contracts as a barrier to entry it is shown that an incumbent seller who faces a threat of entry into his or her market will sign long term contracts that prevent the entry of some lower cost producers even though they do not preclude entry completely moreover when a seller possesses superior information about the likelihood of entry it is shown that the length of the contract may act as a signal of the true probability of entry

the incentive for conservation investment in regulated utilities abstract some public utilities have implemented programs which call for their direct investment in residential energy conservation measures this paper examines the set of regulatory circumstances in which a rational regulated utility would have an incentive for such investment given this regulatory environment we determine whether or not the utility will invest in the correct amount in the sense of economic efficiency finally we analyze how corrective regulatory policy can aid in attaining the goal of economic efficiency

tying as a response to demand uncertainty this article examines requirements tying of a competitively supplied good to a monopolized good it expands the set of market conditions in which this instrument is known to be profitable with heterogeneous privately informed buyers a firm can profit by tying two goods even when demands for the goods are price independent providing the demands are stochastically dependent we investigate the profitability of tying as a response to stochastic demand as well as the effects of tying on prices and the extent of the market served

some reflections on analysis of high frequency data finance is arguably the most empirically oriented of all the social sciences this is in part due to the deliberate practical orientation and the ready availability of high quality financial market data in recent years the ever lower costs of data recording and storage have driven the phenomenon to the ultimate limit for some markets we may have access to time stamped observations on all quotes and transactions denoted ultra high frequency data by engle in press these data are of direct interest for market microstructure issues dealing with the price discovery process the market infrastructure the strategic behavior of market participants and the modeling of real time market dynamics moreover the advent of ultra high frequency data poses interesting challenges to empirical work and it has inspired the developments of new econometric and statistical tools dealing with such complications as a random daily number of time series observations with a random time between arrivals in addition the discrete price grid can distort inference concerning the asset price dynamics at the highest frequencies finally any price series now has an associated string of natural conditioning variables for example volume news time of day time between transactions or quotes concurrent prices of similar assets and so forth although current work is making strides on all these fronts how to deal with the majority of these jointly is still an open question interesting surveys of the literature were provided by hasbrouck 1996 goodhart and o hara 1997 and engle in press as such the ability of high frequency data to provide information about market microstructure issues is well recognized because the other participants in this discussion undoubtedly will discuss these developments i shall instead concentrate my brief remarks on a different use of highfrequency data that is perhaps as of yet less appreciated namely the ability of such data to shed new light on issues concerning the distribution of lower frequency speculative returns

backward stealing and forward manipulation in the wto abstract motivated by the structure of wto negotiations we analyze a bargaining environment in which negotiations proceed bilaterally and sequentially under the most favored nation mfn principle we identify backward stealing and forward manipulation problems that arise when governments bargain under the mfn principle in a sequential fashion we show that these problems impede governments from achieving the multilateral efficiency frontier unless further rules of negotiation are imposed we identify the wto nullification or impairment and renegotiation provisions and its reciprocity norm as rules that are capable of providing solutions to these problems in this way we suggest that wto rules can facilitate the negotiation of efficient multilateral trade agreements in a world in which the addition of new and economically significant countries to the world trading system is an ongoing process

resale price maintenance and collusion the article revisits the conventional wisdom according to which vertical restrictions on retail prices help upstream firms to collude we analyze the scope for collusion with and without resale price maintenance rpm when retailers observe local shocks on demand or retail costs in the absence of rpm retail prices react to retailers information and deviations from collusive behavior are thus difficult to detect by eliminating retail price flexibility rpm facilitates the detection of deviations but reduces profits and thus increases the short run gains from a deviation overall rpm can facilitate collusion and reduce total welfare when firms adopt it

investment in competitive electricity scope for incentive contracts abstract there is considerable interest in investment in electric power but few projects have actually taken off the situation with investor owned plant is that recovery of the total costs of a new power station via tariffs in the usual way is not automatic the difficulty most often is that the investor and the host system or government need to negotiate on issues such as long term energy pricing the rate of return risk sharing and long term guarantees this paper argues that incentive contracts incorporating risk sharing parameters whose values are set to account for perceptions of risk magnitude and the degree of willingness to take risk are a promising approach to the problem the scope of incentive power contracts the spatial relationship between return and parameters and the methods of deciding parameter values are discussed

the principal agent relationship with an informed principal ii common values in many circumstances a principal may have relevant private information when she proposes a contract to an agent we analyze such a principal agent relationship as a noncooperative game the principal proposes a contract which is accepted or rejected by the agent who for most of our analysis has no private information the contract is executed if accepted otherwise the reservation allocation takes effect this allocation may be determined by a pre existing contract which the principal by her proposal is attempting to renegotiate or it may simply be the no trade point in this paper we assume that the principal s information directly affects the agent s payoff before solving the game we discuss pareto efficiency with asymmetric information we define an incentive compatible allocation to be weakly interim efficient wie if there exists no alternative incentive compatible allocation that both parties prefer for all possible beliefs that the agent might have about the principal s private information type we show that any wie allocation is interim efficient ie for some beliefs the rothschild stiglitz wilson rsw allocation relative to the reservation allocation l is the allocation that maximizes the payoff of each type of principal within the class of incentive compatible allocations that guarantee the agent at least the utility he gets from a irrespective of his beliefs about the principal s type the equilibrium set of the contract proposal game consists of the allocations that weakly pareto dominate the rsw allocation thus there is a unique equilibrium outcome if and only if the latter is ie and the equilibrium outcome is the rsw allocation itself after characterizing the equilibrium allocations we study those that are renegotiation proof when either the principal or the agent leads the renegotiation we then compare our contract proposal game which is a signaling model with its screening counterpart we conclude by extending our results to the case in which the agent as well as the principal has private information under the assumption of quasi linear preferences

