the impact of mandatory disclosure laws on product choices an analysis of the salad dressing market abstract the nutrition labeling and education act nlea requires most food products to include a nutrition label prior to the nlea labeling was voluntary this study uses nutrition label information and supermarket scanner data pre and post nlea to examine the impact of moving from a voluntary to a mandatory labeling regime on consumer product choice the voluntary unraveling of information is shown to be an important market mechanism prior to the nlea all low fat salad dressings had a nutrition label while the majority of the higher fat dressings did not however there remained large variation in fat content among dressings that did not voluntarily label those with the highest fat levels experienced a significant decline in sales after they were required to disclose the results indicate that even in markets with credible low cost mechanisms to disclose mandatory labeling can have an impact on consumer behavior and health

defensive strategies in the quality ladders abstract this paper analyses the potentially defensive behaviour of patent race winners and the ensuing effect on aggregate r d effort we propose a quality ladder model where leaders strategically acquire a technology advantage and are able to innovate in this context product market regulation by affecting this strategic behaviour may have either a positive or negative effect on aggregate r d intensity the negative effect is likely to pertain in liberal markets whereas the positive influence arises in more regulated environments and can be stronger for larger jumps in innovation these steady state equilibrium outcomes are consistent with the puzzling patterns in data from manufacturing industries in 14 oecd countries over the 1987 2003 period

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

technical change and total factor productivity growth for swedish manufacturing and service industries this paper presents alternative specifications of the production functions of a large panel of swedish firms for the period 1992 2000 the period can be characterized as a transition when long run productivity growth in the swedish economy improved from being among the weakest to one of the strongest within the oecd in order to present a detailed exploration of this dramatic change the time trend and general index models are applied to estimate total factor productivity tfp growth rate of technical change and returns to scale the models are extended to allow for firm specific as well as time varying technical change the parametric tfp measures are also compared with the non parametric solow residual and several hypotheses are tested to explain the growth patterns in the swedish economy it is found that the improved growth rate initially starting in large exporting manufacturing firms after a deep economic crisis at the beginning of the 1990s spilled over to the rest of the economy both manufacturing and services

the finance growth nexus evidence from bank branch deregulation this paper provides evidence that financial markets can directly affect economic growth by studying the relaxation of bank branch restrictions in the united states we find that the rates of real per capita growth in income and output increase significantly following intrastate branch reform we also argue that the observed changes in growth are the result of changes in the banking system improvements in the quality of bank lending not increased volume of bank lending appear to be responsible for faster growth

quantitative effects of the shale oil revolution abstract the aim of this paper is to analyze the impact of the so called shale oil revolution on oil prices and economic growth we employ a general equilibrium model of the world oil market in which saudi arabia is the dominant firm with the rest of the producers as a competitive fringe our results suggest that most of the expected increase in us oil supply due to the shale oil revolution has already been incorporated into prices and that it will produce an additional increase of 0 2 in the gdp of oil importers in the period 2010 2018 we also employ the model to analyze the collapse in oil prices in the second half of 2014 and conclude that it was mainly due to positive unanticipated supply shocks

industry and firm specific factors of innovation novelty this article investigates the underlying factors that might shape the firm s choices with respect to degrees of innovation novelty using a sample of 2983 firms observed under the portuguese community innovation survey we assess the relative relevance of a set of firm and industry specific factors in explaining firms choices about incremental or radical innovation the results indicate that both the firm s idiosyncratic historical factors giving rise to heterogeneous r d capabilities and the industry context have power to shape the firm s innovation choices even though firm specific factors appear to be more powerful the estimated impacts on firm s innovation novelty are nonetheless significantly moderated by the type of firm and industry

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

the rosse panzar statistic and the lerner index in the short run abstract the lerner index or price cost margin is derived in terms of the rosse panzar statistic thereby broadening our understanding of the latter and affording a way of empirically estimating the former

nonparametric tests of market structure an application to the cigarette industry the revealed preference approach is used to construct a nonparametric test of the monopoly model and some simple generalizations of it and the test is applied to data for the cigarette industry it exploits the maintained hypothesis that variations in the excise tax charged on a package of cigarettes allow us to assess seller reactions to common exogenous variations in marginal cost results indicate that the monopoly hypothesis and other simple models that do not embody at least a moderate amount of competition serve as poor predictors of the effects of excise tax changes on cigarette prices sales and revenues copyright 1987 by blackwell publishing ltd

