the speed of the invisible hand abstract very little attention has been devoted to incorporating dynamic elements into empirical models of market structure and performance consequently there has been little progress in settling the issue of whether the market structure profits relationship is more than just a temporary phenomenon in this study an estimation equation is developed which allows for incomplete adjustment of past profits from expected future profits where expected profits depends on present and expected future changes in market structure the model is estimated pooling panel data across industries the findings indicate that adjustment to abnormal profits is relatively quick market share adjustments are non instantaneous and that inclusion of industry specific effects is important the results suggest that previous studies are susceptible to specification bias from omitted variables

dynamic market models in industrial organization abstract this paper surveys empirical work done on dynamic models of market performance these fall into one of two categories structural models which model how market structure and performance change in response to entry and reduced form models which describe change regardless of how it is brought about a typical example of each type of model is chosen from the literature and simulations are used to draw out the implications of the estimated coefficients both models depict the competitive process in the us economy as being extremely slow

trades unions market concentration and income distribution in united states manufacturing industry this paper uses three and four digit cross sections of united states manufacturing industries in 1972 in order to test a kaleckian degree of monopoly theory of income distribution various measures of labour share are regressed on the four firm concentration ratio the advertising sales ratio a measure of capital intensity and a unionisation variable in contrast to earlier studies for the u s strong evidence is found of a negative relationship between in particular production worker wage share and concentration and advertising intensity and evidence of a positive relationship between wage share and the level of unionisation

market structure and the empirical specification of profit margins we present evidence from a panel of u k manufacturing industries to test the sensitivity of the margins concentration relationship to specification changes in the dependent variable instrumental variable estimates demonstrate that a positive association between profit margins and concentration is contingent on how the margin is formulated

unions and monopoly profits using cross sectional data for u s manufacturing the author identifies a negative effect of unions on the profits of highly concentrated industries and virtually no effect on the profits of unconcentrated industries the results for concentrated industries are explained in terms of the monopoly model which predicts a negative effect of unions on profits equivalent to the change in employer s surplus the monopoly model also suggests that previous profit studies which omitted the union variable were likely to significantly underestimate the relationship between concentration and profits this prediction is also supported by empirical evidence m sany studies have demonstrated the ability of unions to raise wages above the level of nonunion workers higher union wages in turn may affect the level of prices employment capital intensity productivity and profits recent studies by clark 1982 and freeman 1983 have found significant negative effects of unions on profit rates in the united states using line of business data from 1970 to 1980 for 900 firms clark found a negative effect of unions on the rate of return to capital more specifically the union effects were found to be significantly negative when market shares were low and insignificant when market shares were high according to clark the absence of a union effect in the latter case can be explained by the ability of firms with market power to pass on higher union wages into higher prices 1982 p 47 on the other hand freeman 1983 using data from the survey of manufactures from 1958 to 1976 and the internal revenue service from 1965 to 1976 also found a negative effect of unions on profits contrary to clark s results however the union profit effect was negative only in concentrated industries the point of contention appears to be the role of concentration in determining the union profit effect rather than the overall negative impact of unions the results of clark and freeman are important because previous industrial organization research on profit rates generally ignored unions for instance of the forty six profit studies surveyed by weiss 1974 none included a union variable more recently a profit study in this review by ravenscraft 1983 using high quality line of business data from the federal trade commission also ignored unionization as will be demonstrated the omission of the union variable leads to an understatement of the effect of industrial concentration on profits this means that concentrated industries generate much greater profits than indicated by previous research in order to measure the size of the understatement a new concept employer s surplus is developed which illustrates the theoretical impact of a union wage increase on monopoly profits the empirical estimates of employer s surplus in this paper indicate how monopoly profits are divided between firms and unions most of the data used in this study were obtained from james medoff and charles brown 2 unlike the previous two studies each observation corresponds to a state by two digit sic industry for manufacturing in 1972 because of the large variations in unionization across states this data set offers a useful test of the union profit effect i employer s surplus according to accepted theory the profit maximizing monopolist will employ labor up to the point where the market wage equals the marginal revenue product mrp 3 if for simplicity we assume that all other factors are variable then the mrp curve represents the monopolist s long run demand for labor in the absence of unions employment is determined by the intersection of the mrp curve and nonunion wage wn as pictured in figure 1 if unions raise wages to wa employment will decrease from ln to l with the reducreceived for publication november 28 1983 revision accepted for publication july 6 1984 eastern washington university i am very grateful to dave bunting lisa brown bill dickens claire brown and george strauss for their valuable suggestions on this research this paper is a revised version of chapter 3 from the author s ph d thesis the union impact on profits productivity and prices university of california berkeley 1 see parseley 1980 for a recent review of this literature 2 i would like to thank brown and medoff for making these data available to me 3 marginal revenue product is equal to marginal revenue multiplied by marginal physical product see rees 1979