nonlinear pricing and exclusion ii must stock products dominant firms often are unavoidable trading partners buyers may consider switching a fraction of their requirements to rival products but that fraction is highly uncertain in rapidly evolving industries nonlinear pricing serves to adjust the competitive pressure placed on rival firms depending on the joint distribution of the buyer willingness to pay for the rival s good and the share of contestable demand concave price quantity schedules erect barriers to entry convex parts in schedules introduce barriers to expansion dominant firms use all units discounts to create high entry barriers for rival firms with intermediate levels of contestable demand

the value of embedded real options evidence from consumer automobile lease contracts under the common assumption of constant interest rates we show that penalties for early termination of a lease are often structured in such a way that the cancellation option embedded in consumer automotive leases has little value furthermore our estimates drawn from a sample of three popular car models over 1990 to 2000 indicate that the stand alone value of the lease end purchase option is on average about 16 of the market value of underlying used vehicles or about 1 462 per contract finally we examine the sensitivity of our option value estimates to model parameters and default risk recent years have witnessed a dramatic growth in the leasing of automobiles for instance overall industry sales data indicate that about a third of the new vehicles and trucks sold in the united states are leased hendel and lizzeri 2002 and miller 1995 and the federal reserve board survey of family finances reports that the use of leased vehicles by individuals nonbusiness consumers has risen from 2 9 to 5 8 over the 1992 to 2001 period azicorbe kennickell and moore 2003 consumer automobile lease contracts for new cars often include two embedded options that are not associated with a typical debt contract the first is a cancellation option that allows the lessee to terminate the lease early the second is a european call option which gives the lessee the right but not the obligation to purchase the leased used vehicle at the scheduled termination of the lease at a predetermined exercise price both of these options are simple examples of real options because the asset underlying these options is a used car that is a real asset however these options constitute a special case of real options since they are embedded in the lease contract which is a financial credit instrument theoretical analyses of lease contracts show that the cancellation option is quite valuable schallheim and mcconnell 1985 with respect to the purchase option hendel and lizzeri 2002 argue that they can play an important role in

incentives for unaware agents the paper introduces the problem of unawareness into principalagent theory and discusses optimal incentive contracts when the agent may be unaware of her action space depending on the agent s default behavior it can be optimal for the principal to propose an incomplete contract that keeps the agent unaware or a complete contract the key tradeoff is that of enlarging the agent s choice set versus adding costly incentive constraints if agents differ in their unawareness optimal contracts show a self reinforcing pattern if there are few unaware agents in the economy optimal contracts promote awareness if unawareness is wide spread optimal contracts shroud the contracting environment thus keeping the agent unaware

portfolio choice of government incentives the case of commercialization of a new coal based technology economic and financial incentives have become accepted tools for the implementation of government policies such as encouraging the widespread use of new technologies that offer significant economic and political benefits at the macroeconomic level but are not well perceived by managers at the micro level due to significant retrofitting costs this study using portfolio and real investment theories develops a quantitative methodology for selecting the optimal mix of incentives based on financial and operating factor sensitivities of the targeted firms in an uncertain environment the proposed methodology overcomes several shortcomings of previous studies the study applies the suggested method to a recent dod doe 1995 g project data that estimates the net benefits of a new coal based technology the results show that government policies based on a combination of incentives are more effective than individual incentive based policies the empirical analysis of firms which account for the 163 boiler sites in the sample reveals that the optimal incentive package is weighted about 2 1 in favor of tax incentives versus research and development subsidies

forecasting volatility in the indian equity market using return and range based models abstractin this article we assess the time varying volatility of the national stock exchange in the indian equity market using unconditional estimators and asymmetric conditional econometric models the volatility estimate and forecast is computed from the interday return and intraday range based data of the exchange s flagship index cnx nifty for the time period spanning 1 january 2009 through 31 december 2013 these are our findings first we determine that the time varying volatility of the index is asymmetric with qualities of stationarity and leptokurtic distribution second the one step ahead volatility forecast derived from the univariate time series parameters through the gjr garch process indicates that the model evaluation criteria of the autoregressive process tends towards range based models vis a vis a return based model the validity of this methodology is further analysed with the superior predictive ability test the outcome of which supports the use of range based conditional mo

markets for electricity in europe competition in the electricity industry requires properly functioning wholesale markets this paper discusses the better established electricity markets of europe in the nordic countries england and wales and spain the different market designs can all produce efficient outcomes if not hindered by market power long term contracts provide some defence against market power and give price stability to promote investment competition in electricity retailing may discourage retailers from signing long term contracts in future

the linkages persistence asymmetry in the volatility the price discovery and efficiency and the effect of the us subprime mortgage financial crisis on the spot and the futures market s returns the case of india abstractthis article examines the effects of persistence asymmetry and the us subprime mortgage crisis on the volatility of the returns and also the price discovery efficiency and the linkages and causality between the spot and futures volatility by using various classes of the arch and garch models and through the granger s causality we have used two indices one for spot and the other for futures for the daily data from 12 june 2000 to 30 september 2013 from nifty stock indices we have then tested for arch effects and subsequently employed various models of the arch and garch conditional volatility the garch 1 1 model is found to be significant and it implies that the returns are not autocorrelated and have short memory it supports the hypothesis of the efficiency of the markets the negative news has more significant effect on volatility corroborating the leverage impact in finance on market volatility we have also tested the volatility spillover effects the two methods we employed