racing with uncertainty and strategic interaction between competitors as the race unfolds most of the existing literature examines one or other of these features but not the two combined our aim is to see how the efforts of competitors in a race vary with the intensity of rivalry between them in our principal model whch is of a one dimensional race it is shown that the leader in the race makes greater efforts than the follower and efforts increase as the gap between competitors decreases under certain conditions the same results hold in our second related model which is of a two dimensional race

testing hypotheses about firm behavior in the cigarette industry data on the effects of excise taxes are used to investigate the level of competition in the cigarette industry a lower bound on the numbers equivalent of firms in the context of the conjectural variations model is derived and estimated results point to at least a moderately high level of competition and in particular allow for the rejection of the perfect cartel model this paper relies on comparative statics results and hence circumvents recent criticisms of a study of monopoly behavior in the cigarette industry

how risky should an r d program be abstract this paper presents a two stage model describing the optimal choice of r d risk among r d programs with the same expected outcome it demonstrates that the choice of the highest risk r d program is a dominant strategy under bertrand or cournot competition

a model of the evolution of duopoly does the asymmetry between firms tend to increase or decrease this paper is an attempt to identify some of the factors that affect the evolution of market structure in a model of dynamic competition between two firms the stochastic evolution of the state of competition depends on the respective effort rates of the firms the question is whether the current leader works harder than the laggard does the gap between firms tend to increase or decrease we show that several effects are at work the state tends to evolve in the direction where joint payoffs are greater since joint payoffs are related to joint product market profits less joint effort costs there are two classes of effect the joint profit effect and various joint cost effects the latter result in part from the pattern of profits and in part from endpoint effects that give relief from efforts asymptotic expansions illuminate these influences moreover we show by numerical simulation that there is another kind of joint cost effect the pattern of joint effort costs can influence the pattern of evolution of market structure and the evolution of the pattern of market structure can influence the pattern of efforts in a mutually self reinforcing manner in particular there may be equilibria in which this last effect means that the laggard works harder than the leader even though all the other effects work in favour of the leader

competition economies of scale and diversity of firm sizes this paper presents an empirical example in which small firms are able to compete by specializing without monopolistic conduct despite economies of scale the viability of small commercial banks in illinois is established both by casual observation and by a finding of constant returns to scale not correcting for specialization a second specification of the cost function correcting for specialization exhibits economies of scale suggesting that specialization is the means by which small banks survive monopoly conduct is ruled out by a rosse panzar test rejecting the alternative hypothesis that monopoly power has allowed inefficient banks to survive

banking competition and macroeconomic performance this paper uses an equilibrium model to study the costs in terms of macroeconomic performance of imperfect competition in banking the social welfare effects of increased bank competition are complicated and ambiguous in general but measuring the consequences of increased bank competition with standard gauges of macroeconomic performance provides a clear conclusion increased bank competition raises the level of income and reduces the severity of business cycles the quantitative effect on macroeconomic performance of less competition in banking can be large for instance an imperfectly competitive banking system can produce a worse macroeconomic outcome than if the economy had no banks

a general model of r d competition and policy this article constructs a model of r d with heterogeneous firms each firm s probability of success is a function of its sunk and recurrent r d expenditures the social gains from an innovation are not fully captured by the successful firm the comparison of the social optimum and the market equilibrium involves balancing spillover and crowding effects pigovian corrective policies as well as strategic policies for a subset of colluding firms are discussed

sequential aggregation of verifiable information we introduce the notion of verifiable information into a model of sequential debate among experts who are motivated by career concerns we show that self censorship may hamper the eciency of information agg regation as experts withhold evidence contradicting the conventional wisdom in this case silence is telling and undermines the prevailing view over time if this view is incorrect as a result withholding arguments about the correct state of the world is only a temporary phenomenon and the probability of the correct state of the world being revealed always converges to one as the group of experts becomes large for small groups a simple mechanism the principal can use to improve decisionmaking is to appoint a devil s advocate

competition and performance the different roles of capital and labor abstract neoclassical economists argue that competition promotes efficiency but schumpeter argues that it is monopoly rents that help entrepreneurs to invest in r d we investigate the overall effect of competition on total factor productivity growth tfp growth we use rent defined as the factor reward above its perfectly competitive value as a negative measure of competition our main finding is that performance is positively associated with rents on capital but not with rents on labor neoclassical economists and schumpeter may both be right but the mechanisms differ

promoting competition in the presence of essential facilities this paper addresses how to use simple access pricing to promote entry in the presence of spillovers and essential facilities an inherent dilemma is that the greater the spillover the greater is the benefit of attracting good entrants but the harder it is to exclude low quality entrants because they can free ride on the quality of good entrants we show that the inability to discriminate between entrants has the effect of discouraging access prices that enable the low quality entrant to enter generates a time consistency problem and provides incentives for good quality entrants to limit their competitiveness

