market structure and the intraday pattern of bid ask spreads for nasdaq securities this article examines the intraday pattern of bid ask spreads among nasdaq stocks we find that spreads are relatively stable throughout the day but narrow significantly near the close this contrasts with the u shaped pattern for nyse stocks reported by brock and kleidon and mcinish and wood we attribute these divergent patterns to structural differences between specialist and dealer markets the wider spreads for nyse stocks near periods of market closure may reflect the market power of specialists the decline in spreads near the close for nasdaq stocks is consistent with inventory control by individual dealers copyright 1995 by university of chicago press

the political economy of taking and just compensation by creating an implicit right to judicial review and lowering the transaction costs a property owner must incur to challenge a taking the just compensation restriction on eminent domain limits the tendency of political decision makers to avoid the subjective costs their actions inflict on property owners and moves the level of taking closer to the social optimum its impact however is partially to completely erased by the risk aversion of the property owner and the fiscal illusion of the political decision maker unless there are additional constraints in the fiscal constitution

internal capital markets and the competition for corporate resources this article examines the role of corporate headquarters in allocating scarce resources to competing projects in an internal capital market unlike a bank headquarters has control rights that enable it to engage in winner picking the practice of actively shifting funds from one project to another by doing a good job in the winner picking dimension headquarters can create value even when it cannot help at all to relax overall firm wide credit constraints the model implies that internal capital markets may sometimes function more efficiently when headquarters oversees a small and focused set of projects this article analyzes the process by which internal capital markets channel limited resources to different uses inside a company in so doing it seeks to address two related sets of questions first what is the fundamental economic rationale for creating an internal capital market that is under what circumstances can it make sense to combine several technologically distinct projects under one roof and have them seek funding from corporate headquarters as opposed to setting them up as stand alone companies that each raise external financing on their own second given this rationale what is the optimal size and scope of an internal capital market should headquarters be involved in funding a large number of projects or just a few and should these projects be unrelated to one another or in similar lines of business the answers to both sets of questions flow from the insight that in a credit constrained setting where not all positive npv projects can be financed headquarters can create value by actively reallocating scarce funds across projects for example the cash flow generated by one division s activities may be taken and spent on investment in another division where the returns are higher or alternatively one division s assets may be used as collateral to raise financing that is then diverted to the other division simply put individual projects must compete for the scarce funds and headquarters job is to pick the winners and losers in this competition

diversifying entry some ex ante explanations for postentry survival and growth links between theoretically determined preentry conditions and the postentry performance of diversifying entries made by large industrial firms are examined industry firm and relatedness variabl

minimum price variations discrete bid ask spreads and quotation sizes exchange minimum price variation regulations create discrete bid ask spreads if the minimum quotable spread exceeds the spread that otherwise would be quoted spreads will be wide and the number of shares offered at the bid and ask may be large a cross sectional discrete spread model is estimated by using intraday stock quotation spread frequencies the results are used to project 1 16 spread usage frequencies given a 1 16 tick projected changes in quotation sizes and in trade volumes are obtained from regression models for stocks priced under 10 the models predict spreads would decrease 38 percent quotation sizes would decrease 16 percent and daily volume would increase 34 percent article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

how much does country matter an analysis of firms growth options recent international strategy research emphasizes the importance of understanding the effects of geographic location on firms strategies and performance outcomes we contribute to this research by providing empirical evidence that the interplay of country and industry effects matters substantially in explaining the variation in the value of growth options of firms based in different countries our results show that country industry effects are the second largest source of variation following firm effects while industry and country effects are relatively small when considered in their own right that valuable growth options are tied to country and industry interactions has important implications for international strategy research and practice

ownership concentration and firm performance in emerging markets a meta analysis the literature concerned with relations between ownership concentration and corporate performance in emerging markets presents conflicting theoretical predications and inconclusive empirical results we use meta analytical techniques to integrate the diverse empirical findings and investigate factors contribute to the inconsistencies in the empirical evidence using 419 correlations collected from 42 primary studies of listed corporations in 18 emerging markets heterogeneity tests show that only a small proportion of the variation in reported ownership concentration performance relations can be attributed to sampling error our meta regressions reveal how population differences researchers modeling choices and inadequate treatment of endogeneity explain a large portion of the true heterogeneity after adjusting for these effects we find ownership concentration has negative relation with firm performance across countries our results emphasize the importance of model specification and methods of addressing endogeneity and support further comparative study of the ownership concentration corporate performance relation between countries with seemingly similar corporate governance environments

sources of superior performance market share versus industry effects in the u s brewing industry using financial measures of performance we investigate the sources of value creation in the u s brewing industry between 1969 and 1979 we find that market share gains in this industry at this time are not correlated with changes in value and that the performance of individual leading firms is highly correlated our interpretation is that the success of market share building strategies depends critically on specific industry conditions specifically in the absence of fundamental shifts in the relative resource positions of individual firms share gains may come at too high a price in addition the research shows that intra industry correlations in returns may result from excessive competition rather than collusion

information technology effects on firm performance as measured by tobin s q despite increasing anecdotal evidence that information technology it assets contribute to firm performance and future growth potential of firms the empirical results relating it investments to firm performance measures have been equivocal however the bulk of the studies have relied exclusively on accounting based measures of firm performance which largely tend to ignore it s contribution to performance dimensions such as strategic flexibility and intangible value in this paper we use tobin s q a financial market based measure of firm performance and examine the association between it investments and firm q values after controlling for a variety of industry factors and firm specific variables the results based on data from 1988 1993 indicate that in all of the five years the inclusion of the it expenditure variable in the model increased the variance explained in q significantly the results also showed that for all five years it investments had a significantly positive association with tobin s q value our results are consistent with the notion that it contributes to a firm s future performance potential which a forward looking measure such as the q is better able to capture

the effects of volatility in the terms of trade on output growth new evidence abstract this paper examines the empirical evidence for the hypothesis that there is a negative relationship between terms of trade volatility and output growth it finds a statistically significant link between income terms of trade volatility and lower growth rates when the degree of volatility in the income terms of trade is decomposed into its components fluctuations in real exports are of a magnitude similar to those in the relative price of tradables similarly the volatility in the net barter terms of trade is equally affected by variations in the price of exports and of imports any policies aimed at stabilizing the terms of trade or any of its components need to take account of this

impact of information technology capital on firm scope and performance the role of asset characteristics this research draws on transaction cost and resource based theory to examine how information technology it capital moderates the relationship between different types of assets and firm scope both vertical integration and diversification the analysis suggests that it capital enables firms with narrowly valuable assets to be less vertically integrated and less diversified and enables firms with broadly valuable assets to be more vertically integrated and more diversified the moderating influence of it capital on the relationship between different types of assets and firms vertical and product market scope is consistent with transaction cost as well as resource based traditions abstract from author

