proper risk aversion on introduit et on etudie une condition comportementale significative sur les fonctions d utilite pour les richesses qui signifie qu une loterie indesirable ne peut jamais etre rendue desirable par la presence d une loterie indesirable independante

standard risk aversion this paper introduces the concept of standard risk aversion a von neumann morgenstern utility function has standard risk aversion if any risk makes a small reduction in wealth more painful in the sense of an increased reduction in expected utility also makes any undesirable independent risk more painful it is shown that given monotonicity and concavity the combination of decreasing absolute risk aversion and decreasing absolute prudence is necessary and sufficient for standard risk aversion standard risk aversion is shown to imply not only pratt and zeckhauser s proper risk aversion individually undesirable independent risks always being jointly undesirable but also that being forced to face an undesirable risk reduces the optimal investment in a risky security with and independent return similar results are established for the effect of broad class of increases in one risk on the desirability of or optimal investment in a second independent risk

investor valuation of the abandonment option abstract we investigate whether investors price the option to abandon a firm at its exit value theory prices this real option as an american put with both a stochastic strike price exit value and a stochastic value of the underlying security the value of cash flows the empirical implications are that firm value increases in exit value after controlling for expected going concern cash flows and that more generalizable assets produce more abandonment option value using discounted earnings forecasts to proxy for expected cash flows and prior literature to categorize asset generalizability we find strong support for the predictions of abandonment option theory

long term attachments and long run firm rates of return long term attachments between workers and firms are common numerous studies have examined worker returns to tenure but little is known of firm returns to firm worker matches yet these attachments represent a human capital asset quasi held by the firm which is not captured by traditional accounting measures of firm assets firms with large quasi holdings of human capital will have higher measured return on assets other things equal analysis of data on 250 large manufacturing firms supports the view that firms profit from long term attachments with their workers consequently unmeasured human capital assets contribute to the explanation of persistence in measured long run excess profits across firms

the transaction costs paradigm 1998 presidential address western economic association 1998 presidential address western economic association though the idea can be traced to david hume and adam smith the path breaking first economic analysis of transaction costs did not occur until 1937 when ronald coase published the nature of the firm 1 stigler and boulding perspicaciously reprinted coase s paper in the famous aea readings in price theory 1952 but for a quarter of a century it had no real impact on the profession in the 1940s two significant works were published which touched on transaction costs but these sparks did not ignite a fire 2 the transaction costs paradigm began to blossom in the early 1960s again it was coase who supplied the primum mobile his great paper on social cost was published in early 1961 though aaron director dated that issue of journal of law and economics as 1960 ronald had company this time george stigler s article on information cost came out later the same year and kenneth arrow s work on the appropriability of returns to inventions appeared in 1962 3 the combined wisdom of three brilliant men would perhaps not have been enough except that by the early 1960s science was on their side jargonistic articles on economic development flooded the journals throughout the 1950s but by 1960 economists were beginning to question the explanatory power of this kind of economics after the clarion call of friedman s work on the consumption function a few years earlier in 1957 the great methodological debate began 4 the demand for testable implications was becoming more vociferous by the day and the tendency for economists to be policy oriented was losing hold as the keynesian revolution waned 5 the tide of economic explanation was beginning to swell and the transaction costs paradigm was the beautiful goddess who emerged from the foam i began graduate work at ucla in 1961 and after my ma a year later i turned to audit the price theory lectures of jack hirshleifer and armen alchian the straight as student who knew by heart everything about market imperfections was told that this kind of knowledge did not count by 1963 graduate students at ucla s department of economics were all talking property rights and transaction costs now i knew coase and stigler by heart and could even handle the questions on pricing behavior and mergers at the end of friedman s price theory 1962 moreover i was the luckiest of the lot because in late 1963 armen gave me a copy of a manuscript by harold demsetz 6 one of the great expositors of our time harold wrote about property rights and transaction costs with such clarity and force that i decided then and there to work on these topics for my doctorate since that time my research has all been on the same track in this address i shall confine discussion of the transaction costs paradigm to my own involvement this limitation is imposed by necessity i like to sail the strange seas of thought alone and have seldom read other people s publications with the seriousness they deserve after i left chicago in 1969 from 1976 to 1982 i spent my time on contracts in the petroleum industry and from 1982 to now my research has concentrated on economic reforms in china although these works are all transaction costs oriented the former is not in print because it is proprietary while the latter has mostly been published in chinese after more than half a lifetime on the seashore however i feel it is time to share my small collection of pebbles with colleagues in the wea still you would not be wrong if you feel that i am addressing the subject as if i were a stranger returning from another planet i the nature of transaction costs transaction costs must be defined to be all the costs which do not exist in a robinson crusoe economy this broad definition is necessary because it is often impossible to separate one type of transaction cost from another the toll collector of a bridge serves not only transacting customers but also police against trespassers