competition and commercial banks risk taking evidence from sub saharan africa region abstractthis study investigates the relationship between competition and the risk taking attitude of banks we test how this relationship manifests in the sub saharan african ssa region s commerci

wti and brent futures pricing structure abstract wti and brent crude oil futures are competing pricing benchmarks and they jockey for the number one position as the leading futures market the price spread between wti and brent is also an important benchmark itself as the spread affects international trade in oil refiner margins and the price of refined products globally in addition the shapes of the wti and brent futures curves reflect supply and demand fundamentals in the u s versus the world market respectively on the analysis of the relationship between the two futures prices we identify a structural break in the wti brent price spread in january 2011 and a break in the corresponding shapes of the futures curves around the same time the structural break was a consequence of a dramatic rise in u s production due to fracking a series of supply disruptions in europe binding storage constraints and the u s crude oil export ban these events are studied in the context of a simulation model of world oil prices we reproduce the stylized facts of the oil market and conclude that the 2011 break in pricing structure was consistent with standard commodity storage theory

strategic information revelation we analyze the problem in which agents have non public information and are to play an asymmetric information game the agents may reveal some or all of their information to other agents prior to playing this game revelation is via exogenously specified certifiable statements the equilibria resulting from various revelation strategies are used to determine equilibrium revelation of information sufficient conditions are provided for complete revelation of all private information a number of examples are provided illustrating when revelation will or will not occur in commonly analyzed games many economic problems are characterized by the presence of both strategic behaviour on the part of individuals and by asymmetric information models encompassing both of these characteristics have been used successfully to examine questions in many fields usually using the concept of bayesian nash equilibrium as the solution concept typically the agents information is given exogenously and is fixed throughout the analysis modelling the information structure as static is appropriate for some problems but not for all in particular situations that are inherently dynamic most economic encounters allow for some interchange between the agents before the outcome is settled irrevocably in such circumstances it is possible that at least one or more of the agents possessing non public information may be able to reveal part or all of his information to one or all of the other agents in the economy during the course of their contact to the extent that such a communication is believed by the other agents the priors of the other agents will change and we will have what is in essence a new asymmetric information game new in

the competitive conditions in the oecd manufacturing industry the goal of this study was to assess the intensity of competition in the oecd manufacturing industry by using the panzar and rosse index over the period 1970 2011 for this purpose we use the fully modified ols method and second generation unit root analysis to investigate the level of competition across two digit manufacturing sectors the results are robust and consistent with similar studies leading to the rejection of perfect collusion and perfect competition while providing evidence in favour of monopolistic competition similarly to other empirical studies h statistics are shown to be heterogeneous across manufacturing sectors we argue that more concentrated sectors such as food and beverages motor vehicles and furniture have low levels of h statistic being thus less competitive than other industries i e computers transportation equipment printing and chemicals where the h statistic is closer to unity lastly our analysis will be a useful policy tool to achieve structural micro economic

dynamics of electricity consumption oil price and economic growth global perspective this study uses the data from 157 countries from 1960 to 2014 to analyze the relationship between economic growth electricity consumption oil prices capital and labor the economic growth of developing countries with industrial infrastructure has a more significant association with electricity consumption than oil prices we use oil prices and electricity consumption jointly to study highly predictive observations for economic growth the data are categorized by income oecd and regional levels the panel cointegration long run parameter estimation and pool mean group tests are used to analyze the cointegration and short run and long run relationships between the variables the empirical results indicate the presence of cointegration between the variables the presence of feedback effects between electricity consumption and economic growth oil prices and economic growth is valid these findings confirm that in spite of the oil prices developing countries rely heavily on electricity consumption for economic growth in the short run growth and feedback effects suggest that more vigorous electricity policies should be implemented to attain sustainable economic growth for the long term

testing static oligopoly models conduct and cost in the sugar industry 1890 1914 we explore the widespread methodology of using demand information to infer market conduct and unobserved cost components under the hypothesis of static oligopoly behavior direct measures of marginal cost and conduct indicating small market power serve as benchmarks the more competitive models yield better cost estimates the best cost estimates occur when conduct is estimated as a free parameter which in turn only slightly underestimates our direct measure it also tracks the decline in market power accompanying the industry s structural changes the methodology is largely validated although partial cost information can improve its predictive power conclusions are robust to demand function

