we estimate an average return to schooling of 9 percent for identical twins but estimated returns appear to be slightly higher for less able individuals simple cross section estimates are marginally upward biased these empirical results imply that abler individuals attain more schooling because they face lower marginal costs of schooling not because of higher marginal benefits

the rise and fall of small worlds exploring the dynamics of social structure this paper explores the interplay between social structure and economic action by examining some of the evolutionary dynamics of an emergent network that coalesces into a small world system the study highlights the small world system s evolutionary dynamics at both the macro level of the network and the micro level of an individual actor this dual analytical lens helps establish that in competitive and information intensive settings a small world system could be a highly dynamic structure that follows an inverted u shaped evolutionary pattern wherein an increase in the small worldliness of the system is followed by its later decline as a result of three factors 1 the recursive relationship between the evolving social structure and individual actors formation of bridging ties which eventually homogenizes the information space and decreases actors propensity to form bridging ties creating a globally separated network 2 self containment of the small world network or increasing homogenization of the social system which makes the small world less accepting of and less attractive to new actors thereby limiting formation of bridging ties to outside clusters and 3 fragmentation of the small world network or the small world system s inability to retain current clusters the study uses data on interorganizational tie formation in the global computer industry in the period from 1996 to 2005 to test the hypothesized relationships

the social construction of market value institutionalization and learning perspectives on stock market reactions this study advances a social constructionist view of financial market behavior the paper suggests that the market s reaction to particular corporate practices such as stock repurchase plans are not as financial economists contend simply a function of the inherent efficiency of such practices rather stock market reactions are also influenced by the prevailing institutional logic and the degree of institutionalization of the practice the theory first predicts that the emergence of the agency perspective on corporate governance in the mid 1980s represented a powerful new institutional logic that would lead the market to reverse its prior aggregate reaction to stock repurchase plans in the united states the paper then considers the potential for institutional decoupling of repurchase plans and develops competing hypotheses about how the market value of these policies might have changed as more firms formally adopted but did not implement the plans over time in contrast to a financial economic pers

analysing wage differentials when workers maximize the return to human capital investment abstractthe analysis of the determinants of differences in wages across workers has traditionally relied on the estimation of average earnings functions in this article we propose a new theoretical model where it is the workers who decide the amount they wish to invest in human capital taking into account the costs of acquiring those skills for the purpose of maximizing earnings in this model both human capital and marginal productivity are likely to be influenced by the individual s unobserved characteristics such as ability or motivation potentially giving rise to endogeneity problems in this context the empirical implementation of our theoretical model allows us under certain assumptions to obtain consistent estimates even under the assumption of endogeneity we present an empirical application to the education sector using data from the spanish structure of earnings survey 2010 our results show that females and workers in the private education sector face more difficulties in achieving t

deriving the dea frontier for two stage processes data envelopment analysis dea is a method for measuring the efficiency of peer decision making units dmus recently dea has been extended to examine the efficiency of two stage processes where all the outputs from the first stage are intermediate measures that make up the inputs to the second stage the resulting two stage dea model provides not only an overall efficiency score for the entire process but as well yields an efficiency score for each of the individual stages due to the existence of intermediate measures the usual procedure of adjusting the inputs or outputs by the efficiency scores as in the standard dea approach does not necessarily yield a frontier projection the current paper develops an approach for determining the frontier points for inefficient dmus within the framework of two stage dea

imitation costs and patents an empirical study it has long been recognised that the costs of imitating new products have an important effect on the incentives for innovation in a market economy as arrow i962 and others have pointed out if firms can imitate an innovation at a cost that is substantially below the cost to the innovator of developing the innovation there may be little or no incentive for the innovator to carry out the innovation in their discussions of the innovation process economists frequently have called attention to the major role played by the costs of imitation but there has been little or no attempt to measure these costs to test various hypotheses concerning the factors influencing them or to estimate their effects in this paper we report some findings of what seems to be the first study of this topic in addition we present data regarding the effects of patents on imitation costs and on the rate of innovation