strategic ex ante contracts rent extraction and opportunity costs this article cosiders the possibility that a seller can contract with one uninformed buyer prior to an auction involving two potential buyers the seller s optimal strategic ex ante contract more accurately reflects joint opportunity costs of the seller and the contracted buyer and therefore extracts more rent from the entrant moreover this ex ante contract mitigates the seller s ex post rent seeking vis a vis the contracted buyer accordingly it may create more social welfare than the absence of ex ante contracts depending upon the contracted buyer s financial constraint and the distributions of trade surplus implementation of the optimal strategic ex ante contract and policy implications are discussed

golden cages for showy birds optimal switching costs in labor contracts under what circumstances do workers sign contracts with high quitting penalties our answer points to market transparency when the worker s performance is privately observed by the incumbent 4rm alternative employers face an adverse selection problem as a result e7cient separations can only take place through involuntary layo8s and there is no role for quitting fees in contrast when performance is public quitting fees are useful devices to appropriate the surplus from workers reallocation separations are amicable and take the form of quitting after downwardly renegotiating the fees qualitative features of contracts are independent of the distribution of ex post bargaining power the impact of switching costs on total welfare and its distribution depends on the degree of market transparency and the ex ante distribution of market power c

an equilibrium selection theory of monopolization we develop a duopoly model in which firms compete for the market e g investing in process innovation or product development as well as in the market e g setting quantities or prices competition for the market generates multiple equilibria that differ in the firms investment levels relative size and profitability we show that monopolization that affects competition in the market can act as an equilibrium selection device in competition for the market in particular it eliminates equilibria that are undesirable for the monopolizing firm while not generating new equilibria this result complicates the task of determining whether a firm s dominance in a given market is the result of fair competition or unlawful monopolization we discuss a number of implications for antitrust policy and litigation and illustrate these by means of two well known antitrust cases

exclusionary vertical contracts and product market competition this article considers whether a monopolist is able to deter more efficient entrants through contracting with buyers in the antitrust literature the chicago school s stand is that such contracts cannot be anticompetitive hence vertical contracts should be accorded per se legal status in a four stage game with the following features 1 the incumbent enjoys a first mover advantage 2 the entrant must incur some sunk cost to enter the market and 3 entry is uncertain the author shows that vertical contracts can be anticompetitive if there exists product market competition thus the author advocates caution in treating all contracts as per se legal a three factor repeated measures experiment tested the effect of leadership style charismatic structuring and considerate on performance improvement on a manufacturing task over four trials findings from a repeated measures multivariate analysis of variance indicated that individual exposed to considerate leadership had superior initial performance but that this difference faded over time further analysis indicated that self efficacy fully mediated the relationship between leadership style and performance copyright 1999 by university of chicago press

vertical foreclosure with the choice of input specifications we develop an equilibrium model of vertical foreclosure with the choice of input specifications vertical foreclosure occurs as the upstream division of the integrated firm makes a specialized input for its sister downstream division while it would as an independent firm provide a generalized input the changes in incentives with vertical integration can be explained by the externalities the choice of a specialized input entails vertical integration allows the upstream firm to internalize the benefit of raising the rival firm s costs at the downstream level we derive conditions for equilibrium vertical foreclosure to occur and discuss its welfare consequences

an evaluation of volatility forecasting techniques the existing literature contains conflicting evidence regarding the relative quality of stock market volatility forecasts evidence can be found supporting the superiority of relatively complex models including arch class models while there is also evidence supporting the superiority of more simple alternatives these inconsistencies are of particular concern because of the use of and reliance on volatility forecasts in key economic decision making and analysis and in asset option pricing this paper employs daily australian data to examine this issue the results suggest that the arch class of models and a simple regression model provide superior forecasts of volatility however the various model rankings are shown to be sensitive to the error statistic used to assess the accuracy of the forecasts nevertheless a clear message is that volatility forecasting is a notoriously difficult task

loyalty discounts and price cost tests abstract we analyze by means of a formal economic model the use of the discount attribution test to assess the competitive effects of loyalty discounts the discount attribution test is a variant of the price cost test where the discount is attributed only to the share of total demand that is regarded as effectively contestable in the model a dominant firm enjoys a competitive advantage over its rivals and uses market share discounts to boost the demand for its own products in this framework we show that the attribution test is misleading or at best completely uninformative our results cast doubts on the applicability of price cost tests to loyalty discount cases

exclusive dealing investment promotion may facilitate inefficient foreclosure this paper studies a model whereby exclusive dealing ed can both promote investment and foreclose a more efficient supplier since ed promotes the incumbent seller s investment the seller and the buyer realize a greater surplus from bilateral trade under exclusivity hence the parties involved may sign an ed contract that excludes a more efficient entrant in circumstances where ed would not arise absent investment the paper therefore invites a more cautious attitude towards accepting possible investment promotion arguments as a defense for ed

collusion exclusion and inclusion in random order bargaining this paper examines the profitability of three types of integration in a cooperative game solved by a random order value e g the shapley value collusion between players i and j is a contract merging their resources in the hands of one of them say i this contract can be represented as a combination of exclusion which lets i exclude j s resource but not use it himself and inclusion which lets i use j s resource but not exclude j from it this representation yields a third difference condition on the characteristic function that determines the profitability of collusion generalizing existing results for specific games namely collusion is profitable unprofitable when the complementarity of the colluding players is reduced increased by other players

