the nature of costs and the number of firms at cournot equilibrium abstract the paper analyzes the perfect equilibria of a two stage entry production game in a simple model with constant marginal costs a fixed cost per firm and cournot behaviour at the production stage if fixed costs are not sunk the range of equilibrium values for n the number of firms can be quite large that range becomes smaller with the lower values of n being eliminated the more that fixed costs are sunk thus there is a sense in which sunk costs can rule out some less competitive equilibria to the benefit of consumers and potential entrants by enhancing the credibility of entry

the impact of the 2008 financial crisis on dynamic productivity growth of the spanish food manufacturing industry an impulse response analysis the emergence of a financial crisis is an event that can impact the fortunes of nearly all economic agents the focus here is on the 2008 financial crisis and how firms productivity growth was impacted by this crisis in the years that followed this article focuses on dynamic productivity growth and its components using a firm level data set of spanish meat processing dairy processing and oils and fats firms the impulse response analysis shows that the impact of the crisis on dynamic productivity growth is negative and persistent in the oils and fats industry initially positive but then negative in the meat processing industry and positive in the dairy processing industry the observed magnitudes of change in indicator are between 2 and 5 for oils and fats industries and of 1 in both dairy and meat industries our analysis further confirms that firms size is an important factor in explaining how crisis impacts dynamic productivity growth and its components while we find only slight evidence regarding the firms experience in the market

does product market competition increase strike activity evidence from the uk although many studies have examined the effect of labour market characteristics macroeconomic fluctuations and workplace level factors on strike activity much less is known about industry level determinants of industrial conflict and in particular the role of product market competition i examine the effect of competition on strike activity using evidence from a natural experiment of policy reform the introduction of cartel legislation in the uk in the late 1950s my econometric analysis which takes advantage of the fact that different industries were affected to varying degrees by cartel policy establishes that both the number of strikes and the number of working days lost as a result of strikes increased significantly when competition intensified after the abolition of cartels i propose an interpretation of these results with reference to theoretical models of bargaining with asymmetric information

flexibility and uncertainty the preserving of flexibility when faced with uncertainty is a neglected aspect of behaviour under risk yet it is an important factor in decisions to hold liquid assets or delay irreversible investment this paper formalizes the notion of flexibility in a sequential decision context and relates its value to the amount of information an agent expects to receive a rudimentary money demand model is developed embodying these ideas and the history of flexibility as an economic concept is traced choices are frequently made between alternatives that imply different degrees of future commitment between a short term investment that leaves future options open for example and a long term one that by its very nature forecloses those options the relative attractiveness of the two depends on their probability distributions of payoffs over time a basic consideration in this choice is the recognition that beliefs about the risks governing these payoffs may change current doubts may be partially resolved in the near future this prospect decreases the attractiveness of the longer term commitment in that one is able to respond less fully to new information and even if it does not directly affect the risks associated with shorter term choices enhances their appeal this paper formalizes the above remarks by establishing connections between the following two partial orderings the first is an ordering based on variability of beliefs one set of beliefs is more variable than another if more final risk is resolved at an intermediate stage the more one expects to learn by an intermediate period relative to what one knows today the more variation one is anticipating in beliefs about the final outcome the second is an ordering of current actions or positions based on flexibility one position is more flexible than another if it leaves available a larger set of future positions at any given level of cost these two orderings are incorporated in a simple sequential decision model to suggest the following behavioural principle the more variable are a decision maker s beliefs the more flexible is the position he will choose this principle potentially applies whenever i there will be opportunities to act after further information is received and ii current actions influence either the attractiveness or availability of different future actions

competition and corporate performance are people right to think that competition improves corporate performance my investigations indicate first that there are some theoretical reasons for believing this hypothesis to be correct but they are not overwhelming furthermore the existing empirical evidence on this question is weak however the results reported here based on an analysis of around 670 u k companies do provide some support for this view most important i present evidence that competition as measured by increased numbers of competitors or by lower levels of rents is associated with a significantly higher rate of total factor productivity growth

the effects of human resource management practices on productivity a study of steel finishing lines the authors investigate the productivity effects of innovative employment practices using data from a sample of thirty six homogeneous steel production lines owned by seventeen companies the productivity regressions demonstrate that lines using a set of innovative work practices which include incentive pay teams flexible job assignments employment security and training achieve substantially higher levels of productivity than do lines with the more traditional approach which includes narrow job definitions strict work rules and hourly pay with close supervision their results are consistent with recent theoretical models which stress the importance of complementarities among work practices

price competition and market structure the impact of cartel policy on concentration in the uk this paper examines the impact of firms conduct on market structure it studies the evolution of concentration in uk manufacturing following the abolition of cartels using a theoretical framework based on sutton s theory of market structure and a panel data set of four digit industries over 1958 1977 the econometric results suggest that the intensity of price competition has a positive impact on concentration in exogenous sunk cost industries as well as in advertising intensive and r d intensive industries the concentration market size relationship while negative in exogenous sunk cost industries breaks down in industries with high advertising or r d intensity

price setting supergames with capacity constraints this paper examines the role of industry capacity in enforcing collusion in the context of repeated games for a fixed capacity per firm it is shown that changes in the number of firms have a non monotone effect on the best enforceable cartel price this is due to the fact that while an additional firm lowers the share that each of the other firms enjoys at the collusive price it also increases the losses to each firm should the cartel fail

the irreversibility effect in environmental decisionmaking we provide a new more general definition for the irreversibility effect and demonstrate its relevance to problems involving environmental and other decisions under uncertainty we establish several analytical and numerical results that suggest both that the effect holds more widely than generally recognized and that an existing result epstein s theorem giving a sufficient condition for determining whether the effect holds can be applied more widely than previously indicated in particular to problems involving intertemporally nonseparable benefit functions we further show that a low elasticity of intertemporal substitution will however result in failure of the effect