returns to education evidence from u k twins we use a new sample of uk female identical twins to estimate private economic returns to education we report findings in three areas first we use identical twins to control for family effects and genetic ability bias and the education reported by the other twin to control for schooling measurement error our estimates suggest a return to schooling for uk females of about 7 7 second we investigate within twin pair ability differences by examining within twin pair and between family correlations of education with observable correlates of ability including birthweight ability tests and reading scores our findings suggest lower ability bias in within twin pair regressions than pooled regressions third using data on twins smoking we show smoking reflects family background and using it as an instrument exacerbates ability bias this abstract was borrowed from another version of this item

embeddedness in the making of financial capital how social relations and networks benefit firms seeking financing i investigate how social embeddedness affects an organization s acquisition and cost of financial capital in middle market banking a lucrative but understudied financial sector using existing theory and original fieldwork i develop a framework to explain how embeddedness can influence which firms get capital and at what cost i then statistically examine my claims using national data on small business lending at the level of dyadic ties i find that firms that embed their commercial transactions with their lender in social attachments receive lower interest rates on loans at the network level firms are more likely to get loans and to receive lower interest rates on loans if their network of bank ties has a mix of embedded ties and arm s length ties these network effects arise because embedded ties motivate network partners to share private resources while arm s length ties facilitate access to public information on market prices and loan opportunities so that the benefits of different types of ties are optimized within one network i conclude with a discussion of how the value produced by a network is at a premium when it creates a bridge that links the public information of markets with the private resources of relationships

assessment of china transit and economic efficiencies in a modified value chains dea model abstract this study incorporates the concepts of undesirable intermediate intermediate input uncontrollable input and undesirable output to the value chains model chen and zhu 2004 thereby creating a modified value chains model to compute transit and economic efficiencies in 30 regions of china the modified value chains model forms a more general formulation to the value added chains in the utilization of the above concepts it also provides an optimal intermediate measure which differs from the independent two stage measure empirical evaluations indicate that large scale transit development in china s coastal area does not necessarily represent higher transit efficiency because in the coastal area there is a lack of significant positive relationships between transit and economic efficiency high economic efficiency does not contribute to greater transit efficiency the finding also suggests that by simultaneously decreasing the quantity in passenger and freight transport transit and economic efficiencies have greatly improved in most regions of china

success and failure of reform insights from the transition of agriculture this paper analyzes the linkages between the reform strategies in transition countries and economic performance the authors focus on agriculture because of the sharpness of the policy changes fundamental differences among countries and relative simplicity of agricultural relationships the authors document post reform performance in the transition countries of asia and europe the authors show how a pricing reform and subsidy reductions b land rights reform and policies that affect farm restructuring and c the presence institutions that facilitate exchange either markets or market substitutes affect output and productivity the paper ends with general lessons on reforms and transition

exchange structures in transition lending and trade relations in chinese business groups the networks of interfirm relations that developed in business groups during economic transition are central to china s reform and are becoming an important part of the country s emergent economic structure using a recent and original data set that includes direct observations of economic choices made by firms the process by which these interfirm lending and trade ties emerged and evolved in the early stages of reform is explored initially information from sources external to the network dominated the formation and direction of exchange relations firms turned to their prior connections took advantage of market position and drew on bureaucratic power to develop alliances over time internal influences gained importance and managers increasingly drew on internal nontrade relations and other indicators inside the business group to identify lending and trade partners the results demonstrate the central but changing role that social relations and environmental cues played in the creation of economic structure during china s transition this study also contributes to an understanding of the processes of organizational adaptation to a major economic transition and interfirm alliance formation more generally the findings reveal that firms select exchange partners of known reputation and solicit relations that reduce uncertainty even when there is a cost involved

cost and learning efficiency drivers in australian schools a two stage network dea approach this article explore performance issues in australian public schools using a two stage dea network model which accounts simultaneously for both cost and learning efficiency levels in the cost efficiency stage different types of expenses and investments are employed to support a given number of students teachers and administrative staff in the learning efficiency stage these groups of individuals help to produce important outputs related to performance in student tests and school rankings results indicate that australian public schools are heterogeneous policy implications are also discussed