does corporate strategy matter a revisionist view that corporate strategy does not matter has gained considerable influence in recent years this view largely stems from empirical results of early variance decomposition studies that found negligible corporate effects associated with profitability differences between businesses our analysis of the variance decomposition literature shows this view to be incorrect not only do the studies as a group show that factors at the corporate level of organizations contribute to profitability differences but also evidence suggests that factors specifically associated with corporate strategy contribute to corporate effects corporate strategy in fact does matter copyright 2001 john wiley sons ltd

the political economy of israeli protectionism an empirical analysis the aim of this study was to examine the tariff structure in israel in terms of the four main theoretical models of endogenous commercial policy the empirical results for levels of protection in israel support several of the models in particular the pressure group model performs well and especially the variable that represents the lobbying power of the histadrut public sector in israel this is consistent with the longstanding political power of the histadrut in israel the histadrut s role in the israeli economy rises above the western concept of a labor union and takes on a quasi governmental function the clearest example of this elevated status is seen when the government included the histadrut as part of the commission charged with the responsibility of carrying out the nominal liberalization process of the 1960s evidently it is this kind of political economic power that allowed the histadrut to affect the level of protection histadrut dominated industries received

competitive dynamics and economic learning an extended resource based view in this paper a conceptual framework for the analysis of economic learning is developed economic learning by analogy with organizational learning results in the development of economic competences or capabilities shared between firms which rest on a foundation of economic resources from which value is generated and economic routines through which resources are utilized it is the mobility of resources and their exchange and production dynamics along evolutionary pathways which underpins the plausibility of a notion of economic learning the paper elaborates this framework as a resource based view rbv of the economy as a whole as an extension of the rbv of the firm such a framework captures the dynamics of exchange and circulation of technologies know how and intangible assets as well as of tangible assets and capital goods it is concerned with investment behavior by entrepreneurs rather than with the behavior of producers and consumers in goods and services markets within this resource economy framework it is possible to generate an account of the resource dynamics that underpin production of goods and services including resource propagation diffusion imitation replication and recombination these processes encompass evolutionary pressures experienced through resource variation selection and retention entrepreneurial initiatives take the form of resource recombinations while resource innovation captures the creation of new economic resources such as technological standards such a perspective brings into focus the resource specialization and configurations that drive real economies within firms and between firms that translates into enhanced or diminished performance of the economy as a whole copyright 2003 oxford university press

trading mechanisms and stock returns an empirical investigation this paper examines the effects of the mechanism by which securities are traded on their price behavior we compare the behavior of open to open and close to close returns on nyse stocks given the differences in execution methods applied in the opening and closing transactions opening returns are found to exhibit greater dispersion greater deviations from normality and a more negative and significant autocorrelation pattern than closing returns we study the effects of the bid ask spread and the price adjustment process on the estimated return variances and covariances and discuss the associated biases we conclude that the trading mechanism has a significant effect on stock price behavior

are group affiliated firms really more profitable than nonaffiliated the role of corporate center in influencing the economic performance of business units has been a central research topic in the industrial organization and strategic management literature a common finding is the limited corporate and business group effects recently an emerging line of studies argues that the market inefficiencies and institutional voids in emerging markets can be overcome more efficiently by large diversified business groups than by non group small firms some empirical evidence also shows that non group small firms are significantly less profitable than group affiliated firms this paper raises this issue by empirically investigating the influence of group affiliation on the return on assets and tobin s q of 340 group affiliated firms versus 423 non group firms in taiwan during the period of 1997 1999 the statistical results show that group affiliation can not always create value for member firms the size of the business group matters when affiliated with the largest business groups member firms indeed show improved stock market performance but when firms are affiliated with small and medium sized groups their accounting performance suffers findings of this paper suggest a threshold effect and a u shape relationship between group affiliation and profitability in emerging economies

distinction between intermediate and finished products in intra firm trade abstract although intra firm trade has been viewed as associated with vertical integration which exploits opportunities for exchange between inherently dissimilar economies it is more common between developed countries where horizontal integration is expected to dominate using unique data from 1974 to 1990 on swedish firms application of a tobit model explains variations in majority owned manufacturing affiliates internal imports of intermediate and finished goods on the basis of firms international organization of production effects which are unobservable in aggregate figures show up only when finished and intermediate goods are separated

the impact of trading floor closure on market efficiency evidence from the toronto stock exchange we are the first to evaluate the impact of the trading floor closure on the corresponding efficiency of the stock price formation process on the toronto stock exchange tsx utilizing short horizon return predictability as an inverse indicator of market efficiency we demonstrate that while the switch to all electronic trading resulted in higher volume and lower trading costs the information asymmetry among investors increased as more informed and uninformed traders entered the market the tsx trading floor closure resulted in a significant decrease in informational efficiency and it took about six years for efficiency to return to its pre all electronic trading level in multivariate setting we provide evidence that changes in information asymmetry and increased losses to liquidity demanders due to adverse selection account for the largest variations in the deterioration of the aggregate level of informational efficiency our results suggest that electronic trading should complement rather than replace the exchange trading floor

tick size share prices and stock splits minimum price variation rules help explain why stock prices vary substantially across countries and other curiosities of share prices companies tend to split their stock so that the institutionally mandated minimum tick size is optimal relative to the stock price a large relative tick size provides an incentive for dealers to make markets and for investors to provide liquidity by placing limit orders despite its placing a high floor on the quoted bid ask spread a simple model suggests that idiosyncratic risk firm size and visibility of the firm affect the optimal relative tick size and thus the share price in stock markets around the world the average price per share differs substantially the median u s stock for example sells for about 40 a typical london stock sells for about 5 7 50 and a typical hong kong share is about 2 furthermore when stock prices rise above a country s usual trading range firms often split their stocks to restore prices to that range why are these price ranges so different among countries these trading ranges can be remarkably stable over time during the half century from 1943 to 1994 the s p composite index increased over 1 500 percent yet the average new york stock exchange nyse share price was

diversification diseconomies of scope and vertical contracting evidence from the taxicab industry this paper studies how firms reorganize following diversification proposing that firms use outsourcing or vertical disintegration to manage diseconomies of scope we also consider the origins of scope diseconomies showing how different underlying mechanisms generate contrasting predictions about the link between within firm task heterogeneity and the incentive to outsource following diversification we test these propositions using microdata on taxicab and limousine fleets from the economic census the results show that taxicab firms outsource by shifting the composition of their fleets toward owner operator drivers when they diversify into the limousine business the magnitude of the shift toward driver ownership is larger in less urban markets where the tasks performed by taxicab and limousine drivers are more similar these findings suggest that 1 firms use outsourcing to manage diseconomies of scope at a particular point in the value chain and 2 interagent conflicts can be an important source of scope diseconomies