presidential address antitrust restrictions on single firm strategies this article offers an overview of selected developments in the law and economics of antitrust regulation of single firm strategies the strategy generating the most cases historically is resale price maintenance here the law has moved sharply in both canada and the u s towards more solid economic foundations yet a gap between the law and economics remains the economics of resale price maintenance is reviewed within a framework that is much simpler and more general than the existing literature the law on a second strategy predatory pricing represents in my view a success story for the influence of economic theory in spite of the absence of a single accepted theory of predatory pricing the remaining single firm strategies are concerned largely with the exclusion by a dominant firm of rivals from a market i review with application to cases the two most basic questions concerning exclusionary strategies are exclusionary anticompetitive contracts ever entered into voluntarily by market participants on the other hand is complete or substantial foreclosure of a market through exclusionary strategies necessarily anticompetitive cette allocution presidentielle a l association canadienne d economique presente une vue d ensemble des developpements dans le droit et l economie de la reglementation antitrust sur les strategies d une firme unique la loi sur la strategie qui genere historiquement le plus de cas le maintien du prix de revente a change dramatiquement au canada et aux etats unis et derive vers une politique qui a des assises economiques solides mais il reste un ecart entre le droit et l economie on reexamine l economie du maintien du prix de revente a l aide d un cadre d analyse qui est a la fois plus simple et plus general que ce qui existe dans la litterature specialisee la loi pour ce qui est d une seconde strategie prix d eviction est a mon avis une grande reussite pour la science economique malgre l absence d une seule theorie du prix d eviction generalement acceptee un troisieme ensemble de strategies concerne l exclusion de ses rivaux d un marche par la firme dominante l auteur reexamine avec un recours extensif aux cas les deux questions de base pour ce qui est des strategies d exclusion est ce que les participants sur un marche entrent jamais volontairement dans un arrangement contractuel qui exclut et est anticoncurrentiel d autre part est ce que la saisie complete ou substantielle d un marche par des man uvres d exclusion est necessairement anticoncurrentielle

rebates as incentives to exclusivity we show how rebates or fidelity discounts that take the form of lump sum payments made to retailers can be used by an incumbent manufacturer to achieve exclusivity and to deter the entry of a more efficient rival the results which hold whatever the degree of differentiation between retailers and whatever the cost advantage of the entrant are found despite minimizing asymmetries that may favour the incumbent as such there is no need to introduce buyers disorganization discriminatory offers economies of scale non coincident markets or liquidated damages to find that exclusivity can lead to anti competitive effects

naked exclusion efficient breach and downstream competition previous papers by eric b rasmusen j mark ramseyer and john s wiley jr 1991 and ilya r segal and michael d whinston 2000 argue that exclusive contracts can inefficiently deter entry in the presence of scale economies and multiple buyers we first show that these results no longer hold when buyers are final consumers who can breach these contracts and pay expectation damages we then show however that exclusive contracts can inefficiently deter entry if buyers are downstream competitors even in the absence of scale economies and even if breach is possible

exclusive quality exclusive quality in the case of vertically differentiated products bertrand competition at the retail level does not prevent an incumbent upstream firm from using exclusivity contracts to deter the entry of a high quality rival indeed because of differentiation the incumbent s inferior product is not eliminated upon entry due to the resulting competitive pressure a retailer who considers rejecting the exclusivity contract expects to earn much less than the incumbent s monopoly rents thus in equilibrium the incumbent can always offer high enough an upfront payment to induce all retailers to sign the contract and achieve exclusion this is true under linear pricing for intermediate levels of entry costs and with two part tariffs even in the absence of entry costs copyright 2010 the author the journal of industrial economics 2010 blackwell publishing ltd and the editorial board of the journal of industrial economics

the british electricity experiment the privatization of the electricity supply industry esi in britain which began 1990 is in itself an unremarkable event much of the esi is privately owned in several european countries and in the united states and the u k privatization program has embraced utilities since 1984 when british telecom was privatized the thing that is remarkable about recent policy toward the industry is the radical nature of the regulatory reform accompanying privatization a vertically integrated administered generation and transmission structure was replaced overnight on march 31 1990 by one that is deintegrated and market based generation and transmission have been separated and there has been an attempt to establish competition in generation a number of countries have been moving gradually in the direction of encouraging competition but nowhere else have such dramatic changes been implemented so quickly

incentives to invest in liberalised electricity industries in the north and south differences in the need for suitable institutional arrangements the issue of investment is all too often underplayed in deregulation reforms focused on market rules and de integration measures this presentation criticises first the optimistic approach of the theory of investment incentives through market signals when it is applied to deregulated electricity industries the greater part of the investment in base load and peak equipment should be made profitable by income from very high prices during peak and extreme peak periods that raises a problem of political acceptability the problem is then addressed in the context of the mature electricity industries in the north given the maturity of markets there a number of modifications to the pure market model could be envisaged to strengthen incentives to invest but none of them is perfect the main way is to focus on adaptation of market rules on the supply of power at peaks and extreme peaks by considering capacity adequacy as a public good with three solutions capacity payment reserve obligations centralised procurement by auctioning for peak capacity observation of reforms suggests also the validity of some other solutions based on a limitation of the competition by allowing long term contracts and vertical integration between production and supply finally the question is extended to the specific problem of developing countries characterised by irregular growth it is argued that reforms must be designed in view of the importance of the need for investment through long term coordination and reduction of investment risks indeed experiences of latin american liberalised industries show that they have to include a number of competition based imperfections and to allow ongoing exercise of market power in order to allow prices to rise above competition prices the single buyer model or some variants of it appear to be good alternatives if one wishes to avoid the twists and turns of the competition paradigm the difficulty with this model arises from the institutional conditions necessary to make it efficient and not overcostly c 2005 elsevier ltd all rights reserved