uncertainty risk and trust russian and american credit card markets compared the strategies that russian and american banks use to evaluate the creditworthiness of prospective credit card holders are compared drawing on knight s theory of risk and uncertainty the authors argue that uncertainty inherent in any credit transaction can only be reduced to measurable risk if there are institutions that create stability over time categorize events properly and allow for verification and accumulation of information in the united states the gradual evolution of institutions underpinning rational calculation permits the transformation of uncertainty into risk in russia however such institutions are absent and a great degree of uncertainty prevails in consumer credit using data from original fieldwork in moscow this study demonstrates that when actors face uncertainty and are unable to calculate risk they rely on trust russian banks use and extend their existing social ties or in some cases build new ties they also exploit cardholders own networks unrelated to the bank to increase their accountability through anchoring these strategies however keep the market embedded limited in size and uninsurable the authors conclude that calculation of probabilities and economic rationality in its formal sense is not an innate human ability but a social capacity that exists courtesy of institutional arrangements

industry differences in the persistence of firm specific returns some firms such as kellogg nestle hewlett packard and boeing have consistently earned significantly higher returns than their immediate competitors why do intraindustry rents persist for these firms competition typically erodes these rents as evidenced by the strong convergence of firm profitability to the industry mean illustrated in figure 1 i claim that the persistence of these firmspecific rents depends at least partly on industry economic structure similar to richard e caves and michael e porter s 1977 mobility barriers so the rents are more persistent in some industries than others in this paper i test which of the theoretical industry factors are significant to support my claim i also show that the persistence of abnormal returns differs widely and systematically across industries for example an industry with highly persistent profitability differences is the american automobile industry in the 1970 s as illustrated by figure 2 which graphs differences in returns on assets roa s over time throughout the 1970 s general motors maintained a persistent significant profitability advantage over ford while ford held a persistent advantage over chrysler this situation did change later but it is still true that during the 1970 s there was no apparent convergence of profitability differences among the big three auto makers a comparison of figures 1 and 2 suggests that the economy wide result of figure 1 is merely an average over very different industries with convergence rates ranging from almost zero as in automobiles in the 1970 s to very rapid my methods for estimating persistence of above average returns improve on previous studies in several ways first i only consider the persistence of returns around the industry mean the persistence of this intra industry or firm specific rent rather than total rent has not been previously investigated yet the factors affecting firm specific rents need not be the same as those affecting industry rents second i estimate persistence in several ways finally i use a wider range of explanatory variables than earlier studies this study is structured as follows section i explains the concept of persistent firmspecific rents later sections specify the empirical model and estimate persistence by industry section ii theoretically relate industry factors to these varying persistence estimates section iii discuss cross sectional regression estimates section iv and provide conclusions section v

what do twins studies reveal about the economic returns to education a comparison of australian and us findings conventional estimates of rates of return to education are constrained because they are unable to isolate the returns to schooling from the contribution of individual ability and the influence of family background potentially studies using a sample of twins may overcome these problems monozygotic twins are genetically identical and if they have been reared together share the same family background differences in income between identical twins can therefore be associated with differences in the amount of education they have undertaken in order to estimate the independent influence of education comparisons of such estimates with estimates made from a sample of dizygotic twins who are genetically similar but not identical and who are also reared together may permit evaluation of the biases associated with ability and family background in conventional estimates of the return to education in an important paper jere behrman et al 1977 analyzed data from a sample of male world war ii veteran twins and found that of the overall rate of return to schooling of 8 percent 2 7 percentage points could be attributed to schooling per se 3 2 percentage points could be attributed to genetic factors and 2 1 percentage points could be attributed to shared family environment in a recent paper however orley ashenfelter and alan krueger 1994 have estimated the economic returns to education using data on a new sample of twins which permitted them to adjust their estimate for omitted ability variables and measurement error on this basis they find that family and genetic effects make virtually no contribution to the returns to schooling measurement error however biases the estimated return to schooling downward the findings of ashenfelter and krueger 1994 are very different from previous work in this field and there is now some confusion as to what analysis of twins data really reveals about the economic returns to schooling ashenfelter and krueger s results are based on analysis of data for a sample of 298 individuals 149 pairs of identical twins who attended a twins festival in 1991 they remark at the end of their paper only additional data collection is likely to lead to better estimates of the returns to schooling p 1171