is tourism firm competitiveness driven by different internal or external specific factors new empirical evidence from spain abstract the quest to understand the multilevel antecedents of competitiveness has led to a separation of approaches on one side of the question are the environment theories that analyze the structural characteristics of the general and competitive environment on the other side are the resource based view and its extensions that highlight firm specific resources and capabilities as the main basis of firms competitiveness however in recent years the nature of competition and shifting economic conditions have given rise to new theoretical approaches that complement the assumptions underlying both environmental and firm theories specifically this study contributes by examining the regional environment effect the district effect and the strategic group effect through a study of 364 spanish tourism firms this research explores the relative importance of distinct external forces such as the general environment or country effect the regional effect the competitive environment or industry effect the district effect and internal factors such as the firm s tangible resources capabilities and strategy selection the results demonstrate that firms capabilities are more important than environment effects and tangible resources

international organization of production and variation in exports from affiliates there is no simple relationship between internationalization of firms operations and expanding trade the variation in exports from swedish affiliates is here shown to be influenced by properties related to their degree of vertical and horizontal integration affiliates propensity to export is positively affected by production in few countries intermediate imports from the parent plant size income level of the host country and a location in the european community and is negatively affected by r d intensity and the size of the host country market

the effects of firm size and industry on corporate giving recent downward trends in corporate giving have renewed interest in the factors that shape corporate philanthropy this paper examines the relationships between charitable contributions firm size and industry improvements over previous studies include an irs data base that covers a much broader range of firm sizes and industries as compared to previous studies and estimation using an instrumental variable technique that explicitly addresses potential simultaneity between charitable contributions and profitability important findings provide evidence of a cubic relationship between charitable giving and firm size and evidence of strong industry effects the plus minus plus regression coefficient sign pattern for the cubic firm size model suggests that small and large firms give more relative to total receipts with lower giving ratios among medium size firms one interpretation for this finding is that small firms are close to the communities they serve while high visibility creates a need for large firm philanthropy strong industry effects provide evidence of inter industry differences in giving culture and or different public relations requirements across industries

knowledge sources patent protection and commercialization of pharmaceutical innovations abstract this paper investigates different types of innovations from radical to incremental in the pharmaceutical industry by studying bibliometric data of drugs approved by the united states food and drug administration fda looking at time to market aspects knowledge sources of these innovations and protection strategies scientific knowledge stemming from the public sector is found to be important for all innovations nevertheless radical innovations build on a higher degree on basic research and they build on a significantly higher share of own prior scientific research than do incremental innovations furthermore each drug is shown to be accompanied by on average about 19 journal publications and 23 additional patents additional patent filings peak when the commercialization of the drug is in reach firms do not differ among the various types of innovations regarding the amount of additional patent filings but rather with the speed of filing these patents finally this work contributes to the improvement of future econometric analyses that aim to link bibliometric indicators such as patent or publication counts to firm success

long run industry equilibrium with uncertainty abstract in this paper we consider the effects of uncertainty on industry equilibrium when firms must commit themselves to production before prices are revealed we show that a an increase in demand uncertainty will i not affect the equilibrium number and size of firms if they are risk neutral ii reduce the equilibrium number of firms if they are risk averse but will have an ambiguous effect on their size b in equilibrium firms operate at capacity if they are risk neutral but at excess capacity if they are risk averse

market uncertainty and competitive equilibrium entry abstract firms facing an uncertain market environment can choose the optimal mix of early and late production by trading off informational advantages of late production against cost advantages of early production consequently their choice of entry into the market whether early and or late depends on the interplay of cost and stochastic demand conditions this paper characterizes the competitive equilibrium conditions that determine the mode of market entry and derives comparative statics results to show how competitive equilibrium entry modes vary with changes in various market conditions

the diversification and financial performance of us credit unions abstract for us credit unions revenue from non interest sources has increased significantly in recent years we investigate the impact of revenue diversification on financial performance for the period 1993 2004 the impact of a change in strategy that alters the share of non interest income is decomposed into a direct exposure effect reflecting the difference between interest and non interest bearing activities and an indirect exposure effect which reflects the effect of the institution s own degree of diversification on both risk adjusted and unadjusted returns measures a positive direct exposure effect is outweighed by a negative indirect exposure effect for all but the largest credit unions this may imply that similar diversification strategies are not appropriate for large and small credit unions small credit unions should eschew diversification and continue to operate as simple savings and loan institutions while large credit unions should be encouraged to exploit new product opportunities around their core expertise

fire sale fdi or business as usual motivated by a set of stylized facts we develop a model of cross border mergers and acquisitions ma 2 the proportion of foreign acquisitions in the same industry is lower 3 the average size of ownership stakes is lower and 4 the duration of acquisitions is lower i e acquisition stakes are more likely to be flipped we find support for 1 but not for the other three predictions the results thus suggest that foreign acquisitions in emerging markets do not differ in these important ways between crisis and normal periods

retail philanthropy firm size industry and business cycle this article investigates the effects of firm size profitability industry affiliation and the business cycle on retailer philanthropy the importance of industry and firm effects on giving was analyzed with regression models using industry fixed effects as well as firm strategy variables the analysis included instrumental variables methodology to account for simultaneity in the charitable giving profits relationship data were gathered from the irs corporate statistics of income sourcebook data that provide firm size class measures covering the entire firm size distribution ranging from small retailers up to large multi national retail firms retailer philanthropy was measured as the ratio of charitable contributions to total receipts important findings include a cubic relationship between retailer philanthropy and firm size industry effects stronger than those observed for retail profit and the absence of business cycle effects the empirical research relating retail charitable giving to firm attributes including firm size and advertising industry and business cycle factors are unique in the business ethics literature prior studies regarding the importance of industry on charitable giving utilized data across broad sectors of the economy firms from different sectors could be expected to differ in philanthropic approach due to differences in public contact as well as differences in public relations exposure the strong industry effects reported for this sample of exclusively retail firms with similar public contact provide strong evidence for the importance of industry in determining firms charitable strategies

industry equilibrium uncertainty and futures markets abstract this paper studies competitive long run industry equilibrium with uncertainty and futures trading we also provide a long run analysis of futures trading instead of the conventional short run analysis it is shown without using a general equilibrium model that given uncertain demand and risk aversion a bias backwardation or contango arises in long run industry equilibrium given risk neutrality such a bias however disappears we find that the occurrence of the bias depends not only on the existence of a risk premium but also on the length of the period considered each risk averse firm operates at a less efficient scale and moreover an expected spot price never accords with marginal cost when the expected spot price is less than marginal cost the risk averse firm can secure profit by selling futures contracts more than the amount of its output in the presence of production supply uncertainty a risk neutral firm operates with excess capacity under additive risk while the firm operates with proper capacity under multiplicative risk the key lies in whether its average cost curve is shifted by production risk