entry deterrence under trade unions this paper argues for the integration of labor unions in the analysis of industrial organization such a linkage is important for at least two reasons first unions are often concentrated in big firms which tend in general to face an imperfectly competitive environment in their product markets second unions are usually able to extract in the form of higher wages some rents which result from the market power of firms see for example freeman and medoff 1984 on the impact of unions on firm profitability in the u s a firms should thus take union behavior into account and in particular realize that strategies toward rival firms will tend to affect unions ability to extract rents we illustrate here the impact of unions in industrial organization by focusing on the topic of entry deterrence ed in section 2 we first argue that unions tend to lower the profitability of two standard widely studied ed strategies limit pricing under incomplete information and the use of sunk costs section 3 then turns to union contracts as a possible alternative ed strategy available to incumbent tirms finally section 4 assesses the welfare impact of unions in these settings while section 5 suggests directions for research

wage pressure bargaining and price cost margins in uk manufacturing to the extent that union employer bargaining is efficient price cost margins in oligopolistic industries are predicted to depend on wage rents and on the elasticity of substitution between wages and employment in union preferences unanticipated wage inflation will also affect margins cross section and time series analysis of price cost margins in u k manufacturing industries finds that margins tend to be eroded by the level of wage rents and are invariant to the rate of wage inflation copyright 1990 by blackwell publishing ltd

the union impact on profits evidence from industry price cost margin data this paper uses industry price cost margin data to estimate the extent to which unions reduce profits estimates allowing for the endogeneity of union status are contrasted with estimates that assume union status is exogenous and not determined in part by either profitability or industry structure endogeneity is found to be an important consideration in estimating the union impact on profits two stage estimates are considerably larger than ols estimates the final section explores the total estimated redistribution from capital to labor in the manufacturing sector an important conclusion is that unions raise prices less than was previously believed

to be unionized or not to be a case for cost raising strategies under cournot oligopoly abstract this paper analyses the decision by firms under cournot oligopoly as to recognize unions in order to gain market power despite higher costs considering classical models of union firm bargaining namely right to manage rtm and efficient bargaining eb we show that for a sufficiently low level of union power eb firms might adopt cost raising strategies this theoretical prediction is compatible with some empirical evidence in favour of eb and adds to the theoretical finding that eb might dominate rtm under unionized cournot nash oligopoly it also suggests closer antitrust scrutiny as whether unions can provide cartel like services to oligopoly firms allowing them to distort product market competition at the expense of consumers

panel data estimates of the production function and product and labor market imperfections summary consistent with two models of imperfect competition in the labor market the efficient bargaining model and the monopsony model we provide two extensions of a microeconomic version of hall s framework for estimating price cost margins we show that both product and labor market imperfections generate a wedge between factor elasticities in the production function and their corresponding shares in revenue which can be characterized by a joint market imperfections parameter using an unbalanced panel of 10 646 french firms in 38 manufacturing industries over the period 1978 2001 we can classify these industries into six different regimes depending on the type of competition in the product and the labor market by far the most predominant regime is one of imperfect competition in the product market and efficient bargaining in the labor market ic eb followed by a regime of imperfect competition in the product market and perfect competition or right to manage bargaining in the labor market ic pr and by a regime of perfect competition in the product market and monopsony in the labor market pc mo for each of these three predominant regimes we assess within regime firm differences in the estimated average price cost mark up and rent sharing or labor supply elasticity parameters following the swamy methodology to determine the degree of true firm dispersion to assess the plausibility of our findings in the case of the dominant regime ic eb we also relate our industry and firm level estimates of price cost mark up and extent of rent sharing to industry characteristics and firm specific variables respectively copyright 2011 john wiley sons ltd