contracts and externalities how things fall apart a single principal interacts with several agents offering them contracts the crucial assumption of this paper is that the outside option payoffs of the agents depend positively on how many uncontracted or free agents there are we study how such a principal unwelcome though he may be approaches the problem of contract provision to agents when coordination failure among the latter group is explicitly ruled out two variants are considered when the principal cannot re approach agents there is a unique equilibrium in which contract provision is split up into two phases in phase 1 simultaneousoffers at good though varying terms are made to a number of agents in phase 2 offers must be made sequentially and their values are discontinuously lower they are close to the very lowest of all the outside options when the principal can repeatedly approach the same agent there is a multiplicity of equilibria in some of these the agents have the power to force delay they can hold off the principal s overtures temporarily but they must succumb in finite time in both models despite beingable to coordinate their actions agents cannot resist an invasion by the principal and hold to their best payoff it is in this sense that things eventually fall apart

naked exclusion an experimental study of contracts with externalities this paper reports the results of an experiment designed to assess the ability of an incumbent seller to profitably foreclose a market with exclusive contracts we use the strategic environment described by rasmusen ramseyer and wiley 1991 and segal and whinston 2000 where entry is unprofitable when sufficiently many downstream buyers sign exclusive contracts with the incumbent when discrimination is impossible the game resembles a stag hunt coordination game in which the buyers payoffs are endogenously chosen by the incumbent seller exclusion occurs when the buyers fail to coordinate on their preferred equilibrium two way non binding pre play communication among the buyers lowers the power of exclusive contracts and induces more generous contract terms from the seller when discrimination and communication are possible the exclusion rate rises divide and conquer strategies are observed more frequently when buyers can communicate with each other exclusion rates are significantly higher when the buyers payoffs are endogenously chosen rather than exogenously given finally secret offers are shown to decrease the incumbent s power to profitably exclude

reforms in the french power system from weak contestability to effective competition abstract one way to introduce competition in the power industries is to preserve the integration of the incumbent companies and to organise the access of potential competitors to the network on a fair basis but the combination of hierarchy and bilateral contracts between entrants ipp candidates foreign producers intermediaries suppliers and consumers appears to be unstable because of permanent tensions between the incumbent s dominant position and fair competition moreover in an institutional environment enlarged by the supranational powers of the european union heterogeneity of rules and structures between quasi integrated power industries and decentralised competitive ones are sources of permanent questioning the paper analyses the stability of the recent reform of the french power industry the extreme integration of which being deeply rooted in the french institutional peculiarities has been weakly affected by the directive 96 92 transcription two institutional scenarios are defined which give a different weight to two competition paradigms in conflicts one pertains to the industrial policy which inclines to preserve hierarchy in the national area to gain national champion s competitive advantages in the european as in the global field and the other to the neo classical paradigm of effective competition in the first scenario the integration of the industrial organisation is preserved but with transparent grid access rules supposed to create an actual market contestability and the playing field is the continental europe on which national champions compete in the second one the french industrial organisation has to conform to the competitive model with vertical and horizontal disintegration and creation of a power exchange market for promoting competition but this scenario is heavily strained by the institutional determinism of the nuclear legacy the future reality should be set between these two scenarios

contractual signaling relationship specific investment and exclusive agreements i analyze a model of hold up with asymmetric information at the contracting stage the asymmetry of information concerns the value of trade with external parties i show that contractual signaling and efficiency of investment can conflict if only quantity is contractible this conflict generates inefficient equilibria in terms of investment contracting on exclusivity in addition to quantity resolves the conflict and consequently eliminates the inefficiency of investment

exclusive contracts and market dominance we propose a new theory of exclusive dealing the theory is based on the assumption that a dominant firm has a competitive advantage over its rivals and that the buyers willingness to pay for the product is private information in this setting the dominant firm can impose contractual restrictions on buyers without necessarily compensating them implying that exclusive dealing contracts can be both profitable and anticompetitive we discuss the general implications of the theory for competition policy and illustrate by examples its applicability to antitrust cases jel d21 d43 d82 d86 k21 l13 l40

naked exclusion with minimum share requirements we consider a class of contracts in which buyers commit to giving a seller some minimum share of their total purchases we show that such contracts can be used by an incumbent seller to reduce the probability of entry by a rival seller when the incumbent can commit to its selling price as part of the contract we further show that such contracts can be profitable for the incumbent even when exclusive dealing would not be and even when buyers can coordinate their accept or reject decisions the average price paid by the buyers will be higher and welfare will be lower whether or not the incumbent s exclusionary conduct turns out to be successful in preventing entry

the transaction costs driving captive power generation evidence from india the 2003 indian electricity act incentivizes captive power production through open access in an attempt to harness all sources of generation yet we observe that only some firms self generate while others do not in this paper we give a transaction cost explanation for such divergent behavior using a primary survey of 107 firms from india we construct a distinct variable to measure the transaction specificity of electricity use the make or buy decision is then econometrically tested using probit model results are highly responsive to transaction specificity and the likelihood of captive power generation is positively related to it at the industrial level this explains why food and chemical firms are more likely to make their own electricity since the burden of poor grid supply is highest on smaller sized and high transaction specific firms the grid access policies need to account for firm level characteristics if government wants to incentivize captive power generation