eighths sixteenths and market depth changes in tick size and liquidity provision on the nyse using limit order data provided by the nyse we investigate the impact of reducing the minimum tick size on the liquidity of the market while both spreads and depths quoted and on the limit order book declined after the nyse s change from eighths to sixteenths depth declined throughout the entire limit order book as well the combined e ect of smaller spreads and reduced cumulative limit order book depth has made liquidity demanders trading small orders better o however traders who submitted

tobin s q and the importance of focus in firm performance using tobin s q as a measure of performance we seek to estimate the relative importance of industry focus and share effects in determining firm performance our methods are analogous to those of richard schmalensee and like him we find that industry effects account for the majority of the explained variance however we also find that firm effects exist in the form of focus effects that is narrowly diversified firms do better than widely diversified firms we interpret this finding as consistent with profit maximization by firms with different factor endowments

u k and u s trading of british cross listed stocks an intraday analysis of market integration this article analyzes intraday patterns for u k and u s trading of british cross listed stocks for each market the intraday patterns for these stocks closely resemble those of otherwise similar non cross listed stocks there is a 2 hour period each day when cross listed stocks are traded both in new york and in london this overlap is characterized by concentrated trading as private information originating in new york gets incorporated into prices in both markets cross border competition for order flow tends to reduce already declining spreads in london by contrast new york specialists maintain high spreads during the overlap overall the evidence indicates that order flow for cross listed securities is segmented article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

stock market structure and volatility the procedure for opening stocks on the nyse appears to affect price volatility an analytical framework for assessing the magnitude of the structurally induced volatility is presented the ratio of variance of open to open returns to closeto close returns is shown to be consistently greater than one for nyse common stocks during the period 1982 through 1986 tbe greater volatility at the open is not attributable to the way in which public information is released since both the opento open return and the close to close return span the same period of time instead the greater volatility appears to be attributable to private information revealed in trading and to temporaryprice deviations induced by specialist and other traders the implied cost of immediacy at the open is significantly higher than at the close other empirical evidence in this article documents the volume of trading at the open the time delays between the exchange opening and the first transaction in a stock the difference in daytime volatility versus overnight volatility and the extent to which volatility is related to trading volume

do firm sizes and profit rates converge evidence on gibrat s law and the persistence of profits in the long run three panel unit root tests are applied to a 31 year firm size growth and profit rate data set for 96 large quoted uk firms all tests reject the unit root null for log size if the augmented dickey fuller autoregressions exclude a linear time trend if a linear trend is included the results are more ambiguous and appear to differ systematically between tests the view that firm growth is either random or near random does not receive unequivocal support in all tests there is however strong and consistent evidence of mean reversion in profit rates

estimating the performance effects of business groups in emerging markets business groups confederations of legally independent firms are ubiquitous in emerging economies yet very little is known about their effects on the performance of affiliated firms we conceive of business groups as responses to market failures and high transaction costs in doing so we develop hypotheses about the effects of group affiliation on firm profitability affiliation could either boost or depress firm profitability and members of a group are likely to earn rates of return similar to other members of the same group using a unique data set compiled largely from local sources we test for these effects in 14 emerging markets argentina brazil chile india indonesia israel mexico peru the philippines south africa south korea taiwan thailand and turkey we find evidence that business groups indeed affect the broad patterns of economic performance in 12 of the markets we examine group affiliation appears to have as profound an effect on profitability as does industry membership yet strategy scholars have a much clearer grasp of industries than of groups moreover membership in a group raises the profitability of the average group member in several of the markets we examine this runs contrary to the wisdom conventional in advanced economies that unrelated diversification depresses profitability overall our findings suggest that the roots of sustained differences in profitability may vary across institutional contexts conclusions drawn in one context may well not apply to another copyright 2001 john wiley sons ltd

does board gender diversity influence financial performance evidence from spain in recent years several countries have enacted guidelines and or mandatory laws to increase the presence of women on the boards of companies through these regulatory interventions the aim is to eradicate the social and labor grievances that women have traditionally experienced and which has relegated them to smaller scale jobs nevertheless and despite the advances achieved the female representation in the boardroom remains far from the desired levels in this context it is now necessary to enhance the advantages of board gender diversity from both ethical and economic points of view this article examines the relation between board gender diversity and economic results in spain the second country in the world to legally require gender quotas in boardrooms and historically characterized by a minimal female participation in the workforce based on a sample of 125 non financial firms listed on the madrid stock exchange from 2005 to 2009 our findings show that in the period analyzed the increase of the number of women on boards was over 98 this suggests that compulsory legislation offers an efficient framework to execute the recommendation of spanish codes of good governance by means of the increase in the number of women in the boards of firms furthermore we find that the increase in the number of women on the boards is positively related to higher economic results therefore both results suggest that gender diversity in boardrooms should be incremented mandatory laws being a key factor to do so

heterogeneity under competition a standard prediction of neoclassical microeconomics is that with perfect competition free entry and atomistic firms producing a homogeneous product equilibrium finds all firms employing that technology which has minimum average cost that competition drives out inefficient producers and reduces heterogeneity within industries is consequently a commonplace rule of thumb in economic thinking this paper demonstrates that demand uncertainty is sufficient to produce heterogeneity in the equilibrium employment of production technologies and to permit the coexistence of producers exhibiting different minimum average costs this heterogeneity is ubiquitous because the conditions for its presence are not stringent

the persistence of shocks to profitability in this study we use data for 1981 through 1994 on a large sample of u s companies to examine the persistence of incremental industry corporate parent and business specific effects on profitability our results indicate that the incremental effects of industry on profitability persist longer than the incremental effects of the corporate parent and of the specific business changes in industry structure have a more persistent impact on profitability than do changes in firm structure

q and the tax bias theory abstract a growing body of literature analyzes the variation in q the ratio of financial market value to asset current replacement cost and makes inferences about attributes such as monopoly power profitability managerial performance etc these studies ignore potential biases embedded in q that result from non neutral tax policies this study examines the association between q and tax biases and establishes that differences in accumulated depreciation tax shields explain significant variation in q the implication that q should be adjusted for tax biases before use in empirical research is examined further adjusting q for tax biases at least with the factors herein leads only to minor changes in econometric analyses