evaluating interval forecasts a complete theory for evaluating interval forecasts has not been worked out to date most of the literature implicitly assumes homoskedastic errors even when this is clearly violated and proceed by merely testing for correct unconditional coverage consequently i set out to build a consistent framework for conditional interval forecast evaluation which is crucial when higher order moment dynamics are present the new methodology is demonstrated in an application to the exchange rate forecasting procedures advocated in risk management

unexpected tails in risk measurement some international evidence risk management critically depends on the assumptions made about the distribution of stock returns this paper applies extreme value methods to investigate the limiting distribution of the extreme returns of the nikkei225 ftse100 and s p500 indices as well as the indices of some of largest sectors in japan uk and us the results indicate that the much celebrated generalised extreme value distribution does not provide the most accurate description of the minima since the generalised logistic distribution performs better due to its ability to better capture the fat tails of returns the time varying nature of extremes is also confirmed while a simulation exercise adds to the robustness of our results it is also shown that the findings may have important implications for risk models such as var and expected shortfall since risk measures which cannot capture the fatness of tails of the empirical distribution function of returns may lead to serious underestimation of downside risk

the search for a critical concentration revisited this paper examines the issue of whether there is a four firm critical concentration ratio above which industries earn supranormal profits a statistical test is employed to investigate the functional stability of the estimated relationship although the initial results indicate a range in the concentration ratio of between 0 48 and 0 55 over which the functional relationship destabilizes additional analysis fails to identify a clear break in the concentration profitability relationship it can only be concluded that a critical concentration does not appear to exist

management ownership and market valuation an empirical analysis we investigate the relationship between management ownership and market valuation of the firm as measured by tobin s q in a 1980 cross section of 371 fortune 500 firms we find evidence of a significant nonmonotonic relationship tobin s q first increases then declines and finally rises slightly as ownership by the board of directors rises for older firms there is evidence that q is lower when the firm is run by a member of the founding family than when it is run by an officer unrelated to the founder

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

efficiency versus collusion a reformulation of the weiss test the weiss test has been used to discriminate between the efficiency and collusion hypotheses using a conventional oligopoly model we show that the test is valid for the former hypothesis but not the latter contrary to recent emperical studies we find that a negative coefficient on concentration in profitability equations does not refute the collusion hypothesis in fact this finding supports the hypothesis if the sample is dominated by small firms

the intertemporal stability of the concentration margins relationship using a longitudinal data base we find that there has been a substantial narrowing of the spread between the price cost margins of concentrated and unconcentrated industries including measures of macroeconomic fluctuations into standard price cost margin regressions we find significant differences in cyclical behavior across market structure we also explore a possible explanation unionization for differences in cyclical behavior finally we investigate the degree to which our results are affected by the potential simultaneity of concentration advertising and the price cost margin

a coasian perspective on informal rights assignment among waste pickers in the philippines this paper examines in light of the coase theorem how delineation of a degree of enforceable rights for a previously open access dumpsite in the philippines would affect market transactions of waste pickers it shows that a simplistic exclusion solution was not enough to constrain rent dissipation of recyclables in the primeval land fill some intervention of non government organisations backed by some initial government assistance were found helpful in reducing transaction costs to sustain operations and promote innovations and initiatives from the scavengers themselves despite obvious external economic difficulties

the competitive effects of resale price maintenance the competitive effects of resale price maintenance rpm are theoretically diverse rpm can cause allocation distortions or promote productive efficiencies in the distribution process moreover extant cross sectional empirical evidence is incapable of distinguishing among the potentially disparate effects of rpm this paper conducts hypothesis tests of the alternative theories of rpm the empirical framework relates estimates of the effects of rpm for a cross section of observations to necessary conditions of the alternative models this analysis indicates that rpm is used both to foster cartels and promote efficiencies in the distribution process this result is consistent with the growing body of case study analysis that suggests that rpm is used for a variety of reasons this result also questions the current per se illegal status of rpm in the antitrust laws evidence is also provided concerning the strategic interaction between manufacturers and dealers in the distribution process and the use of financial data in analyzing propositions in industrial organization