competition for market share or for market size oligopolistic equilibria with varying competitive toughness for an industry producing a composite commodity we propose a comprehensive concept of oligopolistic equilibrium allowing for a parameterized continuum of regimes varying in competitive toughness each firm sets simultaneously its price and its quantity under two constraints relative to its market share and to market size the price and the quantity equilibrium outcomes always belong to the set of oligopolistic equilibria when firms are identical and we let their number increase any sequence of symmetric oligopolistic equilibria converges to the monopolistic competition outcome further results are derived in the symmetric ces case concerning in particular the collusive solution enforceability

competition in banking and the lending channel evidence from bank level data in asia and latin america abstract this paper examines how banking competition affects the transmission of monetary policy through the bank lending channel we apply a two step estimation procedure using bank level panel data for commercial banks in 10 asian and 10 latin american countries during the period from 1996 to 2006 in the first step we measure the degree of banking competition by applying the methodology proposed by panzar and rosse 1987 in the second step we estimate a loan growth equation where the explanatory variables include the panzar rosse measure of banking competition the estimation results provide consistent evidence that increased competition in the banking sector weakens the transmission of monetary policy through the bank lending channel this is especially true for banks in latin american countries and banks of small size low liquidity and low capitalization we also discuss the policy implications of the main findings of this paper

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

news management and the value of firms the literature on asymmetric information has been concerned mainly with the problem of the informed party lying to the uninformed parties however in many cases the informed party will stop short of lying but will seek to gain from private information by managing the disclosure of news this article examines the pricing of a firm when there is such manipulation of news i model this situation as a variant of the persuasion game of milgrom and roberts 1986 in which i can parameterize the notion of the degree of credence placed by the market on the disclosures of the informed party an empirical hypothesis thrown up by the theory is that for otherwise identical firms a low price earnings ratio will be associated with a greater degree of positive skewness of the disclosure strategy

an application of the dea double bootstrap to examine sources of efficiency in bangladesh rice farming in this article we examine sources of technical efficiency for rice farming in bangladesh the motivation for the analysis is the need to close the rice yield gap to enable food security we employ the dea double bootstrap of simar and wilson 2007 to estimate and explain technical efficiency this technique overcomes severe limitations inherent in using the two stage dea approach commonly employed in the efficiency literature from a policy perspective our results show that potential efficiency gains to reduce the yield gap are greater than previously found statistically positive influences on technical efficiency are education extension and credit with age being a negative influence

the panzar rosse revenue test and market power in banking abstract the panzar rosse h statistic is a commonly used measure of market power in banking it is widely believed that h 0 is inconsistent with significant market power this study rigorously disproves that perception instead the possibility of h 0 under conditions of substantial market power turns out robust to the timing of banks actions relative costs choice of strategic variable degree of product differentiation strategy static or dynamic and degree of heterogeneity in banks conduct collusive versus fringe and hence may be common in practice

cheap talk and burned money we augment the standard crawford sobel 1982 econometrica 50 1431 1451 model of cheap talk communication by allowing the informed party to use both costless and costly messages the issues on which we focus are the consequences for cheap talk signaling of the option to burn money and the circumstances under which both cheap talk and burned money are used to signal information

the effect of information on product quality evidence from restaurant hygiene grade cards this study examines the effect of an increase in product quality information to consumers on e rms choices of product quality in 1998 los angeles county introduced hygiene quality grade cards to be displayed in restaurant windows we show that the grade cards cause i restaurant health inspection scores to increase ii consumer demand to become sensitive to changes in restaurants hygiene quality and iii the number of foodborne illness hospitalizations to decrease we also provide evidence that this improvement in health outcomes is not fully explained by consumers substituting from poor hygiene restaurants to good hygiene restaurants these results imply that the grade cards cause restaurants to make hygiene quality improvements

the evolution of market structure when there is a sequence of innovations the paper explores the question of how market structure evolves when there is a sequence of opportunities to innovate does one firm extend its technological superiority to become increasingly dominant or does technological leadership constantly change hands in a process of actionreaction a simple duopoly model is proposed in which the answer to this question depends upon the nature of product market behaviour in that model highly competitive product market behaviour leads to increasing dominance whereas cournot behaviour may lead to action reaction

competition conduct and demand elasticity abstract this paper demonstrates the relationship between the rosse panzar test for competitive conduct and the firm s elasticity of demand and develops a method of increasing the test s discriminating power