competencies and firm performance examining the causal ambiguity paradox resource based theory argues that resources must be valuable rare inimitable and lack substitutes to confer competitive advantage inimitability is a lynchpin of resource based theory and central to understanding the sustainability of competitive advantage although scholars recognize a positive relationship between causal ambiguity and inimitability the relationship among critical resources called competencies causal ambiguity and firm performance remains an unresolved conundrum one perspective suggests that causal ambiguity regarding competencies and performance is necessary among internal and external managers for sustainable competitive advantage because it severely limits imitation causal ambiguity therefore enhances firm performance another view holds that causal ambiguity places a constraint on the transfer and leveraging of these competencies within a firm in this case causal ambiguity may adversely influence firm performance this paper takes a resource based view to develop and test hypotheses that relate managers perceptions of causal ambiguity to their firm s performance the hypotheses examine relationships between firm performance and 1 causal ambiguity regarding the link between competencies and competitive advantage and 2 causally ambiguous characteristics of competencies research involving 224 executives in 17 organizations provides valuable insights into the relationships between causal ambiguity and firm performance a model is then developed based on these findings particular consideration is given to the differing ways top and middle managers in a firm may experience causal ambiguity and to how these differences may be understood and managed copyright 2001 john wiley sons ltd

cross border listings and price discovery evidence from u s listed canadian stocks we examine the contribution of cross listings to price discovery for a sample of canadian stocks listed on both the toronto stock exchange tse and a u s exchange we nd that priceson the tse and u s exchange are cointegrated and mutually adjusting the u s share of price discovery ranges from 0 2 percent to 98 2 percent with an average of 38 1 percent the u s share is directly related to the u s share of trading and to the ratio of proportions of informative tradeson the u s exchange and the tse and inversely related to the ratio of bid ask spreads with the enhanced globalization of nancial markets the number of non u s rms cross listing shares on a u s exchange has substantially increased attracting non u s listings is now a top priority of the u s stock exchanges at the end of 2000 420 non u s rmswere listed on the new york stock exchange nyse the number of foreign rmslisted on nasdaq waseven higher the popularity of international cross listings has prompted many academic studies on the topic 1 most of these studies focus on the bene ts of international cross listings including the reduced cost of capital and the enhanced liquidity of a rm s stock studiessuch asalexander eun and janakiramanan 1987 1988 and foerster and karolyi 1993 suggest that the cost of capital declines because the portion of the risk premium that compensates for cross border investment barriers dissipates miller 1999 and foerster and karolyi 1999 propose increased investor recognition as another possible explanation several studies examine changes in trading volume and costs due to international cross listing foerster and karolyi 1998 nd that the bid ask spreads in canada decrease after the cross listing of canadian stocks in the united states domowitz glen and madhavan 1998 suggest that the impact of cross listing is complex and depends on the degree of quote transparency that is the extent to which price information is observable in the two markets smith and so anos 1997 examine if cross listing is a zerosum game with increased trading in the united states being oiset by reduced

opening prices on the new york stock exchange abstract the prices of opening transactions on the new york stock exchange are determined quite differently from prices of subsequent transactions this paper tests the null hypothesis that opening prices are as representative of contemporaneous equilibrium stock values as subsequent intra day transactions prices with one possible exception there is no basis for rejecting this hypothesis despite the very different trading mechanisms used in opening trades and intra day trades

economic fluctuations market power and returns to scale evidence from firm level data recent research on aggregate fluctuations coupled with ongoing work in industrial organization has renewed interest in the existence magnitude and cyclical pattern of market power and the extent of increasing returns to scale by exploiting restrictions from dynamic theory and information from financial markets we present a framework for generating quantitative evidence on market power and returns to scale tailoring the econometric model to firm level panel data we calculate the percentage differential between price and marginal cost the lerner index in terms of the parameters from the econometric system results for firms in eleven industries indicate that there is a great deal of heterogeneity in the extent of market power industries with significantly positive lerner indices tend to have substantial increasing returns in the production technology we find that there is only a modest relation between our estimated lerner indices and traditional measures of market power and that when market power varies temporally it is usually procyclical thus variations in the markup of price over marginal cost may help dampen aggregate economic fluctuations

the dependence between hourly prices and trading volume this study provides evidence on joint characteristics of hourly common stock trading vol ume and returns on the new york stock exchange average volume traded shows signifi cant differences across trading hours of the day and across days of the week average returns differ across hours ofthe day and to some extent across days ofthe week there is a strong contemporaneous relation between trading volume and returns and also a rela tion between trading volume and returns lagged up to four hours furthermore the trading volume returns relation is steeper for positive returns than for nonpositive returns

gender diversity in the boardroom and firm financial performance the monitoring role performed by the board of directors is an important corporate governance control mechanism especially in countries where external mechanisms are less well developed the gender composition of the board can affect the quality of this monitoring role and thus the financial performance of the firm this is part of the business case for female participation on boards though arguments may also be framed in terms of ethical considerations while the issue of board gender diversity has attracted growing research interest in recent years most empirical results are based on u s data this article adds to a growing number of non u s studies by investigating the link between the gender diversity of the board and firm financial performance in spain a country which historically has had minimal female participation in the workforce but which has now introduced legislation to improve equality of opportunities we investigate the topic using panel data analysis and find that gender diversity as measured by the percentage of women on the board and by the blau and shannon indices has a positive effect on firm value and that the opposite causal relationship is not significant our study suggests that investors in spain do not penalise firms which increase their female board membership and that greater gender diversity may generate economic gains

when does corporate venture capital investment create firm value abstract over the past decade billions of dollars have been invested by established companies in entrepreneurial ventures what is often referred to as corporate venture capital yet there is little systematic evidence that corporate venture capital investment creates value to investing firms scholars have suggested that established firms face underlying challenges when investing corporate venture capital namely structural deficiencies inherent in corporate venture capital may inhibit financial gains however firm value may still be created as a result of other benefits from investing primarily providing a window onto novel technology in this paper we propose that corporate venture capital investment will create greater firm value when firms explicitly pursue corporate venture capital to harness novel technology using a panel of cvc investments we present evidence consistent with our proposition the findings are robust to various specifications and remain unchanged even after controlling for unobserved heterogeneity in investing firms our results have important implications for corporate venture capital in particular and technology strategy in general