foreign direct investment theories entry barriers and reverse investments in u s manufacturing industries this paper investigates empirically whether industrial organization oriented fdi theories explain the recent phenomenon of reverse foreign direct investment in the u s based on the distribution of fdi in two digit sic manufacturing industries we find that capital and advertising intensities act as entry barriers to foreign investments in the u s we also observe that foreign multinationals are attracted by the u s market size and that they invest heavily in industries with intensive r d combined with marketing efforts

size and performance of banking firms testing the predictions of theory abstract in recent years two important literatures on the theory of banking firms have developed one examines the economic functions of banks in environments in which agents are asymmetrically informed another considers the incentive effects moral hazard resulting from deposit insurance both theories make predictions about the relation between banking firm size and performance an empirical analysis of large bank holding companies investigates measures of market valuation and risk of failure limited support is provided for either set of theoretical predictions

from value at risk to stress testing the extreme value approach this article presents an application of extreme value theory to compute the value at risk of a market position in statistics extremes of a random process refer to the lowest observation the minimum and to the highest observation the maximum over a given time period extreme value theory gives some interesting results about the distribution of extreme returns in particular the limiting distribution of extreme returns observed over a long time period is largely independent of the distribution of returns itself in financial markets extreme price movements correspond to market corrections during ordinary periods and also to stock market crashes bond market collapses or foreign exchange crises during extraordinary periods an approach based on extreme values to compute the var thus covers market conditions ranging from the usual environment considered by the existing var methods to the financial crises which are the focus of stress testing univariate extreme value theory is used to compute the var of a fully aggregated position while multivariate extreme value theory is used to compute the var of a position decomposed on risk factors 2000 elsevier science b v all rights reserved

did railroad deregulation lead to monopoly pricing an application of q this paper asks whether given that railroads now have almost total freedom to set their rates competition is sufficie nt to keep railroads from making supracompetitive profits previous a ttempts to measure railroads profits rely on accounting measures of the rate of return but recent work raises serious doubts about the a ccuracy of these measures therefore this paper uses tobin s q the r atio of a firm s market value to the replacement cost of its assets the values of q show that railroads are not making supracompetitive p rofits thus there is no justification for increased regulation of ra ilroad rates copyright 1987 by the university of chicago

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

on the measurement of tobin s q abstract we examine the methods commonly employed to estimate tobin s q ratios and find them to be flawed in design and arbitrary in implementation we propose an alternative procedure which is both simpler and more accurate the key to the procedure is an improved measure of fixed asset replacement costs through the proper identification of the vintages of fixed assets that are in place for a firm application of this procedure to a large sample of nonfinancial corporations indicates that existing methods generally produce downward biased measures of q and can result in errors in the ordering of firms by their q s

beta market power and wage rate uncertainty this paper derives the formal relationship between a firm s beta and tobin s q ratio with both price and wage uncertainty present wage uncertainty is shown to affect the sign and magnitude of the relationship with q interpreted as an index of the market power while previous models suggest that systematic risk and market power are negatively related this result depends either on excluding wage uncertainty or on introducing it with unrealistic restrictions by deriving a more ambiguous relationship than other authors a plausible explanation of why empirical research has produced conflicting evidence of the sign of this relationship is provided copyright 1994 by blackwell publishing ltd

firm growth and efficiency in the banking industry a new test of the efficient structure hypothesis abstract in this paper we propose a new test of the efficient structure es hypothesis which predicts that efficient firms come out ahead in competition and grow as a result our test has significant advantages over existing ones because it is more direct and can jointly test the so called quiet life hypothesis which predicts that in a concentrated market firms do not minimize costs we then apply this test to large banks in japan consistent with the es hypothesis we find that more efficient banks become larger we also find that market concentration reduces banks efficiency which supports the quiet life hypothesis these findings imply that there is an intriguing growth efficiency dynamic throughout banks life cycle although our findings also suggest that the es hypothesis dominates the quiet life hypothesis in terms of economic impact