business cycles and the relationship between concentration and price cost margins using a newly constructed panel data base we examine changes in price cost margins in 284 manufacturing industries between 1958 and 1981 a key finding is a dramatic narrowing of the spread between the margins of concentrated and unconcentrated industries over this period we provide evidence that this narrowing is a result of the greater sensitivity of price cost margins in more concentrated industries to demand fluctuations this finding is robust to the inclusion of other industry variables and to measures of import competition the results indicate that cross sectional estimates of the concentration margins relationship are likely to be both biased and misleading

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

the determination of profit margins in uk manufacturing this paper examines the determinants of profit margins in 91 u k manufacturing industries over the period 1983 86 it considers how the inclusion of labor market characteristics in empirical industrial organization specifications affects the estimated concentration margins relationship the empirical work pays detailed attention to the endogenous nature of variables derived from structural industrial organization models the authors report instrumental variables estimates of margins equations in which there emerges a significant role for labor market characteristics indeed both unionization and industrywide unemployment are found to depress profit margins the impact of concentration is seen to be biased downward when these variables are omitted

profit related pay prose discovered this paper estimates that in 1984 43 percent of british private sector establishments had some form of profit related pay regression results do not show that these establishments had statistically significant better financial performance cross ta bulations do not suggest that the establishments with income sharing schemes had noticeably greater employment growth or better industrial relations copyright 1988 by royal economic society

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

market structure and price cost margins in a paper that has become a standard reference in the structure conductperformance approach to industrial economics cowling and waterson 1976 developed a theoretical rationale for expecting industry profitability to be positively correlated with the level of concentration their model based on a simple algebraic description of oligopoly behaviour has been interpreted as providing a justification for the common empirical practice of cross industry regression analysis of price cost margins in terms of concentration levels in the present paper we show that on further examination this model implies a joint determination of margins and concentration this provides some interesting comparative static results of relevance to inter industry differences in concentration levels equally however it leads to various cautionary insights concerning the meaning of price cost margin versus concentration regressions

multiple input multiple output production choices and technology in the u s wheat region duality theory motivates a translog expected profit function consistent with multiple products price uncertainty preseason climate constraints acreage control policies and possibly nonhomothetic technology although multiple outputs are allowed enterprise specific data is not necessary instead time series measures of output revenues and expected prices input expenses and prices and fixed input flows are employed appropriate measures of elasticities of choice returns to size and biases in technological change are derived results indicated decreasing returns to size rather limited though complementary responsiveness of choices to price changes and the nature of biases in technological changes

the cyclical behavior of marginal cost and price the author examines the cyclical behavior of price marginal cost margins for u s manufac turing after 1956 short run marginal cost is markedly procyclical this is primarily due to procyclical overtime payments incurred beca use employment is not perfectly flexible in most industries output price fails to respond to the cyclical movement in marginal cost so price marginal cost margins are markedly countercyclical the res ults contradict business cycle theories that explain low production i n a recession by a high real cost of producing they support theories that explain low production in a recession by the inability of firms to sell their output copyright 1987 by american economic association

unions and the capture of economic rents an investigation using british firm level data this paper considers the relationship between unions and profitability in a sample of large british firms in 1984 and 1985 the initial finding is that unionised firms have significantly lower profit margins than otherwise comparable non union firms tests of whether the ability of unions to influence profit margins varies with the product and labour market characteristics of the firms in which they are located are then conducted the ability of unions to capture economic rents is seen to be significantly greater in firms which have a high market share and or operate in highly unionised industries