competition risk and managerial incentives this paper examines how the degree of competition among firms in an industry affects the optimal incentives that firms provide to their managers a central assumption is that there is free entry and exit in the industry which implies that changes in the nature of competition lead to changes in the equilibrium market structure the main result is that as the intensity of product market competition increases as a result of greater product substitutability or greater market size principals unambiguously provide stronger incentives to their agents to reduce costs at the same time more intense competition also leads to more volatile firm level profits consequently managers incentives are positively correlated with firm level risk consistent with empirical evidence a decrease in the cost of entering the market has the opposite effect on incentives but still induces a positive correlation between risk and incentives

global warming irreversibility and learning a number of economists have argued that the literature on the irreversibility effect implies that current abatement of greenhouse gas emissions should be greater when there is the possibility of obtaining better information in the future about the potential damages from global warming than when there is no possibility of obtaining better information in this paper we show that even the simplest model of global warming does not satisfy either of epstein s 1980 sufficient conditions so it is not possible to use epstein s analysis to tell whether the irreversibility effect applies to models of global warming we derive an alternative sufficient condition for the irreversibility effect to hold

risk aversion intergenerational equity and climate change the paper investigates a climate economy model with an iso elastic welfare function in which one parameter measures relative risk aversion and a distinct parameter measures resistance to intertemporal substitution we show both theoretically and numerically that climate policy responds differently to variations in the two parameters in particular we show that higher but lower leads to increase emissions control we also argue that climate economy models based on intertemporal expected utility maximization i e models where may misinterpret the sensitivity of the climate policy to risk aversion

competition and the relative productivity of large and small firms using a comprehensive dataset on the incidence of price fixing across british manufacturing industries in the 1950s i compare collusive and competitive industries and find evidence of a negative relationship between collusion and the labour productivity of larger firms relative to smaller firms in particular collusion is associated with a reduction or even a reversal of the productivity gap between larger and smaller firms this result is robust to controlling for the potential endogeneity of collusion

residual based test for fractional cointegration by allowing deviations from equilibrium to follow a fractionally integrated process the notion of fractional cointegration analysis encompasses a wide range of mean reverting behaviors for fractional cointegrations asymptotic theories have been extensively studied and numerous empirical studies have been conducted in finance and economics but as far as testing for fractional cointegration is concerned most of the testing procedures have restrictions on the integration orders of observed time series or integrating error and some tests involve determination of bandwidth in this paper a general fractional cointegration model with the observed series and the cointegrating error being fractional processes is considered and a residual based testing procedure for fractional cointegration is proposed under some regularity conditions the test statistic has an asymptotic standard normal distribution under the null hypothesis of no fractional cointegration and diverges under the alternatives this test procedure is easy to implement and works well in finite samples as reported in a monte carlo experiment

fundamental irreversibilities in stock externalities abstract this paper concerns the irreversibility effect in stock externalities in an environment of uncertainty with learning taking place one may wish to under emit today to avoid potential environmental irreversibilities alternatively one may wish to under invest in pollution control capital avoiding investments in sunk capital that turn out to be wasted the paper develops theoretical results on the tension between these two effects and separates risk aversion from the irreversibility effect the paper also presents a simple example in climate change policy

alternative sources of the gains from international trade variety creative destruction and markups the modern theory of international trade identifies several additional sources of the gains from international trade beyond the gains from traditional comparative advantage these are the gains from importing new product varieties the gains from creative destruction as the relatively most productive firms expand their output by exporting while the less productive firms exit and the gains from competition between firms in different countries which can lead to reduced markups estimates of these various gains are provided for the united states and other countries

estimating mark ups from plant level data typical plant level data sets do not report quantities this paper shows that estimating mark ups price cost ratio in product differentiated industries using deflated sales to proxy quantity is not appropriate due to unobserved price heterogeneity this paper presents an econometric model for estimating mark ups that controls for unobserved prices the model shows that ignoring price heterogeneity results in mark up estimates that converge to one whatever the value of the true price cost ratio estimates obtained using real data are consistent with this result as they reveal that ignoring price heterogeneity leads to spurious evidence of firms with little or no market power

market power productivity and the eu single market program evidence from a panel of italian firms abstract this paper provides empirical evidence on the impact the eu single market program has exerted on market power and total factor productivity in a large sample of italian firms both market power and total factor productivity are estimated by applying several extensions of the methodology developed by hall main findings can be summarised as follows firstly for the sample of 1992 most sensitive firms market power decreases by 50 in the smp implementation period compared to previous years whereas no clear pattern emerges for the other sub samples of firms secondly and less conclusively only for the sub sample of 1992 most sensitive firms a positive transitory shock to productivity growth rates is observed immediately after the announcement of the reform project overall these results are consistent with the long standing view that economic integration reduces firms market power and increases productivity via the removal of non tariff barriers

firm turnover restructuring and labour productivity in transition the case of poland this article explores the impact of turnover and restructuring on labour productivity in the polish economy over the period 1988 to 1993 changes in aggregate productivity are decomposed into elements corresponding to productivity growth among survivors market share growth by survivors and the contributions of entering and exiting firms the traditional entry and exit effects begin to work as transition to a market economy progresses however initial productivity improvements are due to changes in market shares of the existing firms following the break up of large enterprises regression analysis shows that changes in the firm level productivity are affected by restructuring and a more competitive economic environment