single equation multiple regression methodology is it an appropriate methodology for the estimation of the structure performance relationship in banking abstract tests of the structure performance paradigm of the industrial organization literature have been carried out almost exclusively using a single equation multiple regression methodology the purpose of this paper is to suggest that where the firms being considered are multiple product in nature and may pursue objectives in addition to maximizing the value of the firm such a methodology may be inappropriate the results presented in this paper suggest that the absence of a consistently strong positive and statistically significant relationship between market concentration and bank profitability may be traced in part to such an inappropriate methodology

a conditional extreme value volatility estimator based on high frequency returns abstract this paper introduces a conditional extreme value volatility estimator evt based on high frequency returns the relative performance of the evt is compared with the discrete time garch and implied volatility models for 1 day and 20 day ahead forecasts of realized volatility this is also a first attempt towards detecting any time series variation in extreme value distributions using high frequency intraday data the information content of evt is examined in the context of forecasting sp 2 vix generally yields a less accurate characterization of realized volatility than evt and garch models these results have implications for financial risk management and are thus relevant to both regulators and practitioners

an institutional approach to the rationality of expectations the issue of expectations is an important one to modern macroeconomic theory despite considerable efforts in recent times the process by which economic expectations are actually formed is still not well understood there are several possible explanations for this one of the more important is that an investigation of the forecasting industry which contributes in a major way to expectations formation has never been carried out as a result and because it is after all an industry like any other a study of the aggregate economic forecasting in canada was undertaken using the now familiar scp paradigm such a relatively careful institutional examination of the uses and production of one of the most important elements going to make up economic expectations gives strong evidence of rational economic processes at work economic theory is therefore correct to treat expectations as rational

time series analysis for financial market meltdowns abstract there appears to be a consensus that the recent instability in global financial markets may be attributable in part to the failure of financial modeling more specifically it is alleged that current risk models have failed to properly assess the risks associated with large adverse stock price behavior in this paper we first discuss the limitations of classical time series models for forecasting financial market meltdowns then we set forth a framework capable of forecasting both extreme events and highly volatile markets based on the empirical evidence presented in this paper our framework offers an improvement over prevailing models for evaluating stock market risk exposure during distressed market periods

in pursuit of monopoly power recent quantitative work in industrial economics this paper reviews empirical work in industrial organization devoted to the question of inferring the existence of monopoly power from data on observed market outcomes like profits and prices the discussion covers inter industry work long conventional in the area newer developments in intra industry analysis and case studies and concludes with some remarks on a small but growing body of work assessing market dynamics the wide range of studies reviewed all generally reveal that market power exists in many industries

confidence intervals for conditional tail risk measures in arma garch models abstractarma garch models are widely used to model the conditional mean and conditional variance dynamics of returns on risky assets empirical results suggest heavy tailed innovations with positive extreme value index for these models hence one may use extreme value theory to estimate extreme quantiles of residuals using weak convergence of the weighted sequential tail empirical process of the residuals we derive the limiting distribution of extreme conditional value at risk cvar and conditional expected shortfall ces estimates for a wide range of extreme value index estimators to construct confidence intervals we propose to use self normalization this leads to improved coverage vis a vis the normal approximation while delivering slightly wider confidence intervals a data driven choice of the number of upper order statistics in the estimation is suggested and shown to work well in simulations an application to stock index returns documents the improvements of cvar and ces forecasts

sics as delineators of economic markets the standard industrial classification sic is often used to divide firms into homogeneous markets firms classified into the same n 1 digit sic are thought to be more homogeneous than firms sharing only the same n digit sic this study measures how well the sic succeeds at combining firms into homogeneous economic markets assuming that firms in more similar economic markets should display more similar sales changes profit rates or stock price changes than firms in less similar economic markets the author finds that the sic is not successful at identifying firms with such similar characteristic variables copyright 1989 by the university of chicago

testable competing hypotheses from structure performance theory efficient structure versus market power this paper provides a structure performance theory that can accommodate leading firm efficiency as well as several competing market power hypotheses the author derive s testable implications distinguishing the simple collusion product differentiation and scale economy hypotheses from the innovative lea ding firm alternative it is shown that recent evidence of a positive market share price cost margin pcm relationship and a nonpositive concentration pcm relationship can reject the scale economy and simpl e collusion hypotheses in homogeneous product markets unfortunately this same evidence cannot reject the product differentiation hypothe sis in favor of leading firm efficiency copyright 1988 by blackwell publishing ltd

determinants of bank market structure efficiency and political economy variables abstract this paper analyzes the influence of bank efficiency and political economy variables on bank market structure market share and market concentration using a panel data of 2 592 banks from 69 countries over the 1996 2002 period results indicate that the validity of the efficiency structure hypothesis to explain bank market structure varies across countries depending on national political economy variables in particular higher entry requirements more generous deposit insurance and higher extent of government bank ownership reduce the positive influence of bank efficiency on market share and market concentration however tighter restrictions on bank activities better quality of the contracting environment more market monitoring and more market orientation and development of the financial system increase the positive influence of bank efficiency on market share and market concentration jel classification g18 g21 g28 keywords banking structure efficiency regulations supervision institutions