the role of potential competition in industrial organization potential competition has been recognized as a mechanism to control the exploitation of market power at least since the work of j b clark 1902 but it was not until 50 years later that economists most notably joe bain and paolo sylos labini refocused attention on the idea with inputs from the theories of imperfect competition optimal control and dynamic games their work evolved into ever more sophisticated models of the reactions of existing competitors to the threat of new competition although the most appropriate models of competitive interaction are those which begin with a specific industry a number of theories have been proposed which attempt to develop more general conclusions my purpose in this paper is to develop an understanding of the strengths and limitations of these alternative theories by examining the available theoretical empirical and institutional knowledge rather than attempt the sisyphean task of recounting every model which relates conditions of entry and market performance i have partitioned the analysis into four major schools of thought according to their most central propositions these are the traditional model of limit pricing dynamic limit pricing the theory of contestable markets and the market efficiency model traditional limit pricing models rest on the assumption that firms respond to entry but are able to earn persistent profits when the structural characteristics of markets make entry difficult dynamic limit pricing is similar but emphasizes that markets can only be temporarily protected from entry contestability theory in its pure form asserts that potential competition is as effective as actual competition in controlling market performance the efficient markets hypothesis broadly interpreted states that markets are workably competitive and that the market structure reflects differential efficiency not strategic behavior while one can construct many other hypotheses about potential competition these classifications

exclusive dealing as a barrier to entry evidence from automobiles exclusive dealing contracts between manufacturers and retailers force new entrants to set up their own costly dealer networks to enter the market we ask whether such contracts may act as an entry barrier and provide an empirical analysis of the european car market we first estimate a demand model with product and spatial differentiation and quantify consumers valuations for dealer proximity and dealer exclusivity we then perform policy counterfactuals to assess the profit incentives and possible entry deterring effects of exclusive dealing we find that there are no unilateral incentives to maintain exclusive dealing but there is a collective incentive for the industry as a whole furthermore a ban on exclusive dealing would raise the smaller entrants market share but more importantly consumers would gain not so much because of increased price competition but rather because of the increased spatial availability which compensates for the demand inefficiency from a loss of dealer exclusivity

the commitment value of contracts under dynamic renegotiation we examine why different renegotiation processes can lead to opposite results regarding the commitment value of third party contracts in the presence of asymmetric information our main result is that a contract loses all strategic value if renegotiation is allowed during the production stage rather than only before production begins this result casts serious doubt on the relevance of previous findings which emphasize how contracts can have commitment value even in the presence of renegotiation our analysis can also be used to understand the differences between many of the results in the renegotiation literature

extracting interaction created surplus abstract this paper demonstrates that the economic surplus which agents produce in bilateral interactions is extractable by an outside party having sufficient initial resources the third party achieves this outcome using a class of exclusive interaction contracts a basic extractability result is shown to be robust to several extensions competition among outside parties multiplicity of interacting agents and a dynamic extension with repeated opportunities to interact finally some connections with the economic intermediation literature are drawn journal of economic literature classification number c79

inventorship and authorship as attribution rights an enquiry into the economics of scientific credit abstract authorship and inventorship are attribution rights upon which individual scientists build their reputation and career social and legal norms concerning their distribution within research teams are currently criticized for failing to inform third parties on individual contributions we examine the case of teams engaged in the double disclosure of their research results through both publications and patents and model the negotiation process taking place between junior or female team members and the senior male ones we suggest that the former may give up inventorship in order to secure authorship even when entitled to the both based on a sample of 680 patent publication pairs related sets of patents and publications we show that very frequently one or more authors of a publication do not appear as inventors of a related patent this is less likely to happen for first and last authors which is in accordance both with our model and the prevailing legal norms on inventorship however the probability of exclusion from inventorship also declines with seniority and increases for women which is compatible with our model only

persistent court corruption levels of court corruption differ widely across the world to give just one example in a recent survey of firms in transition economies the proportion of respondents who answered that firms in their line of business never have to make additional payments to deal with the courts ranged from 86 8 in hungary to just 37 2 in albania a second notable feature of court corruption is its persistence over time in spite of almost universal condemnation of the phenomenon and frequent government anti corruption campaigns this article presents a simple model that explains both the variation and persistence of corruption the main argument is as follows a major role of the legal system is to provide incentives to individuals to take or abstain from certain actions this is true of regulation criminal law contract law and tort law alike however when courts are corrupt the incentive effect provided by court enforced fines and other penalties is reduced to maintain incentives higher penalties are required but these higher penalties in turn raise the bribes that court officials can extract since the stakes to winning a court case are now higher finally higher bribes make court employment more attractive to dishonest individuals which raises the corruptibility of the court loosely speaking then corruption and penalties are complements corruption necessitates higher penalties while higher penalties engender corruption the feedback effect just described gives rise to the possibility of multiple equilibria that is apparently similar countries can have very different levels of court corruption one country may have a relatively honest pool of court officials and a low level of penalties while a second country may have the opposite moreover if a country in a high corruption equilibrium attempts to shift to using smaller penalties the immediate effect is a fall in the incentives provided by the legal system as such a country can find itself stuck in a high corruption equilibrium