incorporating resilience in the assessment of inclusive wealth an example from south east australia this paper explores the consequences of changes in a system s resilience on the sustainability of resource allocation decisions as measured by inclusive wealth iw arrow et al in environ resour econ 26 647 685 2003 we incorporate an estimate of resilience in iw by taking account of known or suspected thresholds that can lead to irreversible or practically irreversible changes in the productivity and value of assets and hence social welfare these thresholds allow us to identify policies or projects that may be leading to an increased risk of decline in capital stocks the wealth of the region such risks are not reflected through usual measures of current system performance e g agricultural production we use the goulburn broken catchment in south eastern australia as a case study to explore the significance and practicality of including resilience in inclusive wealth estimates

impact of plant size and focus on productivity an empirical study recent popular business literature has suggested that there is a significant trend in the united states for firms to decrease the size and increase the focus of manufacturing plants they operate and that this leads to higher productivity this paper tests empirically the validity of these claims we analyze data on virtually the entire population of manufacturing plants in the united states and find that contrary to the popular business literature the average size of plants increased during the period 1972 1984 however consistent with the popular notion the rate of growth in plant size slowed considerably and even turned negative for a category of large plants plant focus did increase during this period we then investigate the relationship between productivity and plant characteristics including plant size and plant focus overall our results do not support the popular argument that reduction in plant size results in productivity gains however we do find support for this argument in some two digit sic industries also scale economies in the entire population decreased over the period 1972 1982 we also find only limited support for the popular argument that plant focus increases productivity

international oligopoly and the taxation of commerce with revenue constrained governments we evaluate the incentives for strategic commodity tax setting under destination and origin regimes when competition is imperfect and commodity taxes must be used to finance the government budget different cases of international duopoly are compared where firms compete over quantities or prices and markets are segmented or integrated in each setting the international spillovers of tax policy are isolated and evaluated at the pareto efficient tax rate we find that origin based commodity taxation leads to a downward competition of tax rates in each of the models analysed whereas no similarly broad based incentives for beggar thy neighbour policies exist under the destination principle

strategic r d with spillovers collusion and welfare the author considers a two stage r d then output or price duopoly game in which r d spills over so reducing the marginal cost of both the investing firm and its rival the author compares the noncooperative regime to three collusive regimes joint venture collusion on r d price fixing collusion at the price or output stage and merger collusion at both stages and evaluates under what circumstances a collusive regime improves welfare if spillovers are sufficiently large all three regimes are beneficial although mergers are more likely and price fixing less likely to produce specific benefits than are joint ventures copyright 1994 by blackwell publishing ltd

market growth economies of scale and plant size in the chemical processing industries what factors determine the size of new industrial plants this study uses data on twenty tw o chemical products to test alternative models of capacity expansion including the manne model and a scale frontier model the empiri cal results strongly support the scale frontier model the size of n ew plants increased along a time trend that was unrelated to market c oncentration market growth or the magnitude of investment scale eco nomies entrants typically built smaller plants than incumbents but all firms built plants closer to the technological frontier when smal l plants carried a higher relative cost penalty copyright 1987 by blackwell publishing ltd

the rise and fall of unions in the united states abstract union membership in the united states displayed a shaped pattern over the 20th century while income inequality sketched a a model of unions is developed to analyze these facts there is a distribution of productivity across firms in the economy firms hire capital plus skilled and unskilled labor unionization is a costly process a union chooses how many firms to organize and the union wage simulation of the model establishes that skill biased technological change which affects the productivity of skilled labor relative to unskilled labor can potentially explain the observed paths for union membership and income inequality

economic and environmental implications of turkish accession to the european union a cge analysis abstract the purpose of this paper is to analyze the economic and environmental implications of turkey s possible accession to the european union eu the paper focuses on the impacts of three main components of turkey s possible eu membership i the free movement of labor between the eu and turkey ii the free movement of capital and iii the burden sharing of turkey in terms of the eu s environmental objectives in the horizon of 2020 that is the reduction of carbon emissions among these a particular focus is placed on the influence of the co 2 emission reduction targets in both regions and their consequences on the carbon price in 2020 we estimate the resource allocation effects of eu climate change policies on both regions by taking into account the likely labor movement from turkey to the eu and capital movement in the reverse direction the results show that different emission targets for the two regions bring about a change in comparative advantages and thus a change in interregional competitiveness

competitive conditions and sectors productive efficiency a conditional non parametric frontier analysis abstract the scope of this paper is to build an appropriate nonparametric frontier framework by using time dependent conditional efficiency estimators to investigate how competition and time affect the process of technological change and technological catch up our empirical analysis utilizes a sample of 462 u s 6 digit manufacturing sectors over the period 1958 2009 contrary to the existing studies we apply the probabilistic approach of efficiency measurement to evaluate the dynamic effects alongside with the effects of competition on the sectors technological change and technological catch up levels moreover we estimate the sectors idiosyncratic efficiencies which are an approximation of solow s residual representing the unexplained part of the time dependent conditional measures the empirical results shed new light on the topic and signify that the dynamic effect of competitive conditions has a nonlinear effect on the sectors estimated performance specifically we unveil a u shaped curve between market concentration and technological change implying that the sectors higher concentration levels enhance their technological change levels e g innovation capacity having however a downsize effect on their technological catch up ability moreover the relationship between the sectors market concentration and technological catch up although non linear exhibits an n shaped curve with two turning points lastly the above findings remain robust when we limit our analysis to the capital intensive sectors

productivity under the 1997 2010 labour government what was the productivity record under the labour government of 1997 2010 i show that productivity growth and economic performance in general was good when the uk is compared with its main international peers only the us had stronger productivity growth and the uk did better than the us in terms of the jobs market much of this improved performance was a continuation of the pattern since 1979 which broke a century of relative decline some part of the improvement is directly linked to policies especially over human capital innovation and competition we discuss the recent productivity puzzle the disappointing productivity figures since the onset of the great recession in 2008 and argue that our conclusions are unchanged as most other oecd countries have also experienced poor measured productivity