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

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

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

a generalized extreme value approach to financial risk measurement this paper develops an unconditional and conditional extreme value approach to calculating value at risk var and shows that the maximum likely loss of financial institutions can be more accurately estimated using the statistical theory of extremes the new approach is based on the distribution of extreme returns instead of the distribution of all returns and provides good predictions of catastrophic market risks both the in sample and out of sample performance results indicate that the box cox generalized extreme value distribution introduced in the paper performs surprisingly well in capturing both the rate of occurrence and the extent of extreme events in financial markets the new approach yields more precise var estimates than the normal and skewed t distributions

an extreme value approach to estimating volatility and value at risk this article determines the type of asymptotic distribution for the extreme changes in u s treasury yields the thin tailed gumbel and exponential distributions are strongly rejected against the fat tailed frechet and pareto distributions the empirical results indicate that the volatility of maximal and minimal changes in interest rates declines as time to maturity rises yielding a downward sloping volatility curve for the extremes the article proposes an extreme value approach to estimating value at risk and shows that the statistical theory of extremes provides a more accurate approach for risk management and value at risk var calculations than the standard models

market structure and worker quality it is frequently asserted although never directly tested that firms in more monopolistic industries hire better qualified workers this paper presents two new results first worker quality education in particular is a strong determinant of whether a worker is employed in a concentrated industry when using a traditional data source second upon expanding the data to include measures of research and development workers of better quality are actually no more likely to locate in concentrated industries these results fit with theories claiming that industries subject to technological opportunities may be more concentrated and that those opportunities demand higher quality workers i introduction at least a score of articles since the 1960s test the hypothesis that more concentrated industries pay workers higher wages other things equal this investigation has been part of a more general examination of whether or not concentrated structure generates inefficiencies beyond the deviation of price from cost unfortunately this large scale effort has not been rewarded with consistent results separate researchers both confirm and fail to confirm an independent role for industrial concentration in wage determination among those who fail to confirm the concentration earnings hypothesis one explanation is offered most often while concentrated industries pay higher wages they obtain better qualified workers the generally acknowledged simple correlation between wages and concentration becomes an insignificant partial correlation in the presence of a vector of controls while some of the typical controls could be considered measures of worker quality others clearly are not it may be one or more of these non quality controls which frequently include industry characteristics which eliminates the significance of concentration for example plant size and unionization known to be correlated with both wages and concentration are among the more likely non quality variables which could explain the lack of the authors thank william j adams william g shepherd gary solon and frank p stafford their suggestions improved early versions of this paper thanks is also expressed to almarin phillips who suggested the association with technological progress those confirming a positive statistical association between wages and industrial concentration include dalton and ford 119771 mellow 119831 kwoka 119831 long and link 119831 and heywood 119861 those failing to find such an association include weiss 119661 rapping 1967 pugel i9801 and freeman and medoff 119811

property rights regimes and natural resources a conceptual analysis the term common property resource is an example of a term repeatedly used to refer to property owned by a government or by no one it is also used for property owned by a community of resource users such usage leads to confusion in scientific study and policy analysis in this paper we develop a conceptual schema for arraying property rights regimes that distinguishes among diverse bundles of rights ranging from authorized user to claimant to proprietor and to owner we apply this conceptual schema to analyze findings from a variety of empirical settings including the maine lobster industry