new venture strategy and profitability a venture capitalist s assessment abstract this study uses theoretically justified criteria from the industrial organization io strategy literature and applies it to a new domain namely venture capitalists decision making specifically the study investigates the types of information venture capitalists utilize when evaluating new ventures and how venture capitalists use this information to assess likely new venture profitability in the interest of advancing our understanding of the decision making policies of venture capitalists this study addresses many of the limitations of previous research a review of io research suggests important relationships between a number of strategy variables and new venture profitability some of the relationships proposed by io strategy research are contingent in nature the strategy variables and their relationships with profitability are investigated in the domain of venture capitalists decision making individual and aggregate decision making analyses identified those strategy variables criteria venture capitalists utilize in assessing likely new venture profitability namely timing key success factor stability lead time competitive rivalry educational capability industry related competence timing key success factor stability interaction timing lead time interaction and timing educational capability interaction on average the most important criterion for venture capitalists in their assessment of profitability is industry related competence the second tier of importance is competitive rivalry timing and educational capability the third tier of importance is lead time key success factor stability and timing lead time interaction other interactions are less important therefore while venture capitalists use contingent decision policies main effects dominate if venture capitalists use a reported 8 to 12 minutes on average to evaluate a business plan sandberg 1986 then this study s findings may help the inexperienced venture capitalist allocate time towards assessing those attributes of primary importance although more complex relationships exist between the attributes the inexperienced venture capitalist can take comfort from this study s findings that main effects dominant amongst senior venture capitalists senior venture capitalists may take less comfort from their importance placed on main effects in light of research from io which suggests the importance of contingent relationships the results may also have practical application towards training how should venture capital firms train their new employees should venture capital firms rely solely on experienced venture capitalists lecturing the inexperienced on the criteria they use in assessing a new venture proposal like most decision makers venture capitalists have limited insight into their assessments and venture capital firms need to be aware of the gap between espoused policies and policies in use the information being taught needs to be supplemented with venture capitalists decision making research that investigates decision policies in use such as this study venture capitalist training could also involve experiential learning in conjunction with cognitive feedback about the decision policies used to accelerate the learning process experiential learning using cognitive feedback maximizes industry related learning while minimizing the cost of inexperienced decisions for the entrepreneur seeking capital this increased understanding of venture capitalists decision making may help them better target their business plans and presentations at those criteria venture capitalists find most critical to the profitability of a new venture

seeing the big picture the influence of industry diversification and business strategy on performance much of the strategic management literature separates industry corporate and business levels of analysis and empirical studies tend to examine these levels independently not addressing how indu

corporate and industry effects on business unit competitive position we partition the variances of market shares which we use as surrogates for competitive position of the business units of all public manufacturing companies available in the trinet data base into industry factors corporate parent specific factors and business unit specific factors our results differ somewhat from rumelt s 1991 which decomposed variances in profitability we find that corporate parent effects on market share are considerably greater than zero when lines of business are defined more narrowly when small business units are included and when firms are medium sized our results suggest that the relative importance of corporate industry and business unit effects depends on the types of criteria such as the level of industry aggregation whether small business units are included and firm size that are used to construct samples copyright 2000 john wiley sons ltd

dynamic capabilities what are they this paper focuses on dynamic capabilities and more generally the resource based view of the firm we argue that dynamic capabilities are a set of specific and identifiable processes such as product development strategic decision making and alliancing they are neither vague nor tautological although dynamic capabilities are idiosyncratic in their details and path dependent in their emergence they have significant commonalities across firms popularly termed best practice this suggests that they are more homogeneous fungible equifinal and substitutable than is usually assumed in moderately dynamic markets dynamic capabilities resemble the traditional conception of routines they are detailed analytic stable processes with predictable outcomes in contrast in high velocity markets they are simple highly experiential and fragile processes with unpredictable outcomes finally well known learning mechanisms guide the evolution of dynamic capabilities in moderately dynamic markets the evolutionary emphasis is on variation in high velocity markets it is on selection at the level of rbv we conclude that traditional rbv misidentifies the locus of long term competitive advantage in dynamic markets overemphasizes the strategic logic of leverage and reaches a boundary condition in high velocity markets copyright 2000 john wiley sons ltd

a capability based view of competitive heterogeneity the question of how firms differ is paramount to strategy scholars this question has motivated empirical research on the factors influencing performance differences among close competitors it also has motivated work on factors that increase or decrease the mean performance of firms in an industry theories about resources and capabilities tend to dominate discussions of heterogeneity in performance and superior performance yet the strategy field lacks a cumulative body of empirical work showing how firms differ this article derives conclusions and questions from empirical work on capabilities we then discuss work that complements but lies beyond the boundaries of traditional capabilities research we conclude by suggesting approaches to and areas of future work

how much does industry matter an alternative empirical test empirical studies using federal trade commission line of business data have reported that industry membership explains between 17 percent and 20 percent of financial performance variance among firms this study attempts to replicate these findings using an alternative sample and a methodology based on executives perceptions the results support those reported in previous studies with industry factors explaining about 20 percent of overall performance variance moreover the analysis produces empirically derived industry factors and examines their relative power in explaining industry performance variance

a model of competitive stock trading volume a model of competitive stock trading is developed in which investors are heterogeneous in their information and private investment opportunities and rationally trade for both informational and noninformational motives i examine the link between the nature of heterogeneity among investors and the behavior of trading volume and its relation to price dynamics it is found that volume is positively correlated with absolute changes in prices and dividends i show that informational trading and noninformational trading lead to different dynamic relations between trading volume and stock returns

the validity of profits structure studies with particular reference to the ftc s line of business data the simple proposition that consumerdamaging collusion is more likely to occur when there are fewer competitors has given rise not only to legal restrictions of economic activity thought to restrict output but also to an enormous amount of empirical work attempting to relate market concentration to the exercise of monopoly power most such studies measured market structure by an index of concentration for example four firm concentration or herfindahl and performance by accounting profit for example net profit divided by assets or price cost margins sales less direct costs divided by sales from the positive statistically significant correlations often found between greater concentration and profit with other factors presumably accounted for some researchers conclude that increases in concentration are anticompetitive and that concentration therefore is bad the concentration profits studies have been criticized essentially on two grounds one is that the positive relationship is not indicative of collusive behavior in particular oliver williamson 1968 john mcgee 1971 harold demsetz 1973 1974 and sam peltzman 1977 point out that higher profits could result from efficiencies experienced by large firms which resulted both in greater market shares and high levels of concentration analytical arguments show that higher profits logically follow as much from lower costs that are associated with higher levels of concentration as from collusion determined higher prices some empirical evidence that supports this belief is presented by demsetz peltzman and bradley gale and ben branch 1982 however their findings have been contested on the grounds that the data used are biased or inadequate or that the researchers have not demonstrated that the observed higher profits greater concentration relationship was caused by lower costs 2 the second criticism is that available data provide an inadequate basis for such conclusions the concentration numbers are based usually on industries defined by the commerce department s standard industrial classifications sic the sic definitions tend to be supply production rather than demand determined include nonhomogeneous products and exclude sales of similar products that are included in different sic groups or are imported the profit data are taken from accounting reports that provide poor measures of economic values weiss 1974 describes many of these problems however he does not believe that these shortcomings invalidate the studies as weiss 1979 concludes