market structure and cyclical fluctuations in u s manufacturing the relevance of imperfect competition for models of economic fluctuations has received increased attention from researchers in both macroeconomics and industrial organization the authors outline a new methodology for estimating industry markups of price over marginal cost and the influence of market structure on cyclical movements in total factor productivity measures of industry concentration import competition and unionization are important for explaining markups in some industry groups much of the estimated markup of price over marginal cost is accounted for by noncapital fixed costs finally the authors show that their estimated margins fluctuate substantially over the cycle in particular markups are countercyclical especially in concentrated durable goods industries copyright 1988 by mit press

what determines cartel success following george stigler 1964 many economists assume that incentive problems undermine attempts by firms to collude to raise prices and restrict output but the potential profits from collusion can create a powerful incentive as well theory cannot tell us a priori which effect will dominate whether or when cartels succeed is thus an empirical question we examine a wide variety of empirical studies of cartels to answer the following questions 1 can cartels succeed 2 if so for how long 3 what impact do cartels have 4 what causes cartels to break up we conclude that many cartels do survive and that the distribution of duration is bimodal while the average duration of cartels across a range of studies is about five years many cartels break up very quickly i e in less than a year but there are many others that last between five and ten years and some that last decades limited evidence suggests that cartels are able to increase prices and profits to varying degrees cartels can also affect other non price variables including advertising innovation investment barriers to entry and concentration cartels break up occasionally because of cheating or lack of effective monitoring but the biggest challenges cartels face are entry and adjustment of the collusive agreement in response to changing economic conditions cartels that develop organizational structures that allow them the flexibility to respond to these changing conditions are more likely to survive price wars that erupt are often the result of bargaining issues that arise in such circumstances sophisticated cartel organizations are also able to develop multipronged strategies to monitor one another to deter cheating and a variety of interventions to increase barriers to entry

the role of the structural transformation in aggregate productivity we investigate the role of sectoral differences in labor productivity in explaining the process of structural transformation the secular reallocation of labor across sectors and the time path of aggregate productivity across countries using a simple model of the structural transformation that is calibrated to the growth experience of the united states we measure sectoral labor productivity differences across countries productivity differences between rich and poor countries are large in agriculture and services and smaller in manufacturing moreover over time productivity gaps have been substantially reduced in agriculture and industry but not nearly as much in services in the model these sectoral productivity patterns generate implications that are broadly consistent with the cross country evidence on the structural transformation aggregate productivity paths and relative prices we show that productivity catch up in industry explains about 50 percent of the gains in aggregate productivity across countries while low relative productivity in services and the lack of catch up explains all the experiences of slowdown stagnation and decline observed across countries

broader product line a necessity to achieve success strategic product line breadth decisions evoke differential responses from the manufacturing and the marketing areas manufacturing prefers keeping process disruptions to a minimum and as a result discourages product proliferation however marketing in its attempt to match products to heterogeneous consumer needs and gain market share emphasizes a broader product line we systematically investigate the market benefits and cost disadvantages of broader product lines on a large sample of over 1 400 business units our results indicate significant market share benefits and increases in firms profitability with broader product lines moreover widely held beliefs of increases in production costs are not empirically supported american manufacturing firms may indeed be flexible enough to accommodate product variety without significant detrimental effects on costs

financial development and corporate growth in the eu single market the establishment of the eu 15 single market in 1993 brought about a high degree of similarity in firms growth opportunities across countries while substantial diversity existed in the development of national financial markets we compare within industry growth rates of similar single market firms facing financial systems of different depth and institutional quality as of 1993 moving from the least to the most developed financial market within the eu 15 boosts firms annual value added growth by about three percentage points our results also suggest that the growth gap due to initially underdeveloped financial systems was closed by 2003

the effect of competition on wages and productivity evidence from the united kingdom abstract i examine the impact of competition on wages and productivity using a panel data set of u k manufacturing industries over 1954 1973 the introduction of cartel law in the united kingdom in the late 1950s caused an intensification of price competition in previously cartelized manufacturing industries but it did not affect those industries that were not cartelized the econometric results from a comparison of the two groups of industries before and after the introduction of cartel law provide strong evidence of a negative effect of collusion on labor productivity growth there is no evidence of any effect of collusion on wages these results are robust to controlling for the potential endogeneity of collusion and are further strengthened by a comparison with u s data

when are cartels stable contracts why do some industry cartels survive for decades while others are quickly undermined by price wars and entry variation in cartels longevity can be explained by differences in their costs of self enforcement and service value to members analyzing legal cartel contracts formed under the webb pomerene export trade act i find that longer lived cartels tended to export to small buyers to have wide industry coverage to operate in periods of stable prices and growing demand and to sell under side agreements with foreign competitors contracts in which the cartel centralized its control through a common sales agency tended to be more stable however cartels usually grew less stable with age and when there was a recent and long history of cartelization in the industry finally cartels whose primary rationale was to fix price tended to be particularly unstable because these contracts invited fringe competition and entry

are adjustment costs for labor asymmetric an econometric test on panel data for italy in this paper we analyze the structure of adjustment costs for labor in particular the question whether hiring and firing costs are asymmetric is addressed we maintain the standard assumption of quadratic adjustment costs but allow the multiplicative coefficient to differ for the firing and hiring regime the euler equations for this problem can be combined into a general model that nests the one with symmetric adjustment costs the model can be conveniently estimated and the parameter restrictions implied by symmetry easily tested we also extend the model to allow for variable adjustment coefficients in the empirical application we use a panel data collected by ceris on 52 large italian firms for the period 1958 1988 the general conclusion from the econometric testing is that the hypothesis of symmetric adjustment costs is rejected by the data copyright 1993 by mit press