customer coalitions monopoly price discrimination and generic entry deterrence abstract this paper analyzes the interplay between a profit maximizing monopolist and a set of consumers who are able to form coalitions that bargain with the monopolist and or integrate into production we show that the monopolist will deter the formation of these countervailing coalitions through strategic selection of generic limit price offers to each consumer these limit prices are derived as subgame perfect equilibria in two alternative models of customer monopoly interplay in both models price discrimination emerges in environments wherein it has previously been considered unprofitable welfare analysis of the equilibria demonstrates the procompetitive effects of potential customer coalitions and generally provides an efficiency based motivation for a government ban on price discrimination

competition with exclusive contracts and market share discounts we analyze firms that compete by means of exclusive contracts and market share discounts conditional on the seller s share of customers total purchases with incomplete information about demand firms have a unilateral incentive to use these contractual arrangements to better extract buyers informational rents however exclusive contracts intensify competition thus reducing prices and profits and in all pareto undominated equilibria increasing welfare market share discounts by contrast produce a double marginalization effect that leads to higher prices and harms buyers we discuss the implications of these results for competition policy jel d43 d83 d86 k21 l14 l42 in this paper we study firms that compete by means of exclusive contracts or mar ket share discounts i e discounts that depend on the seller s share of a customer s total purchases these are common yet seldom studied forms of competition the literature has mainly focused on incumbents use of exclusive contracts or marketshare discounts to deter new entrants whilst paying less attention to competitors deploying similar pricing strategies we show that exclusive contracts intensify competition reducing equilibrium prices whereas market share discounts have a double marginalization effect and hence result in higher prices these findings have a bearing on the current lively policy debate 1 fueled by the fact that antitrust authorities view competition by means of exclusive contracts or marketshare discounts with some suspicion to say the least the authorities main concern appears to be that a dominant firm can use exclusivity or market share discounts to eliminate not only potential competitors but also existing ones a prime instance of this is the case of intel intel whose main competitor amd has been operating for years in the microchip sector offered electronics manufacturers discounts that depended on their buying a minimum share of their total purchases of microchips from intel some customers to qualify for the discount had to opt for an exclusive supply contract that

exclusive dealing before bork and beyond abstractantitrust scholars have come to accept the basic ideas about exclusive dealing that bork articulated in the antitrust paradox indeed they have even extended his list of reasons why exclusive dealing can promote economic efficiency yet they have also taken up his challenge to explain when exclusive dealing might possibly cause harm and have modeled a variety of special cases where it does some albeit not all of these are sufficiently plausible to be useful to prosecutors and judges

concentration in the european electricity industry the internal market as solution abstract this article offers an analysis of the present competitive and regulatory framework of the european electricity sector and the results achieved with the liberalisation process considering the reactions of incumbents to the liberalisation the focus in this work is mainly on the problem of market concentration in the sector the new trends toward the creation of national champions as well as recent mergers between gas suppliers and electricity producers raise serious concerns about abuses of market power and risk of future collusion in particular the strategic linkage of existing markets and the expansion into new ones are analyzed in the light of the multimarket contact theory considering investment in interconnection among member states the internal market issue is investigated as a solution to the risks coming from liberalisation

on the economic efficiency of liquidated damages abstract recently aghion and bolton american economic review 1987 77 388 401 have shown that liquidated damages can serve as a barrier to entry and may therefore be socially harmful in this paper i show that liquidated damages remain excessive and continue to serve as a barrier to entry even in the presence of relationship specific investment but may nevertheless have an overall positive effect on welfare

upfront payments and exclusion in downstream markets although upfront payments are often observed in contracts between manufacturers and retailers little is known about their competitive effects or the role retailers play in securing them in this article we consider a model in which two competing retailers make take it or leave it offers to a common manufacturer we find that upfront payments are a feature of equilibrium contracts and in all equilibria only one retailer buys from the manufacturer these findings support the claims of small manufacturers who argue that they are often unable to obtain widespread distribution for their products because of upfront payments copyright 2007 rand

exclusive contracts foster relationship specific investment exclusive contracts prohibit one or both parties from trading with anyone else contrary to earlier findings we show that investments that are specific to the contracting parties may be encouraged by exclusivity results depend on the nature of investments and the bargaining solution the major part of the analysis shows that exclusivity deals designed to assure the supply of essential inputs promote investment infinite penalties for breach even if ex post renegotiable may result in excessive investment in which case a positive but finite damage payment yields the first best outcome

upgrades switching costs and the leverage theory of tying this article investigates the role of product upgrades and consumer switching costs in the tying of complementary products previous analyses have found that a monopolist of one product will not increase its profits and reduce social welfare by tying and leveraging its monopoly position into a complementary market if the initial monopolised product is essential where essential means that all uses of the complementary good require the initial monopolised product we show that this is not true in settings characterised by product upgrades and consumer switching costs we also discuss various extensions including the role of the reversibility of tying

the rise of economics in competition policy a canadian perspective competition policy in canada and elsewhere has changed remarkably over the last 50 yearsin large measure due to advances in economics in this article we trace the impact of developments in industrial organization on the three central areas of competition policy cartels single firm conduct and mergers we focus on canadian competition policy but draw comparisons with developments in the united states and europe

strategic effects of three part tariffs under oligopoly the distinct element of a three part tariff 3pt compared with linear pricing lp or a two part tariff is its quantity target within which the marginal price is zero this quantity target instrument enriches the firm s strategy set in dictating the competition to a specific level even in the absence of a usual price discrimination motive with general differentiated linear demands the competitive effect of a 3pt in contrast to lp depends on the degree of substitutability between products competition is intensified when two products are more differentiated yet softened when two products are more substitutable