corporate control and performance in the 1930s i introduction a fundamental assumption of mainstream microeconomics holds that firms strive to maximize economic profits beginning with the work of berle and means 1932 however researchers have seriously questioned if profit maximization is the sole objective for the large modern corporation given various circumstances in particular berle and means 1932 69 contend that as the ownership of corporate wealth has become more widely dispersed ownership of that wealth and control over it have come to lie less and less in the same hands they argue that the main beneficiaries of this transfer of control ultimately have been the managers because it has put them in the position to pursue their own interests at the expense of profits modern managerialist neoclassical theory suggests that corporate managers must be exempt from a number of behavioral constraints to successfully deviate from profit maximization and pursue the five p s of increased pay prerequisites power prestige and patronage first as berle and means note the executives must be free of a stockholder constraint some slack typically exists in this constraint when stock ownership is widely dispersed because an agency problem results from the asymmetry of information regarding true managerial behavior and performance simply put when an individual holds a relatively small percentage of the firm s outstanding stocks there exists little if any willingness in terms of a financial incentive to monitor true performance and ability with regards to corporate power to either actually or potentially discipline management thus the severity of the stockholder constraint generally depends on the percentage of the firm s outstanding stock held by the dominant stockholder second according to williamson 1963 the product market constraint cannot be fully binding since discretionary expenditures require excess profits in a competitive market managers are forced to minimize costs or the firm fails to survive in the marketplace as a result the firm must possess some degree of market power for managers to successfully pursue other goals besides profit maximization third some imperfections must exist in the capital markets otherwise any inefficient behavior on the part of management increases the likelihood of a corporate takeover in some cases as marris 1964 notes the mere threat of a takeover might sufficiently discipline management smiley 1976 points out however that the transaction costs of a takeover gives management some room to exercise discretionary behavior before the risk of a takeover becomes intolerably high fourth fama 1980 argues that imperfections must also exist in the external and internal labor markets otherwise job mobility within and among firms creates an incentive for managers to behave efficiently in addition better jobs and rewards in the future mean better job performance today finally jensen and meckling 1976 show that managers must be awarded an incomplete incentive contract if executive compensation completely depends on performance less inefficient behavior results despite the fact that managers must be at least partially free of all five constraints to successfully deviate from profit maximization a surprisingly large number of researchers including larner 1970 palmer 1973 mceachern 1975 and neun and santerre 1986 has found evidence linking unconstrained managers with lower levels of corporate performance in more modern times 1 these studies typically focus on the consequence of a loosening of the stockholder constraint on profitability researchers either explicitly or implicitly control for the severity of the product market constraint and some slack is assumed in the other three constraints on managerial behavior 2 with the exception of neun and santerre 1986 however these studies use a dichotomous measure of stockholder control which is based upon arbitrary and subjective criteria

on profitability and industrial concentration in pakistan abstract non inclusion of an important element of market structure in the profitability equation by earlier writers might have caused their estimates to suffer from specification error due to an omitted variable we have tried to formulate a more comprehensive model in which elasticity of demand advertising and concentration capture market structure while the supply side has been incorporated by including productivity other factors used to explain the degree of monopoly are capital intensity advertising and trade our results indicate that the main determinants of the profit margin are capital intensity rising productivity and industrial concentration we find that there was some dilution due to competition from foreign trade but its impact has been swayed by other factors

intangible resources tobin s q and sustainability of performance differences this paper tests empirically the hypothesis that the greater the intangibility of a firm s resources the greater the sustainability of its competitive advantage resource intangibility is measured by 1 tobin s q and 2 the predicted value from a hedonic regression of q on several accounting measures of intangibles sustainability is measured by the persistence of firm specific profits using a dynamic panel data regression model i find that intangibles play an effective role in sustaining a firm s competitive advantage as predicted by the resource based view of the firm however the results suggest that intangibles can also lock firms into persistent disadvantages

an empirical study of selected factors influencing the decision to list on foreign stock exchanges the growing internationalization of capital markets suggests that an increasing number of firms perceive the benefits of listing their stocks on foreign exchanges as outweighing the related costs many other firms however still limit listing their securities to their domestic exchanges this study investigates the motives for listing abroad the empirical analyses based on data on 481 multinationals indicate significant association between the likelihood of listing abroad and 1 the relative size of a firm in its domestic capital market 2 the ratio of foreign to total sales