a fractional cointegration analysis of purchasing power parity a generalized notion of cointegration called fractional cointegration is introduced to examine the long run purchasing power parity ppp hypothesis by allowing deviations from equilibrium to follow a fractionally integrated process the fractional cointegration analysis can capture a wider range of mean reversion behavior than standard cointegration analyses this gain is flexibility in modeling subtle mean reverting dynamics is found to be important for a proper evaluation of long run ppp empirical results based on historical data for the 1914 1989 period show that ppp reversion exists and can be characterized by a fractionally integrated process in three out of five countries studied the results support ppp as a long run phenomenon though significant short run deviations from ppp can exist

uncertainty learning and heterogeneity in international environmental agreements this paper concerns the formation of international environmental agreements under uncertainty about environmental damage with different models of learning complete learning partial learning or no learning the results of the existing literature are generally pessimistic the possibility of either complete or partial learning generally reduces the level of global welfare that can be achieved from forming an iea relative to no learning that literature regards uncertainty as a parameter common to all countries so that countries are identical ex ante as well as ex post in this paper we extend the literature to the case where there is no correlation between damage costs across countries each country is uncertain about a particular parameter in our case the benefit cost ratio drawn from a common distribution but ex post each country s realized parameter value is independently drawn consequently while countries remain identical ex ante they may be heterogeneous ex post we show that this change reinforces the negative conclusions about the effects of partial learning on international environmental agreements but under certain conditions moderates the negative conclusions about the effects of complete learning

information and the concept of option value this paper examines the arrow fisher henry concept of option value and analyzes its properties including its relationship to the value of information and the effects of increasing uncertainty about the future consequences of irreversible development it is shown that this option value is distinct from but bounded by the value of information in the overall decision problem also it is distinct from a concept of option value that appears in b s bernanke quart j econom 98 85 106 1983 however when there is a continuum of development levels rather than a binary choice between full development and no development some of these conclusions need to be modified

explaining cross country productivity differences in retail trade many macroeconomists argue that productivity is low in developing countries because of frictions that impede the adoption of modern technologies i argue that in the retail trade sector developing countries rationally choose technologies with low measured labor productivity my theory is that the adoption of modern retail technologies is optimal only when household ownership of complementary durable goods such as cars is widespread because income is low in the developing world households own few such durables the theory implies that policies that increase measured retail productivity do not necessarily increase welfare

the impact of competition on management quality evidence from public hospitals in this paper we examine the causal impact of competition on management quality we analyze the hospital sector where geographic proximity is a key determinant of competition and english public hospitals where political competition can be used to construct instrumental variables for market structure since almost all major english hospitals are government run closing hospitals in areas where the governing party has a small majority is rare due to fear of electoral punishment we find that management quality measured using a new survey tool is strongly correlated with financial and clinical outcomes such as survival rates from emergency heart attack admissions ami more importantly we find that higher competition as indicated by a greater number of neighboring hospitals is positively correlated with increased management quality and this relationship strengthens when we instrument the number of local hospitals with local political competition adding another rival hospital increases the index of management quality by one third of a standard deviation and leads to a 10 7 reduction in heart attack mortality rates

competition innovation and the use of innovations i examine the effect of competition on the production and use of innovations using evidence from a natural experiment of policy reform the introduction of cartel legislation in the uk in the late 1950s i compare manufacturing industries which had been collusive and were therefore affected by the policy with those that had been competitive and were not affected the intensification of competition following the abolition of cartels caused a short run decrease in innovations produced but had no significant effect in the long run in contrast innovations used increased both in the short run and in the long run

a dynamic analysis of the adoption of a new technology the case of optical scanners two p roportional hazard models are used to investigate the differingeffects of marke t structure variables on the conditional probabilityof a firm initially adoptin g the new technology of optical scanners as the innovation spreads through the f ood store industry during the early stage leading firms with large average sto re size which are not members of chains and which operate in less concentrated m arkets with higher incomes and wage rates tend to adopt scanners sooner later on differences in seller concentration market share and size become less impo rtant as other firms follow prior adoptions copyright 1987 by mit press

a model of collusion timing abstract i develop a dynamic model of collusion affording a substantial role to entry heterogeneous firms make collusion entry exit and investment decisions within an evolving environment the collusive agreement adopted is a rule of thumb motivated by the details of collusion in the lysine market it is found that an entrant will wait until it has a market share comparable to its competitors before agreeing to collude allowing for collusive possibilities tends to yield a less concentrated industry with reduced consumer welfare the model characterises events in the lysine market and could provide insights into markets with the potential for collusion and entry and uncertainty about the characteristics of potential entrants

collusion profitability and welfare theory and evidence abstract in a differentiated oligopoly model with free entry the static welfare loss from collusion is larger the lower the entry cost the larger the market size and the higher the degree of product differentiation the cartel overcharge is larger the lower the entry cost and the larger the market size and is independent of the degree of product differentiation these theoretical results are consistent with evidence from a natural experiment of policy reform the introduction of cartel law in the uk in the late 1950s price cost margins declined after the breakdown of cartels in low capital and larger sized industries relative to capital intensive and smaller sized ones there is weaker evidence of a fall in price cost margins in consumer good and advertising intensive relative to producer good and low advertising industries crucially these effects are not observed for industries that were not affected by the cartel law a comparison of these findings with evidence on the incidence of collusion suggests that the welfare loss from collusive pricing may often be smaller in industries where cartels tend to form than in those where collusion is more difficult to sustain

the evolution of manufacturing technology and its impact on industrial structure an international study this paper shows that plant and firm size in manufacturing and especially in engineering industry in several western industrial countries has declined since the early 1970s two hypotheses explaining the decline are advanced one is de glomeration or specialization the divestiture of non core businesses in order to free up scarce resources particularly management time to defend and nurture core business activities the second hypothesis is that the emergence of new computer based technology has improved the quality and productivity of small and medium scale production relative to standardized mass production techniques which dominated previously