college choice and wages estimates using data on female twins the authors assess the impact of college quality on women s earnings and the influence of family and individual endowments on college choice using new data from a survey of identical and nonidentical twins born in minnesota the estimates reject models that ignore school choice the statistically preferred estimates suggest that ph d granting private universities with well paid senior faculty and smaller enrollments produce students who have significantly higher earnings later in life both the quantity of schooling and the quality of schooling resources are allocated to higher endowed individuals which exacerbates preexisting inequality in human capital and biases conventional estimates of school quality effects copyright 1996 by mit press

measuring the efficiency of china s regional innovation systems application of network data envelopment analysis dea chen k and guan j measuring the efficiency of china s regional innovation systems application of network data envelopment analysis dea regional studies this study applies a relational network data analysis envelopment to the systematic evaluation of the innovation efficiency of china s regional innovation systems by decomposing the innovation process into the two connecting sub processes technological development and subsequent technological commercialization the results show that only one fifth of china s regional innovation systems are operating on the empirical best practice frontier during the whole process from technological development to commercialization furthermore it is found that substantial inconsistencies exist between technological development capacity and commercialization capacity in most regional innovation systems and that downstream commercialization capacity plays a more important role in the innovation performance of regional innovation systems chen k et guan j evaluer

the duality of collaboration inducements and opportunities in the formation of interfirm linkages i argue that the linkage formation propensity of firms is explained by simultaneously examining both inducement and opportunity factors drawing upon resource based and social network theory literatures i identify three forms of accumulated capital technical commercial and social that can affect a firm s inducements and opportunities to form linkages firms possessing these capital stocks enjoy advantages in linkages formation however firms lacking these accumulated resources can still form linkages if they generate a radical technological breakthrough thus i identify paths to linkage formation for leading as well as peripheral firms i test these arguments with longitudinal data on technical collaborative linkages in the global chemicals industry copyright 2000 john wiley sons ltd

endowments and the allocation of schooling in the family and in the marriage market the twins experiment 03 we show how comparisons between the within twin correlations of human capital outcomes across identical and nonidentical twins can be used to identify the variability in the individual specific component of endowments and the responsiveness of schooling to individual specific endowments in the family and in the marriage market even when schooling is measured with error estimates from two twins samples indicate that 27 42 percent of the variance in log earnings obesity is due to variability in individual specific endowments allocations of schooling reinforce specific endowments and individual specific earnings endowments of men and their wives schooling are negatively associated

interprovincial two stage water resource utilization efficiency under environmental constraint and spatial spillover effects in china although existing studies have paid much attention to the measurement model of water resource utilization efficiency they have failed to consider the spatial spillover effect of some influencing factors of water resource utilization efficiency causing biased results this study measures the water resource utilization efficiency of 31 provincial administrative regions in china from 2001 to 2014 and the efficiency of each stage by adopting a slack based efficiency evaluation model based on the relaxation of two stages to consider undesirable output then this study employs a spatial durbin econometric model by considering spatial effect to analyze the influencing factors of the overall efficiency of water resource utilization by per capita water resources industrial water living water consumption per capita gross domestic product degree of opening to the outside world industrial structure technological progress and other aspects by comparison existing studies do not consider the spatial spillover effect this study estimates the direct and indirect effects of the influencing factors of water resource utilization efficiency to distinguish local and neighbors impacts of influencing factors of water resource utilization efficiency the results are as follows 1 first stage overall efficiency is significantly higher than second stage water resource utilization efficiency overall efficiency is close to second stage efficiency and second stage efficiency determines the overall effectiveness of water resource utilization 2 the spatial autocorrelation intensity of water resource utilization overall efficiency is significantly greater than zero and water resource utilization overall efficiency presents concentration distribution in the space for which the eastern coastal regions are high high type and the central and western regions are low low type 3 the overall efficiency of water resource utilization has spatial spillover effects and the region s overall efficiency is influenced by both region and neighborhood region 4 the direct and indirect effects of domestic water consumption degree of opening up and industrial structure are the primary significant influencing factors of overall efficiency of water resources in china the spatial spillover effects of domestic water consumption and industrial structure have a significant impact to improve water resource utilization efficiency the government and citizens should focus on such solutions as pollution reduction domestic water savings and transforming the industrial structure moreover china should consider the spatial effects of these influencing factors when government policies are designed