a theory of price control price or rent control is but one of many forms of legislative action which interfere with private contracting in the market place to delimit the scope of my analysis i shall use the term price control to refer only to any set of regulations which satisfies the following three conditions first the control must fix the price or income terms of private contracts this categorically excludes any laws which regulate the distribution of income among the contracting parties on a share or percentage basis 2 second the control must involve no appropriation of proceeds to or from the government taxation and subsidization are thus excluded finally the fixing of price must not be associated with direct government sales purchases or manipulation of resources so as to maintain the regulated price 3 by this stipulation price support is also excluded even on such terms legal regulations to control price are still many and varied to evaluate our understanding of the class of phenomena which we seek to explain it is essential that we discover implications refutable by facts by this criterion the available body of economic theory pertaining to price control is deficient indeed the massive literature on the subject offers few such implications 4 an alternative approach to analyzing the observable effects of price control is presented here

pricing the european option to switch between two energy sources an application to crude oil and natural gas we consider a firm which can choose between crude oil and natural gas to run its business the firm selects the energy source which minimizes its energy or production costs at a given time horizon assuming the energy strategy to be established over a fixed time window the energy choice decision will be made at a given future date t in this light the firm s energy cost can be considered as a long position in a risk free bond by an amount of the terminal oil price and a short position in a european put option to switch from oil to gas by an amount of the terminal oil price too as a result the option to switch from crude oil to natural gas allows for establishing a hedging strategy with respect to energy costs modeling stochastically the underlying asset of the european put we propose a valuation formula of the option to switch and calibrate the pricing formula to empirical data on a daily basis hence our innovative framework handles widely the hedge against the price increase of any given energy source versus the price of another competing energy source i e minimizing energy costs moreover we provide a price for the cost reducing effect of the capability to switch from one energy source to another one i e hedging energy price risk

extreme value theory in finance a survey extreme value theory is concerned with the study of the asymptotic distribution of extreme events that is to say events which are rare in frequency and huge in magnitude with respect to the majority of observations statistical methods derived from it have been employed increasingly in finance especially for risk measurement this paper surveys some of those main applications namely for testing different distributional assumptions for the data for value at risk and expected shortfall calculations for asset allocation under safety first type constraints and for the study of contagion and dependence across markets under conditions of stress

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

how relevant is volatility forecasting for financial risk management it depends if volatility fluctuates in a forecastable way volatility forecasts are useful for risk management hence the interest in volatility forecastability in the risk management literature volatility forecastability however varies with horizon and different horizons are relevant in different applications moreover existing assessments of volatility forecastability are plagued by the fact that they are joint assessments of volatility forecastability and an assumed model and the results can vary not only with the horizon but also with the assumed model to address this problem we develop a model free procedure for assessing volatility forecastability across horizons perhaps surprisingly we find that volatility forecastability decays quickly with horizon volatility forecastability although clearly of relevance for risk management at the short horizons relevant for say trading desk management may be much less important at longer horizons

excess market value the multinational corporation and tobin s q ratio the results of this study show that there is a positive and significant relationship between excess market value of multinational corporations and the degree of international involvement as measured by foreign sales percentage however the excess market value is not determined by the number of foreign subsidiaries nor the interaction between foreign sales and the number of foreign subsidiaries the relationship between excess market value and the two frequently used measures of monopoly power concentration ratio and the lerner index was also examined this study found that the lerner index contributes significantly in explaining excess market value but concentration ratio does not furthermore the positive and significant coefficients of advertising and r d intensity serve as evidence that product market imperfections appear to play a bigger role in explaining the excess market value experienced by mncs during our sample period

market share and efficiency a reprise abstract a recent major study claims to have demonstrated the validity of the efficient market hypothesis this conclusion is unwarranted further empirical work suggests that market share is an element of industrial structure and may itself be a reflection of market power

advertising price and welfare evidence from the u s brewing industry the welfare effect of advertising has been a subject of controversy among economists for some time one obvious concern is simply the cost of advertising in 1990 for example americans spent 130 1 billion on advertising to put this figure into perspective this amounted to 523 per capita 2 35 percent of gross national product and roughly 80 percent of the national deficit 1 much of the early debate regarding the social desirability of advertising stems from different preconceptions regarding its purpose 13 14 8 49 for example according to the kaldor 29 hypothesis advertising is primarily persuasive or deceptive in nature it changes consumer preferences creates brand loyalty and persuades consumers to favor commodities that they did not previously desire an opinion survey by bauer and greyser 5 indicates that consumers believe that much of advertising is persuasive and greyser and reece 27 158 find that 85 percent of the over 2 700 harvard business review subscribers surveyed believe that advertising persuades people to buy things they do not need if advertising is purely deceptive then it can be classified as a bad and reduces welfare