when does competition foster commitment consider a firm that would like to commit to a focused business strategy because focus improves efficiency and thus increases profit we identify two general conditions under which tougher competition strengthens the firm s ability to commit to a focused strategy under these conditions competition fosters commitment for two reasons i competition reduces the value of the option to diversify the contestability effect and ii competition increases the importance of being efficient the efficiency effect we use a number of different models of imperfect competition to illustrate the applicability of our results our examples suggest that the contestability effect is very general in contrast the efficiency effect often requires further conditions which are specific to the nature of competition in each model in both cases our analysis helps us predict when these effects are more likely to be observed this paper was accepted by bruno cassiman business strategy

the relation between price and marginal cost in u s industry an examination of data on output and labor input reveals that some u s industries have marginal cost well below price the conclusion rests on the finding that cyclical variations in labor input are small compared with variations in output in booms firms produce substantially more output and sell it for a price that exceeds the costs of the added inputs the paper documents the disparity between price and marginal cost where marginal cost is estimated from annual variations in cost it considers a variety of explanations of the findings that are consistent with competition but none is found to be completely plausible

what determines productivity lessons from the dramatic recovery of the u s and canadian iron ore industries following their early 1980s crisis great lakes iron ore producers had faced no competition from foreign iron ore in the great lakes steel market for nearly a century as the 1970s closed in the early 1980s as a result of unprecedented developments in the world steel market brazilian producers were offering to deliver iron ore to chicago the heart of the great lakes market at prices substantially below prices of local iron ore the u s and canadian iron ore industries faced a major crisis that cast doubt on their future in response to the crisis these industries dramatically increased productivity labor productivity doubled in a few years whereas it had changed little in the preceding decade materials productivity increased by more than half capital productivity increased as well i show that most of the productivity gains were due to changes in work practices work practice changes reduced overstaffing and hence increased labor productivity by increasing the fraction of time equipment was in operating mode changes in work pra

competition and relational contracts in the rwanda coffee chain how does competition affect market outcomes when formal contracts are not enforceable and parties resort to relational contracts difficulties with measuring relational contracts and dealing with the endogeneity of competition have frustrated attempts to answer this question we make progress by studying relational contracts between upstream farmers and downstream mills in rwanda s coffee industry first we identify salient dimensions of their relational contracts and measure them through an original survey of mills and farmers second we take advantage of an engineering model for the optimal placement of mills to construct an instrument that isolates geographically determined variation in competition conditional on the suitability for mills placement within the catchment area we find that mills surrounded by more suitable areas i face more competition from other mills ii use fewer relational contracts with farmers and iii exhibit worse performance an additional competing mill also iv reduces the aggregate quantity of coffee supplied to mills by farmers and v makes farmers worse off competition hampers relational contracts directly by increasing farmers temptation to default on the relational contract and indirectly by reducing mill s profits

the efficiency of firms what difference does competition make in cournot oligopoly the efficiency of a firm relative to others determines its market share this relationship gives an incentive to improve efficiency the incentives are greater in markets where firm behaviour is more competitive components of firm efficiency are identified by frontier production function techniques in 19 uk manufacturing sectors technical change average efficiency of each firm relative to the frontier and the efficiency of each firm relative to its own best practice in each period short run declines in market shares and profits induce the firm to improve efficiency relative to its best practice long run differences in efficiency are correlated with differences in gross investment

barriers to entry and development we ask whether barriers to entry are a quantitatively important reason for the income gap between developing countries and the united states we develop a tractable general equilibrium model that captures the effects of barriers to entry and the other main distortions typically considered in the development literature we carry our model to the data and ask it to match the main development facts from the penn world table we find that this requires large barriers to entry in developing countries which account for about half of the income gap with the united states

optimal conservation extinction debt and the augmented quasi option value abstract optimal conversion defines rules that determine the rate at which land is irreversibly moved out of conservation into production what are the implications on these rules of allowing for a feedback between conversion decisions and the stochasticity of conservation benefits we address this question using the well known ecological mechanism of extinction debt as an illustration this yields a model with a controlled diffusion process at its core we solve this model using a real options approach which leads to the conventional conversion rule as a special case calibrating the model to a specific case costa rica we demonstrate the presence of an augmented quasi option value the size of this value depends on the strength of the feedback

the formation of the european common market and changes in market structure and performance abstract this paper examines the effects of the formation of the common market on changes in seller concentration and price cost margins in the member states using nace 3 digit industry data for west germany france italy belgium and the netherlands the paper first seeks to identify the effect of the removal of intra ec tariffs on changes in national concentration the paper than tests the hypothesis that concentration measured at the ec wide level is becoming a relevant structural variable which affects the national price cost margin

the drivers of income inequality in rich countries rising income inequality has recently come centre stage as a core societal concern for rich countries the diagnosis of the forces driving inequality upwards and their relative importance remains hotly contested notably with respect to the roles of globalization versus technology and of market forces versus institutions and policy choices this survey provides a critical review and synthesis of recent research the focus is on income inequality across the entire distribution rather than only on what has been happening at the very top we pay particular attention to including what has been learned from the analysis of micro data to ensuring that the coverage is not unduly us centric and to analyses of the interrelations between the different drivers of inequality the marked differences in inequality trends across countries and time periods reflect how global economic forces such as globalisation and technological change have interacted with differing national contexts and institutions major analytical challenges stand in the way of a consensus emerging on the relative importance of different drivers in how income inequality has evolved in recent decades

