Athlete Endorsement Contracts: The Impact of Conventional Stars

Despite a continuing increase in the dollar value of athlete endorsement contracts and the prominence of athlete endorsements as a marketing tool, the value of endorsement contracts has gone largely unexamined. Employing event study analysis, this paper assesses the effects of endorsement contract announcements on changes in the share price of firms. In contrast to previous studies which focus on a single megastar athlete or sporting event and find significant positive returns to the firm, this study evaluates 148 endorsement announcements for conventional athletic stars in various sports and finds that the average endorsement contract has an insignificant impact on the market value of the firm. Also, there is no support of the product–endorser match-up hypotheses but endorsements by golfers do exhibit significant abnormal returns.      

Contracts with endogenous information

I study covert information acquisition and reporting in a principal agent problem allowing for general technologies of information acquisition. When posteriors satisfy two dimensional versions of the standard First Order Stochastic Dominance and Concavity/Convexity of the Distribution Function conditions, a first-order approach is justified. Under the same conditions, informativeness and riskiness of reports are equivalent. High powered contracts, that make the agent's informational rents more risky, are used to increase incentives for information acquisition, insensitive contracts are used to reduce incentives for information gathering. The value of information to the agent is always positive. The value of information to the principal is ambiguous.     

Foundations of Incomplete Contracts

In the last few years, a new area has emerged in economic theory, which goes under the heading of "incomplete contracting". However, almost since its inception, the theory has been under attack for its lack of rigorous foundations. In this paper, we evaluate some of the criticisms that have been made of the theory, in particular, those in Maskin and Tirole (1999 a ). In doing so, we develop a model that provides a rigorous foundation for the idea that contracts are incomplete.     

Courts and Relational Contracts

Post-communist countries offer new evidence on the relativeimportance of courts and relationships in enforcing contracts.Belief in the effectiveness of courts has a significant positiveeffect on the level of trust shown in new relationships betweenfirms and their customers. Well-functioning courts also encourageentrepreneurs to try out new suppliers. Courts are particularlyimportant when specific investments are needed for a relationshipto develop. While relationships can sustain existing interactions,workable courts help new interactions to start and develop.     

Unobservable Contracts as Precommitments

It is well known that signing publicly observable contracts with third parties is a means of credibly committing to certain actions and hence may yield strategic advantages. Previous work on the commitment value of unobservable contracts has been limited to normal form games and extensive form games in which only one party has the option to sign a contract. In this paper, we extend the analysis to extensive form games in which both players can sign contracts, and characterize the set of sequential equilibria. We show that any Nash equilibrium outcome of the original game in which both players receive more than their individually rational payoffs can be supported as a sequential equilibrium outcome. Therefore, delegation acts not only as a commitment device to gain advantage over the opponent, but also as a cooperative device to attain Pareto improvements over the subgame perfect equilibrium outcome. I would like to thank Atila Abdulkadiroglu, Jean-Pierre Benoit, Alberto Bisin, Boyan Jovanovic, Ehud Kalai, Giuseppe Lopomo, George Mailath, Efe Ok, Ariel Rubinstein, Andy Schotter, seminar participants at various universities and conferences, and anonymous referees for helpful comments and suggestions. Support from the Alfred P. Sloan Foundation and Program for Economic Research at Columbia University is also gratefully acknowledged.     

Auctioning Risky Conservation Contracts

Conservation auctions have the potential to increase the efficiency of payments to farmers to adopt conservation-friendly management practices by fostering competition among them. The literature considers bidders that have complete information about the costs of adoption and optimal bidding behavior reflects this information advantage. Farmers seek information rents and bids decrease when risk aversion increases because farmers are more averse to losing the auction. We contribute to the literature by allowing for cost risk. Our paper shows that farmers must balance the risk of losing the auction (thus foregoing information rent) with the risk of submitting a bid that is not high enough to pay the costs of adopting conservation practices (thus incurring losses). We design an experiment to trade off these two risks and examine how risk aversion affects bidding behavior when participants face different sources and levels of risk. Our experiment contributes to a small literature on experimental auctions with risky product valuations. We find that participants decrease their bids as risk aversion increases, even in auctions with cost risk, suggesting that the risk of losing the auction dominates. These findings uncover new challenges for the practical implementation of conservation auctions as an efficient policy instrument.     

Consumption Commitments and Employment Contracts

We examine an economy in which the cost of consuming some goods can be reduced by making commitments that reduce flexibility. We show that such consumption commitments can induce consumers with risk-neutral underlying utility functions to be risk averse over small variations in income, but sometimes to seek risk over large variations. As a result, optimal employment contracts will smooth wages conditional on being employed, but may incorporate a possibility of unemployment.     

Contracts and Productive Information Gathering

We modify a standard Baron–Myerson model by assuming that, instead of knowing the state of nature, the agent has to incur a cost γ to learn it. Under these conditions, the principal will offer contracts that, depending on the value of γ, try to induce the agent to gather or not to gather information. We study the tradeoffs that are involved.Journal of Economic LiteratureClassification Numbers: D82, D83.     