evaluating and improving garch based volatility forecasts with range based estimators this article investigates the feasibility of using range based estimators to evaluate and improve generalized autoregressive conditional heteroscedasticity garch based volatility forecasts due to their computational simplicity and readily availability the empirical results show that daily range based estimators are sound alternatives for true volatility proxies when using superior predictive ability spa test of hansen 2005 to assess garch based volatility forecasts in addition the inclusion of the range based estimator of garman and klass 1980 can significantly improve the forecasting performance of garch t model

endogenous games and mechanisms side payments among players we characterize the outcomes of games when players may make binding offers of strategy contingent side payments before the game is played this does not always lead to efficient outcomes despite complete information and costless contracting the characterizations are illustrated in a series of examples including voluntary contribution public good games cournot and bertrand oligopoly principal agent problems and commons games among others

the role of exclusive contracts in facilitating market transactions vertical contracts between a buyer and a seller often contain exclusivity provisions that restrict their ability to transact with third parties in the future in this paper we develop a matching model in which matched agents first decide whether or not to adopt exclusivity provisions and then bargain over the price of a good in the presence of private information we show that by making disagreement more costly exclusivity provisions reduce the risk of inefficient bargaining breakdowns and that agents find it optimal to adopt exclusive contracts in thin markets but not in thick markets for intermediate levels of market thickness all agents matched and unmatched would be better off if courts did not enforce the exclusivity provisions

the timing of mergers along the production chain capital structure and risk dynamics abstract i demonstrate that the timing of vertical mergers is generally dependent on industry characteristics my predictions are consistent with empirically observed patterns of vertical mergers i show that merger activity during economic upturns tends to be motivated by operating efficiencies while merger activity during economic downturns tends to occur as a means of keeping production chain operational mergers allow firms to capture synergies and improve efficiencies in order to survive economic contractions the pricing framework implies that a vertical merger decision usually reduces risk during two different economic states

eliminating the market for secondhand goods an alternative explanation for leasing there are a number of prominent specific instances in which a durable goods manufacturer with significant market power employed a lease only policy i united shoe in the market for shoe machinery ii ibm in the market for computers and iii xerox in the market for copiers the obvious question that arises is why would such a firm prefer leasing over selling in this article i argue that one role of the lease only policy was to eliminate the market for secondhand goods the article formally demonstrates the argument discusses the relationship between this article and earlier literature on secondhand markets and discusses the implications for antitrust policy

buyer power and intrabrand coordination we analyze the competitive effects of vertical contracts in a contracting situation where rival retailers offer contracts to a manufacturer in contrast to bernheim and whinston 1998 who study the situation in which competing manufacturers offer contracts to a common retailer we find that two part tariffs even if contingent on exclusivity or not do not suffice to implement the monopolyoutcome richer arrangements including e g conditional fixed fees and upfront payments are thus required to internalize all contracting externalities the welfare implications are ambiguous on the one hand richer contracts ensure that no efficient retailer is excluded on the other hand they allow firms to maintain monopoly prices despite intrabrand competition simulations suggest that the latter effect may be more significant

career concerns matching and optimal disclosure policy raiders may suffer from information disadvantage since the current employer is often better informed about his workers quality when workers have career concerns and matching influences productivity the initial employer can strategically disclose information to influence incentives and matching efficiency long term complete contracts induce full disclosure when raiders are perfectly competitive the optimal short term contract induces full disclosure if raiders are perfectly competitive and the workers are risk neutral and are not liquidity constrained these conditions are not only sufficient but also almost necessary for full disclosure partial disclosure may be optimal if any of these conditions is relaxed

an energy pricing scheme for the diffusion of decentralized renewable technology investment in developing countries the purpose of this paper is to investigate price support for market penetration of renewable energy in developing nations through a decentralized supply process we integrate the new decentralized energy support renewable premium tariff to analyze impacts of tariff incentives on the diffusion of renewable technology in senegal based on photovoltaic and wind technologies and an assessment of renewable energy resources in senegal an optimization technique is combined with a cash flow analysis to investigate investment decisions in renewable energy sector our findings indicate that this support mechanism could strengthen the sustainable deployment of renewable energy in remote areas of senegal although different payoffs emerged profits associated with a renewable premium tariff are the highest among the set of existing payoffs moreover in analyzing impacts of price incentives on social welfare we show that price tariffing schemes must be strategically scrutinized in order to minimize welfare loss associated with price incentives finally we argue that a sustainable promotion of incentive mechanisms supporting deployment of renewable technology in developing nations should be carried out under reliable institutional structures the additional advantage of the proposed methodology is its ability to integrate different stakeholders producers investors and consumers in the planning process

incentives for conservation and quality improvement by public utilities the author examines the design of incentive programs to motivate regulated utilities to supply both basic service e g electricity supply local telephone service and service enhancements e g energy conservation services improved clarity and speed of voice communication the optimal regulatory programs are shown to vary greatly depending upon the information available to the regulator the price of the basic service may optimally be distorted above or below marginal cost to better motivate the supply of the service enhancement policy prescriptions are compared with current programs and proposals to promote energy conservation 35 refs 2 figs

exclusionary pricing in markets with interdependent demands in this paper i use a simple model to study the competitive effects of exclusionary pricing involving two markets related by a positive demand externality it is shown that below cost pricing on one of these markets can allow an incumbent firm to exclude from both markets a more efficient rival which does not have a customer base yet however when exclusion occurs it is always socially optimal in addition under some circumstances there is inefficient entry the entrant wins both markets while the social optimum would require the incumbent to win them