returns to education in china we were fortunate in having access to a survey of 800 adults in nanjing that was conducted by the international wool secretariate in 1986 the survey was intended for market research e g brand recognition but questions were asked about the respondent s age occupation income and education level these questions though not ideally worded were sufficient for the undertaking of a returns to education study we believe the data to be unique and of course the issue of interest is whether a member of the workforce in china faces investment decisions on education similar to those faced elsewhere the influence of sex and marital status on the level of income achieved by an individual was also examined the basic equation modeled personal income as a nonlinear function of schooling and experience but multicollinearity problems were encountered as a result a production function approach was successfully adapted to the returns toeducation model the collinearity problem was overcome and this approach allowed the ease of substitution of education for experience in income generation to be examined more formally an additional problem of errors in variables arose from a failing in questionnaire design and was handled statistically

development and application of the hicks moorsteen productivity index for the total factor productivity assessment of wastewater treatment plants abstract the assessment of the productivity change in wastewater treatment plants is essential to improve performance and reduce operational costs several indices are available to compute unit productivity however some assessments are more reliable than others in the absence of price data the malmquist productivity index is the most commonly applied but it does not maintain total factor productivity properties under variable returns to scale technology hence malmquist productivity index is not a suitable index to compute total factor productivity change in wastewater treatment plants the present study served to overcome such limitations by calculating for the first time total factor productivity changes in a sample of 204 spanish wastewater treatment plants using the hicks moorsteen productivity index it is a multiplicatively complete index which can be decomposed as several sub indices representing technical and efficiency changes therefore this study also investigated the drivers of total factor productivity change in wastewater treatment plants results showed a 5 4 total factor productivity decline per year from 2003 to 2008 in the plants analysed the primary driver in the reduction was efficiency change alternatively technical change improved during the five years of study the results of this study provide support for policymakers and managers in decision making processes and contribute to the improvement of technical and economic wastewater treatment plants performance in addition it is evidenced that wastewater treatment plants current dependence on external energy sources should be reduced to improve productivity and reduce costs to citizens who pay for wastewater treatment services

networks as the pipes and prisms of the market1 this article draws an analytical distinction between two types of market uncertainty egocentric which refers to a focal actor s uncertainty regarding the best way to convert a set of inputs to an output desired by a potential exchange partner and altercentric which denotes the uncertainty confronted by a focal actor s exchange partners regarding the quality of the output that the focal actor brings to the market given this distinction the article considers how the value of structural holes and market status vary with these two types of uncertainty the article proposes that the value of structural holes increases with egocentric uncertainty but not with altercentric uncertainty in contrast the value of status increases with altercentric uncertainty but declines with egocentric uncertainty thus actors with networks rich in structural holes should sort into markets or market segments that are high in egocentric uncertainty high status actors should sort into markets that are low in egocentric

random walks and sustained competitive advantage strategy is concerned with sustained interfirm profitability differences observations of such sustained differences are often attributed to unobserved systematic a priori differences in firm characteristics this paper shows that sustained interfirm profitability differences may be very likely even if there are no a priori differences among firms as a result of the phenomenon of long leads in random walks even a random resource accumulation process is likely to produce persistent resource heterogeneity and sustained interfirm profitability differences a cournot model in which costs follow a random walk shows that such a process could produce evidence of substantial persistence of profitability the results suggest that persistent profitability does not necessarily provide strong evidence for systematic a priori differences among firms nevertheless since the phenomenon of long leads is highly unrepresentative of intuitive notions of random sequences such evidence may still be persuasive