price cost margins and economic integration how important is the pro competitive effect in this paper we examine whether the conventional result of a greater degree of integration leading to lower price cost margins i e the pro competitive effect would hold when two countries integrate by forming a common market we propose a general framework of reference in order to assess the extent of the pro competitive effect when the role of other variables is allowed for both for a small and large common market by solving the model the price cost margin of domestic firms would depend on a set of variables in addition to trade costs with the partner country which might eventually offset the conventional result jel classification f15 f12

collusive pricing in markets for vertically differentiated products abstract this paper examines the relationship between product differentiation and the sustainability of collusive pricing in markets for vertically differentiated products the main finding is that collusion is more easily sustained the more similar the products are exactly the opposite result may be obtained in models of horizontal differentiation consequently when products are differentiated both horizontally and vertically theory provides no clearcut prediction

product differentiation and price collusion the paper analyzes the implications of price collusion with or without monetary transfers on the degree of horizontal product differentiation we find that the principle of minimum differentiation holds i e firms sell the same product when there is no possibility of monetary transfers on the contrary we find that the presence of monetary transfers may induce some product differentiation the reason is that when monetary transfers are possible it is not essential per se to be well located in terms of relative market shares the outcome is then shown to be driven by only two forces 1 choosing a product closer to the competitor s improves the bargaining power 2 choosing a product closer to the one maximizing the joint profit improves the global firm efficiency

scientific progress and irreversibility an economic interpretation of the precautionary principle abstract we consider the problem of the optimal use of a good whose consumption can produce damages in the future scientific progress is made over time that provides information on the distribution of the intensity of damages we show that this progress induces earlier prevention effort only if prudence is larger than twice absolute risk aversion this paper thus identifies the class of quite restrictive but plausible conditions such that scientific uncertainties justify an immediate reduction of the consumption of a potentially toxic substance

partial collusion fosters minimum product differentiation we investigate a spatial duopoly in which the firms simultaneously select locations at the beginning of time once chosen the locations are fixed forever but the firms will choose prices in each of a countably infinite succession of time periods we are interested in equilibrium behavior when the firms will collusively arrange a trigger strategy equilibrium in prices and will select their locations knowing that a particular such trigger strategy price equilibrium will ensue specifically we restrict our attention to prices that support an outcome on the profit possibility frontier at which the ratio of firm 1 s profits to those of firm 2 is positively related to the similar ratio of profits at the single shot noncooperative equilibrium for these profit sharing rules the resulting location equilibrium is unique and involves the pairing of firms at the market center

price competition non price competition and market structure theory and evidence from the uk this paper examines the impact of price competition on advertising r and d expenditure and market structure a general theoretical result is derived which restricts the space of possible outcomes regarding the behaviour of concentration and advertising r and d expenditure following an intensification of price competition the theory is tested using uk data on the evolution of competition concentration and advertising over 1954 77 the econometric results suggest that the introduction of restrictive practices legislation in the uk caused a rise in concentration in previously cartelized high advertising manufacturing industries and probably also a fall in advertising intensity

cointegration fractional cointegration and exchange rate dynamics multivariate tests due to johansen 1988 1991 as implemented by baillie and bollerslev 1989a and diebold gardeazabal and yilmaz 1994 reveal mixed evidence on whether a group of exchange rates are cointegrated further analysis of the deviations from the cointegrating relationship suggests that it possesses long memory and may possibly be well described as a fractionally integrated process hence the influence of shocks to the equilibrium exchange rates may only vanish at very long horizons in the article by baillie and bollerslev 1989a it is argued that seven different nominal spot and forward exchange rates all contain unit roots in their univariate time series representations at the same time however the spot exchange rates appear to be tied together in the long run through a cointegration type relationship the latter finding of baillie and bollerslev has attracted particular interest and several studies such as those by hakkio and rush 1991 and sephton and larsen 1991 have already addressed this issue using the same data as the baillie and bollerslev article sephton and larsen 1991 describe the evidence for the presence of cointegration as being fragile and note that mixed conclusions are reached by truncating the baillie and bollerslev sample at different points in time diebold gardeazabal and yilmaz 1994 henceforth diebold et al provide interesting evidence that application of the johansen 1988 1991 tests with and without an intercept will result in different inferences on the baillie and bollerslev data set furthermore diebold et al carry out an ex ante forecasting experiment and find that the addition of an error correction term to the martingale model as implied by the standard cointegration paradigm fails to reduce the prediction mean square error when compared to a simple martingale model this therefore leads diebold et al to conclude that there exists substantial uncertainty regarding the existence of cointegration relationships among nominal dollar exchange rates this article provides some additional evidence on the existence of such a long run relationship among the same seven nominal spot exchange rates after further analysis it appears that a form of cointegration does exist between the exchange rates so that they do not drift apart in the long run we argue that this form of cointegration is

credit market frictions and political failure we study how an excessively favorable regulatory environment for banks could arise even with a perfectly competitive credit market in a median voter world in our occupational choice model with heterogeneous wealth endowments market failure due to unobservability of entrepreneurial talent endogenously creates a misalignment between surplus maximizing reforms and reforms that are preferred by the median voter who is a worker this is in contrast to the world without market failure where the electorate unanimously vote in favor of surplus maximizing institutional reforms this paper illustrates how market failure could lead to political failure even in the benchmark political system that is free from capture by interest groups

competitive pressure and economic integration an illustration for spain 1983 1996 abstract this paper estimates sectoral mark ups in the spanish economy during the period 1983 1996 the data consists of a large firm level data set that encompasses all sectors of economic activity apart from financial institutions the time period considered is well suited to assess the pro competitive effect of economic integration as spain s economy became fully integrated in the eu which was itself embarking on a massive liberalisation exercise i find that sectors most exposed to international competition witnessed a significant drop in margins while those more sheltered from competitive pressures did not finally comparing estimated mark ups to accounting margins indicates that the latter are a reasonable proxy for margins obtained econometrically