a blessing in disguise the implications of high global oil prices for the north american market abstract we examine the implications of increased unconventional crude oil production in north america this production increase has been made possible by the existence of alternative oil recovery technologies and persistently elevated oil prices that make these technologies commercially viable we first discuss the factors that have enabled the united states to expand production so rapidly and the glut of oil inventory that has accumulated in the midwest as a result of logistical challenges and export restrictions next we assess the extent to which the increase in u s domestic production will affect global supply conditions and whether the u s experience can be repeated in other countries with unconventional oil sources the evidence suggests that even in the best case scenario the increase in u s oil production is unlikely to have a large effect on the global oil market s demand supply balance so its effect on the price of oil is expected to be limited furthermore the united states enjoys unique infrastructural and technological advantages that make it unlikely that rapid increases in unconventional production can be achieved elsewhere

competition and growth with step by step innovation an example this paper develops a simple example to analyse the relationship between product market competition and growth in a model with step by step innovations where laggards can never leapfrog the current industry leaders but instead must first catch up with the leaders before battling for technological leadership in the future unlike in existing schumpeterian models of growth more intense product market competition and or imitations may be growth enhancing

manipulated news model electoral competition and mass media abstract this paper investigates the relationship between media manipulation the strategic suppression of relevant information by mass media and self mediatization the strategic exploitation of media coverage by candidates in elections in the model a voter cannot directly observe the policies proposed by two office motivated candidates the voter learns this information through media reports before voting takes place while the media outlet suppresses some of this information because the voter s decision making could be incorrect direct distortion the candidates have an incentive to win the election by influencing the media coverage through policy settings indirect distortion as a result policy convergence to the voter s ideal policy occurs if and only if the media bias is sufficiently small we then characterize the set of equilibria in terms of the degree of distortion the results suggest that if either strategic media manipulation or competition among the candidates is omitted then the distortion is nonnegligibly misspecified

global oil depletion a review of the evidence within the polarised and contentious debate over future oil supply a growing number of commentators are forecasting a near term peak and subsequent decline in production but although liquid fuels form the foundation of modern industrial economies the growing debate on peak oil has relatively little influence on energy and climate policy with this in mind the uk energy research centre ukerc has conducted an independent thorough and systematic review of the evidence with the aim of establishing the current state of knowledge identifying key uncertainties and improving consensus the study focuses upon the physical depletion of conventional oil in the period to 2030 and includes an in depth literature review analysis of industry databases and a detailed comparison of global supply forecasts this communication summarises the main findings of the ukerc study a key conclusion is that a peak of conventional oil production before 2030 appears likely and there is a significant risk of a peak before 2020

comment on what drives bank competition some international evidence the question of bank competition is vitally important for a number of reasons the essential role of bank credit and other financial services as an input in the production of most other goods and services places banks in a unique and influential position such that any allocative inefficiency or other market distortions in banking are almost certain to be felt throughout the economy moreover recent history has provided numerous instances where the textbook paradigm of atomistic competition has proven inadequate as a policy guide for efficient banking either because there are simply too few banks to rely on sheer numbers as a guarantee of vigorous competition as in canada or because of evidence that there can be such a thing as too much competition in banking as suggested by several studies or because of instances where nearly competitive pricing has been observed in markets containing only one or two banks or because conversely substantially noncompetitive pricing has sometimes been deduced in banking products such as credit cardswith thousands of suppliers thus the study of bank competition remains an urgent field of research claessens and laeven 2004 this issue of jmcb make two key contributions here first they extend a proven empirical method to an unprecedentedly large and varied crosscountry sample second they offer the logical and policy relevant additional step of seeking to identify factors associated with variations in measured conduct this step is needed to assess the empirical validity of the traditional structure conductperformance paradigm in their sample and is especially important where that paradigm is found lacking as a predictor of bank conduct indeed although the authors

competition and efficiency in the dutch life insurance industry the lack of available prices in the dutch life insurance industry makes competition an elusive concept that defies direct observation therefore this article investigates competition by analysing several factors which may affect the competitive nature of a market and various indirect measurement approaches after discussing various supply and demand factors which may constitute a so called tight oligopoly we establish the existence of scale economies and the importance of cost x inefficiency since severe competition would force firms to exploit available scale economies and to reduce x inefficiencies both scale economies and x inefficiencies turn out to be substantial although more or less comparable to those found for insurers in other countries and to other financial institutions further we apply the boone indicator a novel approach to measuring the effects of competition this indicator points to limited competition in comparison to other sectors in the netherlands further investigations of submarkets should reveal where policy measures in order to promote competition might be appropriate

on the dynamic efficiency of bertrand and cournot equilibria abstract this paper compares bertrand and cournot equilibria in a differentiated duopoly with r d research and development competition it shows that cournot competition induces more r d effort than bertrand competition however the price is lower and output is larger in bertrand than in cournot competition furthermore the bertrand equilibrium is more efficient than the cournot equilibrium if either r d productivity is low or spillovers are weak or products are very different if r d productivity is high spillovers are strong and goods are close substitutes then the bertrand equilibrium islessefficient than the cournot equilibrium journal of economic literatureclassification number l13