the effect of product diversification strategies on the performance of health insurance conglomerates abstractthe conglomerate organizational structure of health insurers suggests two distinct methods of product diversification the first is firm level diversification or diversification within individual affiliates and the second is conglomerate level diversification or diversification across affiliates of the conglomerate we hypothesize that using both firm and conglomerate level diversification may magnify the costs or benefits of diversification on the financial performance of the conglomerate our results confirm this hypothesis and suggest a positive relation between health insurer financial performance and the use of both product line diversification methods our results not only contribute to the body of literature related to corporate diversification but are also important to policymakers and all health insurance market participants as portions of the affordable care act continue to be implemented

the competitive effects of us decimalization evidence from the us listed canadian stocks abstract this paper analyzes the impact of us decimalization on the canadian stocks listed on the toronto stock exchange tse and either the new york stock exchange nyse or national association of securities dealers automated quotation system nasdaq in the us using a sample of 126 firms we find that the us trading of these stocks increases after decimalization but this increase is not at the expense of tse volume indeed the tse volume increases substantially for those securities that are traded on nasdaq and increases marginally for those securities that are traded on the nyse most of the increase in volume is in retail sized trades the bid ask spreads and the quote depths decline on all exchanges but by a greater amount in the us than in canada the depths on the nyse decline from being above the tse depths to well below the tse depths we also find that the decline in the tse spread is directly related to the size of the firm and to the decline in the us spread and is inversely related to the pre decimalization ratio of spreads on the us exchange and the tse overall our results indicate that the us decimalization had the desired positive impact on trading in both the us and canada with a decrease in spreads and an increase in retail sized trading

stochastically dominating shifts and the competitive firm abstract the production responses of the competitive firm to stochastically dominating shifts in the distribution of output price have been the object of much research in a recent paper simpson and sproule metroeconomica 51 2 2000 168 181 present five sets of sufficient conditions any one of which may be used to jointly sign the production responses of the competitive firm to first second and third order stochastically dominating shifts this paper demonstrates that one of the conditions outlined in the above mentioned reference is unnecessarily restrictive in the case of the logarithmic and the positive power utility functions

long lived private information and imperfect competition we develop a multi period auction model in which multiple privately informed agents strategically exploit their long lived information we show that such traders compete aggressively and cause most of their common private information to be revealed very rapidly in the limit as the interval between auctions approaches zero market depth becomes infinite and all private information is revealed immediately these results are in contrast to those of kyle 1985 in which the monopolistic informed trader causes his information to be incorporated into prices gradually and when the interval between auctions is vanishingly small market depth is constant over time fama 1970 defines a strong form efficient market as one in which security prices fully reflect all available information including both publicly and privately held information in a pioneering and influential article kyle 1985 develops a model in which a single privately informed trader with long lived information optimally exploits his monopoly power over time kyle s 1985 main results are i the informed trader trades in a gradual manner so that his information is incorporated into prices at a slow almost linear rate and ii when auctions are held continuously the depth of the market is constant over time however kyle s 1985 assumption of a single informed trader is strong in the sense that in actual financial markets it is reasonable to expect that at least a few players will have access to private information and will trade in the knowledge that they will face competition with other informed agents in the market 1 we develop a multi period auction model in which multiple strategic informed traders optimally exploit their long lived informational advantage we thus explore the restrictiveness of kyle s assumption of a single informed trader and also examine

success in high technology markets is marketing capability critical we propose a conceptual framework with the resource based view rbv of the firm as its theoretical underpinning to explain interfirm differences in firms profitability in high technology markets in terms of differences in their functional capabilities specifically we suggest that marketing r d and operations capabilities along with interactions among these capabilities are important determinants of relative financial performance within the industry this paper contributes to the rbv literature by proposing the input output perspective to conceptualize the notion of capabilities specifically this approach entails modeling a firm s functional activities viz marketing r d and operations as transformation functions that relate the productive factors resources to its functional objectives if the firm were to deploy these resources most efficiently any underattainment of the functional objective then is attributable to functional inefficiency or equivalently to a lower functional capability of the firm the input output conceptualization of a firm s capabilities is then estimated using the stochastic frontier estimation sfe methodology sfe provides the appropriate econometric technique to empirically estimate the efficient frontier and hence the level of efficiency achieved by the various firms our study contributes to a number of literatures both methodologically and substantively first it contributes both conceptually and methodologically to the rbv literature conceptually our study suggests that firm capabilities can be viewed in an input output framework methodologically the study suggests the use of stochastic frontier estimation to operationalize and estimate firm capabilities this methodology is to the best of our knowledge the first to allow the researcher manager to infer capabilities from archival data substantively our study contributes to the literature on market orientation by suggesting that a stronger market orientation of a firm should be reflected in a higher marketing capability it also adds to the literature on design for manufacturability by explicating the complementarity among the various functional capabilities and offering empirical evidence on their relative importance in influencing a firm s performance finally our study builds on prior literature that has highlighted the importance of marketing r d coordination as important determinants of new product development and success we highlight below some of our main findings 1 a strong base of innovative technologies enhances a firm s sales by favorably influencing consumers expectations about the externality benefits associated with its product this suggests that a past track record of consistent innovation is a credible signal to current and potential customers of the firm s continued excellence in a technologically evolving market given the importance of influencing customers managers need to tailor their marketing activities around the need to inform customers of the technological excellence of their firm thus customers need to be informed of the innovative technologies that the firm possesses and of the future r d initiatives undertaken by it similarly any potential applications of innovative technology developed by the firm and of technologies under development should be emphasized 2 marketing capability has its greatest impact on the quality adjusted innovative output for firms that have a strong technological base in other words firms with a strong r d base are the ones with the most to gain from a strong marketing capability 3 marketing capability strongly influences the width of applicability of innovations i e a firm s marketing capability enhances its ability to generate innovative technologies that have applications across a range of industries this result carries a strong message for managers a strong market orientation is one of the most fertile sources of ideas for innovation thus marketing needs to be involved from the beginning of the innovation process namely right at the stage when technological ideas are being generated 5 the most important determinant of a firm s performance is the interaction of marketing and r d capabilities this supports the assertion that firms in high technology markets need to excel at two things the ability to come up with innovations constantly and the ability to commercialize these innovations into the kinds of products that capture consumer needs and preferences this finding offers further evidence on the importance of coordination between r d and marketing as suggested in the extant marketing literature finally using archival data our methodology can be used to benchmark a firm s capabilities with other firms in the industry along various functional dimensions this would be an important step in making more informed resource allocation decisions thus the firm can spend more money on those capabilities where it most lags the competition or on those capabilities that are shown to have the maximum impact on firm performance