in which industries is collusion more likely evidence from the uk i examine the factors facilitating or hindering collusion using a comprehensive data set on the incidence of price fixing across uk manufacturing industries in the 1950s the econometric results suggest that collusion is more likely the higher the degree of capital intensity and less likely in advertising intensive than in low advertising industries there is also some evidence of a non monotonic relationship between market growth and the likelihood of collusion there is no clear link between concentration and the incidence of collusion

uncertainty learning and international environmental agreements the role of risk aversion this paper analyses the formation of international environmental agreements ieas under uncertainty learning and risk aversion it bridges two strands of the iea literature i the role of learning when countries are risk neutral ii the role of risk aversion under no learning combining learning and risk aversion seems appropriate as the uncertainties surrounding many international environmental problems are large often highly correlated e g climate change but are gradually reduced over time through learning the paper analyses three scenarios of learning a key finding is that risk aversion can change the ranking of these three scenarios of learning in terms of welfare and membership in particular the negative conclusion about the role of learning in a strategic context under risk neutrality is qualified when countries are significantly risk averse then it pays them to wait until uncertainties have been largely resolved before joining an iea this may suggest why it has been so difficult to reach an effective climate change agreement

closing and cloning in open end mutual funds abstract using a unique dataset we document that only those closed funds for which no new fund is subsequently launched continuously deliver positive abnormal returns this suggests the existence of an optimal fund scale in spite of the potential diseconomies of scale a non trivial proportion of closed funds have new funds cloned the scale motive would not be a complete explanation for the closure when managers of closed funds clone new funds they receive greater public attention and thus can attract more fund flows and charge higher fees furthermore better performing closed fund managers attract more fund flows to their new siblings making the closure an effective mechanism to extract economic rents overall we find that closing and cloning is an attractive strategy for funds seeking to increase their management fees and funds with more managers in place aspects of the closed fund family also affect the launch decision of new siblings

welfare losses in oligopoly and monopolistic competition estimates of the magnitudes of monopoly welfare losses mwl appearing in the economics literature have tended to differ quite widely at one end of the spectrum we find figures of the order of o i of gnp quoted by harberger i 954 in his pioneering study while at the other extreme cowling and mueller i 978 have derived estimates of around i o of gross corporate product from some of their measures two of the major sources of such differences lie in the treatment of a the general equilibrium aspects of deviations between prices and marginal costs and b the impact of market power on the cost levels of firms but unfortunately the tendency of writers to adopt rather different analytical frameworks often makes it difficult to accurately assign the variations in the estimates to specific factors in the present paper the issue of monopoly welfare loss is considered in the context of a differentiated goods model based upon work on monopolistic competition by spence i976 and by dixit and stiglitz i977 within a set of common assumptions about demand the effects of varying cost conditions and differing equilibria on the level of mwl are examined on this basis four major factors connected with suboptimal resource allocation can be identified a supernormal profits b product differentiation c suboptimal scale and d factor bias the first of these needs little explanation its association with welfare loss has been well explored in structure conduct performance theory and is used extensively in applied anti trust economics attention will therefore be focused upon the remaining three all of which can produce mwl in zeroprofit equilibria the paper is organised as follows section ii sets out and discusses the differentiated goods framework which will be used throughout the rest of the analysis it is also shown how a simple transformation of variables reduces the model to the homogeneous goods case and thereby makes immediately available a number of familiar results from the structure conduct performance literature in section iii the focus is on welfare analysis of monopolistic competition the results here are essentially restatements of earlier work although the transformation of variables helps to clarify their foundations section iv extends the analysis to incorporate additional decision variables such as advertising research and development etc while section v considers the case where market conditions will not sustain a large number of firms in equilibrium and suboptimal scale effects become important factor bias is analysed in

does an endogenous relationship exist between environmental and economic performance a resource based view on the horticultural sector the aim of this paper is to analyse the relationship between environmental and economic performance from the resource based theory within firms of the fresh fruit and vegetables sector this study considers that the adoption of environment friendly practices has a greater influence on firms opportunities and abilities in the agricultural sector than in manufacturing sectors and leads to closer links between performance variables the reference for this empirical analysis is a panel data of horticultural farming marketing firms in spain the voluntary environmental programmes and the heterogeneity of their application lead us to regard acquiring a competitive advantage as a relevant driver to improve environmental performance in this sector a simultaneous equations model is suggested reflecting the differential environmental effect and the assumption of endogeneity among variables the results show a positive impact of environmental differentiation on profitability and market share also suggesting that the perception of this positive experience implies greater environmental performance

effects of the customs union with the european union on the market structure and pricing behaviour of the turkish manufacturing industry turkey established a customs union with the european union in 1996 this study aims to analyse the effect of that customs union on the market structure and the pricing behaviour of the turkish manufacturing industry for the period 1994 to 2000 to that end the price cost mark up equation of 12 manufacturing industry sectors is estimated using the import and export ratios with european union countries together with control variables a second equation is also estimated for the concentration ratio index taking the trade ratios with european union countries as explanatory variables the estimation method is panel data covering eight years and 12 cross section units estimation outcomes indicate that the export and import ratios of trade with european union countries have a negative relation with the price cost mark up in the manufacturing sector it is concluded that increased imports with union countries have created a positive wealth and efficiency effect upon the turkish manufacturing industry due to f

cartel overcharges survey and meta analysis abstract the article presents a novel meta regression analysis of the size of cartel overcharges from a sample of more than 800 observations collected from a wide variety of published sources the analysis of a subsample of 395 cartel episodes finds that duration legal environment and organizational characteristics of cartels explain variation in overcharge rates to a greater extent than the type of publication or the method of calculation overcharges tend to be significantly higher for durable international cartels secular decline is observed as antitrust enforcement regimes have stiffened