monetary targets real exchange rates and macroeconomic stability abstract in this paper i develop a model to determine the optimal degree of flexibility in attaining monetary targets in an economy that is affected by shocks in the labor and financial markets i then simulate the model to assess the optimal degree of monetary policy flexibility in spain a country that has adopted monetary targets rigidly since 1978 i show that the model supports the policy choice of that country i also show that the monetary authorities should attribute more importance to real exchange rate movements in choosing their policies if the spanish economy becomes more open to international trade or if the labor market becomes more flexible

the strategic choice of union oligopoly bargaining agenda abstract this article analyzes the optimal choice of union oligopoly bargaining agenda i e right to manage versus efficient bargaining under possible market entry it is shown that agreement by both the union and the incumbent firm about efficient bargaining emerges as equilibrium in nash strategies even more so under non blockaded entry for deterrence motives this is consistent with the common empirical findings that unionized firms do not behave according to the prediction of the right to manage model that employment will be on the labor demand curve the entry deterrence effect highlighted in this paper also suggests that labor market organization should not be overlooked as a component of the welfare analysis of product market competition

margins concentration unions and the business cycle theory and evidence for britain abstract a number of recent studies have examined the cyclical relationship between price cost margins concentration and unions u s data has concluded that unions reduce margins margins vary over the cycle and concentration unionisation and the cycle interact in their effect on margins however there is almost no theory to account for these results we propose a simple theory that assumes only that there is overhead labour present at the firm this produces theoretical predictions that can explain these results and discriminate between existing theories we present results of our own using u k panel data and show similar findings to the u s

unions and the financial performance of british private sector establishments summary this paper considers the relationship between unions and financial performance using data from the 1980 and 1984 workplace industrial relations surveys a qualitative indicator of financial performance is utilized and ordered probit estimates presented these indicate that unionized establishments are characterized by lower performance levels than are non union concerns the interface between union effects and relative market power is also explored and the ability of unions to extract a share of the available rents is found to be greater if the plants in which they are located possess a higher market share

modelling small business growth and profitability this paper develops a simple structural model relating small business performance to firms market position and the characteristics of their owner managers attention focuses on two questions what determines firms choice of business strategy and how does strategy choice change subsequent business performance taking into account both relationships the paper examines the links between the performance of a large group of irish small businesses over the 1993 94 period and their market and owner managers characteristics in 1991 the analysis suggests three main empirical results first firms turnover growth and return on assets are only weakly related in the short term above average growth rates are therefore no guarantor of high profitability moreover a number of characteristics of firms market position and their owner managers are found to have the opposite effects on profitability and growth rates secondly our data provides no evidence of the persistence of turnover growth rates above or below the average above average profit rates were also found to persist only in the very short term thirdly small firm performance is shown to depend strongly on strategy choice with turnover growth being particularly strategy dependent this highlights the importance for small firms of making the correct strategy choices a point emphasised by the negative profitability and growth effects of some strategy choices one strategy choice that had positive effects on both profitability and growth was the development of new export markets

simultaneous equations models of the structure performance paradigm abstract this paper is concerned with determining the dimension of the simultaneous equations model surrounding the basic profits concentration relationship a very general model is considered and then simplified using a simple test for exogeneity and it is concluded that the model is nonlinear in concentration and that simultaneous interaction occurs between profits and foreign competition variables

on the specification of structure performance relationships this paper argues that most estimated structure profitability equations in industrial economics have not been derived from a single coherent view of the behaviour of firms the independent variables in such equations have often been derived on the basis of a literature search and by appeal to conflicting approaches e g constrained and unconstrained profit maximisation the use of a coherent approach indicates that structure performance equations are likely to be highly non linear and that simultaneous equation estimation is neither required nor appropriate in some cases single equation estimation is adequate and in other cases reduced form equations are needed

margin rate and the cycle the role of trade openness abstractusing three datasets of french manufacturing firms this article studies the role of trade openness in relation with the cycle as a determinant of company margin rate margin rates increase as capacity utilization tightens and vice versa reflecting the procyclicality of margin rates however high import rates are limiting this procyclicality when capacities are tight domestic producers may not be able to serve demand but foreign producers may substitute for them if they are already present on the market as reflected by the level of import rates