competition in the turkish banking industry this study employs the panzar rosse h statistic to assess the competitive environment of the turkish banking industry over the period 1990 to 2000 the results indicate that for the period under consideration bank revenues behaved as if they were earned under conditions of monopolistic competition therefore the observed high profitability of the turkish banking sector does not seem to be an indication of an increase in monopoly power the liberalization process and deregulation measures appear to have beneficial effects on competition

assessing competition with the panzar rosse model the role of scale costs and equilibrium the panzar rosse test has been widely applied to assess competitive conduct often in specifications controlling for firm scale or using a price equation we show that neither a price equation nor a scaled revenue function yields a valid measure for competitive conduct moreover even an unscaled revenue function generally requires additional information about costs and market equilibrium to infer the degree of competition our theoretical findings are confirmed by an empirical analysis of competition in banking using a sample containing more than 100 000 bank year observations on more than 17 000 banks in 63 countries during the years 1994 2004

when does a firm disclose product information a firm chooses a price and the product information it discloses to a consumer whose tastes are privately known we provide a necessary and sufficient condition on the match function for full disclosure to be the unique equilibrium outcome whatever the costs and prior beliefs about product and consumer types it allows for products with different qualities as well as some horizontal match heterogeneity with independently distributed product and consumer types full disclosure is always an equilibrium and a necessary and sufficient equilibrium condition is that all firm types earn at least the full disclosure profit

information transmission when the sender s preferences are uncertain abstract in deciding on the magnitude of a certain action say investment a decision maker relies on the report of an informed and interested expert who can suppress favorable information the main departure from the related literature is that the decision maker is uncertain as to whether the expert is of a type that wants to minimize the magnitude of the action or to maximize it the unique equilibrium outcome is fully characterized by a threshold level of favorable information if the information is more favorable than that threshold level and if the expert is of the type that wants to maximize the magnitude of the action the information is fully revealed in all other cases the expert report less favorable information and the equilibrium inference is that in expectation the actual information is just as favorable as the threshold level

persuasion with communication costs this paper studies strategic transmission of verifiable information with reporting costs that continuously increase in the precision of the report contrary to previous literature it is shown that the unraveling result first derived by milgrom 1981 is relatively robust to costly reporting a separating equilibrium exists even with arbitrarily high reporting costs intuitively the costs work as a signaling device and a combination of disclosure of information and costly signaling accomplishes full separation with reporting costs there are typically multiple equilibria for example a pooling equilibrium exists if and only if the reporting costs are high finally a separating equilibrium exists when the receiver has to make a costly effort in order to access the information in a report as long as this cost is not too high

preemptive patenting and the persistence of monopoly this article takes a different tack and inquires whether institutions such as the patent system create opportunities for firms with monopoly power to maintain their monopoly power the results apply to other situations such as brand identification spatial location and capacity expansion which share the characteristic that early or preemptive actions may lower the returns to potential competitors

competition and efficiency in the mena banking region a non structural dea approach abstractthe goal of this article is to empirically assess the relationship between competition and efficiency in the banking sector of middle east and north african mena countries spanning the period 1997 2011 to measure the level of competition the article estimates the non structural indicator known as the h statistic while the level of bank efficiency is estimated through the nonparametric methodology of the data envelopment analysis dea and the bootstrap data envelopment analysis bdea respectively the empirical results are robust under six econometric methodologies providing sufficient evidence for the presence of a one way negative granger causality running from efficiency to competition the empirical findings lead to the rejection of the efficient structure hypothesis implying that increases in competition do not precede increases in cost efficiency

competition market selection and growth we study the effect of the competitive selection process on the economy s rate of growth in an extension of standard quality ladder models of endogenous growth we allow for the possibility that in each period several asymmetric firms representing an endogenously determined number of past innovators may be simultaneously active in an industry stronger competitive pressure then has conflicting effects on the incentive to innovate lowering prices but also selecting the more efficient firms we show that the market selection effect of competition always increases the incentive to innovate and find circumstances in which it can outweigh the traditional negative effect of lower prices