are internal capital markets efficient using segment information from compustat we find that the investment by a segment of a diversified firm depends on the cash flow of the firm s other segments but significantly less than it depends on its own cash flow the investment by segments of highly diversified firms is less sensitive to their cash flow than the investment of comparable single segment firms the sensitivity of a segment s investment to the cash flow of other segments does not depend on whether its investment opportunities are better than those of the firm s other segments

redefining industry structure for the information age we are entering a new competitive age in which the basis of competition is being fundamentally altered through the introduction of advanced information technologies and public communication infrastructures such as the internet in these environments the nature and locus of competition will radically alter as information becomes an increasingly important resource this paper develops ideas around the strategic characteristics of information information separability and information specificity moreover it attempts to redefine the nature of industry structure in such a competitive environment by examining what constitutes the real boundaries of competition industry concentration related diversification and innovation for firms competing in the information age 1998 john wiley sons ltd

cash flow management and manufacturing firm financial performance a longitudinal perspective abstract a firm s cash flow policies which manage working capital in the form of cash receivables from customers inventory holdings and cash payments to suppliers are inexorably linked to the firm s operations building on earlier research this study i extends prior studies by examining the relationships between changes in cash flow measures and changes in firm financial performance using a longitudinal sample of firm data and ii investigates the direction of the relationship between quarterly changes in cash flow positions and firm financial performance this study is conducted using the generalized estimating equations gee methodology to analyze a longitudinal sample of eight quarters of cash flow and financial performance data from 1233 manufacturing firms the analyses find that changes in the widely used cash conversion cycle ccc metric do not relate to changes in firm performance however changes in the less used operating cash cycle occ metric are found to be significantly associated with changes in tobin s q this examination of how changes in specific cash flow measures relate to changes in tobin s q shows that both reductions in accounts receivables measured as days of sales outstanding dso and reductions in inventory measured as days of inventory outstanding dio relate to firm financial performance improvements that persist for several quarters endogeneity tests of whether a firm s cash flow management strategy leads to changes in firm performance or if the cash flow strategy is a byproduct of firm performance suggest that reductions in dso lead to improved firm financial performance

do markets differ much this essay reports the results of a crosssection study of differences in accounting profitability that sheds light on some basic controversies in industrial economics most previous cross section studies in this field have been concerned with testing hypotheses about structural coefficients in models meant to apply to essentially all markets as we have learned more about the difficulties of constructing such general models and of performing tests on their structural parameters properly structural cross section analysis has fallen out of fashion in contrast to most of the cross section literature the analysis reported here is fundamentally descriptive it does not attempt directly to estimate or to test hypotheses about structural parameters i hope to show by example that one can perform illuminating analysis of cross section data without a host of controversial maintained hypotheses cross section data can yield interesting stylized facts to guide both general theorizing and empirical analysis of specific industries even if they cannot easily support full blown structural estimation one can view the sort of search for stylized facts conducted here as either a replacement for or an input to interindustry structural estimation depending on one s feeling about the long run potential of that research approach this study also departs from much of the cross section literature by being fundamentally concerned with the importance of various effects not just with coefficient signs and t statistics in particular this essay provides estimates of the relative importance of firm market and market share differences in the determination of business unit divisional profitability in u s manufacturing using 1975 data from the line of business program of the u s federal trade commission ftc i find support neither for the existence of firm effects nor for the importance of market share effects moreover while industry effects apparently exist and are important they appear to be negatively correlated with seller concentration in these data section i relates firm market and share effects to current issues and controversies in industrial economics and thus supplies the motivation for our empirical analysis the remainder of the essay treats the data and

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

towards an economic theory of the multiproduct firm this paper outlines a theory of the multiproduct firm important building blocks include excess capacity and its creation market imperfections and the peculiarities of organizational knowledge including its fungible and taut character a framework is adopted in which profit seeking firms are seen to diversify in order to avoid the high transactions costs associated with using various markets to trade the services of various specialized assets neoclassical explanations of the multiproduct firm are shown to be seriously deficient

diversification ricardian rents and tobin s q according to prevailing theory firms diversify in response to excess capacity of factors that are subject to market failure by probing into the heterogeneity of these factors we develop the corollary that firms that elect to diversify most widely should expect the lowest average rents an empirical test with tobin s q as the measure of rents is consistent with this theory

competitive production and increases in risk the theory of the firm is a monumental achievement of neoclassical economics without this engine of analysis it would be difficult if not impossible to comprehend the pricing output and input decisions of firms as they respond to routine events like the imposition of a tax the opening of a new market a technical innovation and a sudden shortage of a key factor of production it is remarkable that this theory has been successful in explaining behavior that to a large extent is motivated by both profit and risk when the theory itself has only explicitly considered the profit motive this is not the place to dwell on the evolution of economic theory it suffices to note that there are many important economic phenomena that the purely deterministic theory does not explain the purpose of this note is to elucidate the way in which risk influences the output decisions of riskaverse entrepreneurs and the number of riskneutral firms in a competitive industry in both cases the predicted behavior differs from that of the deterministic theory in our study we shall restrict attention to the behavior of firms in a single period 2 setting the firm has no control over price and because storage makes no sense simply sells all of its output at the going price the source of uncertainty is the requirement that the firm produce before price is known where the price is a random variable with a known probability distribution the firm chooses output to maximize its expected utility it is well known that in the presence of uncertainty the optimal output of the risk averse firm is less than that of the riskneutral firm moreover increases in risk aversion in the sense of arrow and john pratt lead to further diminutions in output on the other hand for a fixed degree of risk aversion the change in output induced by a mean preserving increase in risk depends on the shape of the cost curve as well as the sign of the third derivative of the utility function u and the sign of the second derivative of qu q next competitive industry behavior under uncertainty is analyzed in order to isolate the effect of uncertainty firms are assumed to be risk neutral we show that both the optimal number of firms in the industry and excess capacity increase as industry output becomes riskier results like this are important for probabilistic economics for it would be unfortunate if the vitality of the stochastic theory of the firm relied solely on the controversial assumption of risk aversion 3

the relative influence of industry and corporation on business segment performance an alternative estimate rumelt s 1991 widely cited paper presents estimates of the relative influence of industry corporate business unit and other influences on business unit profitability he finds corporations explain almost none of the variability in business unit profitability using a simultaneous equation model we provide alternative estimates of the influence of industry and corporation on business unit performance we find that both corporations and industries influence business unit profitability but corporations have the larger influence copyright 1999 john wiley sons ltd

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