competitive conditions among the major british banks this paper reports an empirical assessment of competitive conditions among the major british banks during a period of major structural change specifically estimates of the rosse panzar h statistic are reported for a panel of 12 banks for the period 1980 2004 the sample banks correspond closely to the major british banking groups specified by the british banking association the robustness of the results of the rosse panzar methodology is tested by estimating the ratio of lerner indices obtained from interest rate setting equations the results confirm the consensus finding that competition in british banking is most accurately characterised by the theoretical model of monopolistic competition there is evidence that the intensity of competition in the core market for bank lending remained approximately unchanged throughout the 1980s and 1990s however competition appears to have become less intense in the non core off balance sheet business of british banks

impact of bank competition on the interest rate pass through in the euro area this article analyses the impact of loan market competition on the interest rates applied by euro area banks to loans during the period 1994 2004 using a novel measure of competition called the boone indicator we find evidence that stronger competition implies significantly lower spreads between bank and market interest rates for most loan market products in line with expectations this result implies that stronger competition causes both lower bank interest rates and a stronger pass through of market rate changes into bank rates evidence of the latter is also presented by our error correction model ecm for bank rates further banks compensate income losses from increased loan market competition by offering lower deposit rates our findings with respect to the loan market rates have important monetary policy implications as they suggest that measures to promote competition in the european banking sector are likely to render the monetary policy transmission mechanism more effective

competition in fragmented markets new evidence from the german banking industry in the light of the subprime crisis abstract of all of the eu member states germany has the largest banking market however not all german banking institutions necessarily face fierce competition because the industry is highly fragmented strict separation of the three existing banking pillars may impede competition with negative effects on financial stability we assess the competitive stances of 1 888 universal banks from 2001 to 2009 by using the panzar rosse revenue test we find evidence that measuring competition at an average country level does not necessarily generate valid evaluations of fragmented markets in addition we find no clear indication that either the particular objectives of cooperative and savings banks or the legal protection of these institutions impedes competition or discriminates against private banks therefore as long as the relationship between competition and financial stability is dubious the overall effect and the social costs or benefits of political measures that influence the structure of the german banking market are at least questionable

the failure of competition in the credit card market the bank credit card market containing 4 000 firms and lacking regulatory barriers casually appears to be a hospitable environment for the model of perfect competition nevertheless this article reports that credit card interest rates have been exceptionally sticky relative to the cost of funds moreover major credit card issuers have persistently earned from three to five times the ordinary rate of return in banking during the periods 1983 88 the failure of the competitive model appears to be partly attributable to consumers making credit card choices without taking account of the very high probability that they will pay interest on their outstanding balances copyright 1991 by american economic association

competition policy and innovation l article analyse les complementarites et les tensions entre la concurrence et l innovation tant du point de vue des instruments d analyse que du point de vue des politiques economiques

non structural measures of competition toward a synthesis of alternatives abstract procedures for detecting or measuring market power have been suggested in recent years by iwata rosse and panzar and bresnahan this paper integrates elements from all three approaches to provide a single more unified alternative to the structure conduct performance paradigm

multimarket contact competition and pricing in banking abstract in this paper we assess the impact of multimarket contact of banks on their market power by means of a simultaneous equation model in which the divergence of price from marginal cost is a function of multimarket linkages the model is estimated using aggregate data from the italian regions for the years 1997 2009 our results show that multimarket contact is positively and significantly correlated to the market power index and is also connected to both home and non home market concentration the evidence is robust to changes in model specification and multimarket contact measures and supports the idea that firms which have a greater amount of contact are more likely to collude

assessing competition in the banking industry a multi product approach abstract this paper investigates the competitive aspects of multi product banking operations extending panzar and rosse s 1987 model to the case of a multi product banking firm we show that higher economies of scope in multi product banking are associated with lower panzar rosse measures of competition in the banking sector to test this empirical implication and determine the impact of multi production on market power we use a new dataset on the brazilian banking industry consistent with our theoretical prediction we find that banks that offer classic banking products i e loans and credit cards and other banking products i e brokerage services insurance and capitalization bonds have substantially higher market power than banks that offer only classic products these results suggest a positive bias in the traditional estimates of competition in which multi output actions are not considered

product market competition and the value of innovation evidence from us patent data this study investigates the relationship between product market competition and the market value of innovation using firm level patent data of us firms over the period 1977 2005 we find that there is an inverted u shaped relationship between competition and the value of innovation furthermore we show that there is an asymmetric causal effect of intensifying product market competition on the market value of innovation using a quasi natural experiment based on tariff cut events for us manufacturing firms between 1977 and 2006 a firm s incentive to innovate tends to get stronger in response to a tariff cut when product market competition is very mild while it tends to get weaker when very severe

intensity of competition and the incentive to innovate abstract the effects of intensity of product market competition on r d incentives are analysed in a model capturing the strategic interactions between firms with different cost levels first four axioms are proposed that a measure of intensity of competition should satisfy then the effects of intensity of competition on the value of the innovation are analysed and it is shown that the axioms imply the existence of a non monotone relation between intensity of competition and the value of an innovation

heterogeneous policies heterogeneous technologies the case of renewable energy this paper investigates empirically the effect of market regulation and renewable energy policies on innovation activity in different renewable energy technologies for the eu countries and the years 1980 to 2007 we built a unique dataset containing information on patent production in eight different technologies proxies of market regulation and technology specific renewable energy policies our main finding is that compared to privatisation and unbundling reducing entry barriers is a more significant driver of renewable energy innovation but that its effect varies across technologies and is stronger in technologies characterised by potential entry of small independent power producers in addition the inducement effect of renewable energy policies is heterogeneous and more pronounced for wind which is the only technology that is mature and has high technological potential finally ratification of the kyoto protocol which determined a more stable and less uncertain policy framework amplifies the inducement effect of both energy policy and market liberalisation

2014 oil plunge causes and impacts on renewable energy abstract following four years of relative stability at around 106 per barrel bbl oil prices have declined sharply since june 2014 and are expected to remain low for a considerable period of time there are multiple factors which are being considered behind the plunge in the price of oil since june 2014 most observers have conjectured that domestic oil boom in the united states and iraq is the major cause for the falling oil prices some have suggested that a major shock to oil price expectations occurred after the november 2014 meeting of opec when they did not cut production despite the steady increase in non opec oil production in this paper first we analyzed the effect of various factors on the oil prices and then we studied impacts of the falling oil prices on non hydro renewable energy we compare the recent decline in oil prices with previous episodes up to 1996 we show that the demand and supply formula cannot be implemented to the current oil plunge the study shows that so far the recent plunge in oil prices has produced no major impact on renewable energy sector we found that renewable energies such as solar and wind are increasingly becoming cost competitive with fossil fuel energy however the oil price crash could hurt the short term outlook for certain specific clean energy technologies such as bio fuel and electric vehicles that do compete with oil based transportation while long term low oil prices may threaten renewable energies climate policies have the potential to act as a counterweight encouraging long term low carbon investment

the joint estimation of bank level market power and efficiency the aim of this study is to provide a methodology for the joint estimation of efficiency and market power of individual banks the proposed method utilizes the separate implications of the new empirical industrial organization and the stochastic frontier literatures and suggests identification using the local maximum likelihood lml technique through lml estimation of market power of individual banks becomes feasible while a number of restrictive theoretical and empirical assumptions are relaxed the empirical analysis is carried out on the basis of emu bank data market power estimates indicate fairly competitive conduct in general however heterogeneity in market power estimates is substantial across banks the latter result suggests that the practice of some banks deviates from the average fairly competitive behavior a finding that has important policy implications finally efficiency and market power present a negative relationship which is in line with the so called quiet life hypothesis

market structure and the role of consumer information in the physician services industry an empirical test abstract this paper applies panzar and rosse s 1987 econometric test of market structure to examine two long debated issues what is the market structure for physician services do more physicians in a market area raise the search cost of obtaining consumer information and increase prices satterthwaite 1979 1985 for primary care and general and family practice physicians the monopolistically competitive model prevailed over the competing hypotheses monopoly perfect competition and monopolistic competition characterized by consumer informational confusion although less conclusive there is some evidence to support the monopolistically competitive model for surgeons and the consumer informational confusion model for internal medicine physicians

relying on the information of interested parties we investigate the conventional wisdom that competition among interested parties attempting to influence a decisionmaker by providing verifiable information elicits all relevant information we find that if the decisionmaker is strategically sophisticated and well informed about the relevant variables and about the preferences of the interested party or parties competition may be unnecessary to achieve this result if the decisionmaker is unsophisticated or not well informed competition is not generally sufficient if the interested parties interests are sufficiently opposed however or if the decisionmaker is seeking to advance the parties welfare then competition can reduce or even eliminate the decisionmaker s need for prior knowledge about the relevant variables and for strategic sophistication in other settings only the combination of competition among information providers and a sophisticated skepticism is sufficient to allow effective decisionmaking

secrecy two sided bias and the value of evidence abstract we provide necessary and sufficient conditions on players preferences for a verifiable message game to possess a separating equilibrium and or a pooling equilibrium as well as sufficient conditions for every equilibrium of such a game to be pooling we also characterize all nonseparating equilibria and use this property to show that less information might be conveyed in any equilibrium of a verifiable message game than in some equilibrium of the cheap talk game with the same parameters