道德、信誉与合约

市场经济之初,人们体会最深,感叹最多的是道德问题和信誉问题。市场经济离不开道德和信誉,缺乏道德和信誉支持的市场经济只能是灾难经济。然而,信誉和道德有着本质区别,但日常生活中人们将它们混在一起来谈论,有时甚至是不分的,本文力图从合约的角度辨清二者之间的关系。     

Regulatory Contracts and Stakeholder Regulation

Abstract **: This paper examines the application of the concept of a regulatory contract in the analysis of UK utilities regulation. It argues that there are serious problems in conceiving of regulatory relations as analogous to contracts, though particular contracts may be a useful tool in the regulatory armoury. This is partly due to problems with principal/agent theory, which has been conceived in different ways by economists and lawyers, and partly due to the essentially political nature of regulatory relations, which make it difficult to tie down regulatory discretion in ways which resemble contractual relations. There is also ambiguity as to who is principal and who is agent, with the danger of adopting a single theoretical category for relationships which are radically different. The early legal structures adopted for UK utility regulation did have elements of a regulatory contract, but with the growth of competition and social regulation, a different model, that of a network of stakeholders, has largely replaced it. This offers the opportunity to develop more sophisticated regulatory procedures, but does not replace the need for substantive values drawn from economics but also from public service values as guides for regulatory decisions .     

Unforeseen Contingencies and Incomplete Contracts

We scrutinize the conceptual framework commonly used in the incomplete contract literature. This literature usually assumes that contractual incompleteness is due to the transaction costs of describing—or of even foreseeing—the possible states of nature in advance. We argue, however, that such transaction costs need not interfere with optimal contracting ( i.e. transaction costs need not be relevant ), provided that agents can probabilistically forecast their possible future payoffs (even if other aspects of the state of the nature cannot be forecast). In other words, all that is required for optimality is that agents be able to perform dynamic programming, an assumption always invoked by the incomplete contract literature. The foregoing optimality result holds very generally provided that parties can commit themselves not to renegotiate. Moreover, we point out that renegotiation may be hard to reconcile with a framework that otherwise presumes perfect rationality. However, even if renegotiation is allowed, the result still remains valid provided that parties are risk averse.     

Deliveries on Commodity Futures Contracts

Deliveries on futures contracts are widely thought to be relatively insignificant in amount; indeed sizeable deliveries are taken to indicate problems in a futures market. In fact, deliveries on five of the largest, physical delivery, futures markets in the US average approximately 10 per cent of the maximum open interest in each delivery month. Analysis also demonstrated the value of the timing and location options often provided by contract specifications. One implication is that measures of market performance like hedging effectiveness are sensitive to the imbedded options' effects on prices     

Endogenous Choice of Strategic Contracts in a Mixed Duopoly with Bargaining Over Managerial Delegation Contracts

We revisit the endogenous choice problem of strategic contracts for the public firm and the private firm in a managerial mixed duopoly with differentiated goods. We consider the situation wherein the managerial delegation contracts are determined by maximising social welfare within the public firm, which is equal to the objective function of its owner, and through bargaining over the content of managerial delegation contracts between the owner and manager within the private firm. We show that, in equilibrium, when the manager of the private firm has high bargaining power relative to that of the owner, the public firm chooses a price contract, while the private firm chooses a quantity contract. However, there is no equilibrium market structure under the pure strategic contract class when the manager has sufficiently low bargaining power relative to that of the owner.     

Contracts and competition: an introduction

Changes in public policy and corporate strategy have enhancedthe role of contracts as mechanisms of economic governance.The understanding that norms, standards and other forms of regulatorymechanism can affect the structure of incentives and the qualityof contractual outcomes has helped to stimulate a wider debateconcerning institutions and economic performance. Among thethemes explored in this Special Issue, which draws on the UKESRC's Contracts and Competition Programme, are the need forinterdisciplinary analysis of economic organisation; the linkbetween contracts and trust; and the complex relationship betweeninstitutional forms and economic outcomes.     

Sales Contracts and Production Uncertainty*

The paper examines production under common uncertainty where sales contracts specify penalties for under- or over-production. We locate a trade-off between high productivity and the incurrence of penalties, and identify work incentives appropriate for different cases.     

Optimal Lending Contracts and Firm Dynamics

We develop a general model of lending in the presence of endogenous borrowing constraints. Borrowing constraints arise because borrowers face limited liability and debt repayment cannot be perfectly enforced. In the model, the dynamics of debt are closely linked with the dynamics of borrowing constraints. In fact, borrowing constraints must satisfy a dynamic consistency requirement: the value of outstanding debt restricts current access to short-term capital, but is itself determined by future access to credit. This dynamic consistency is not guaranteed in models of exogenous borrowing constraints, where the ability to raise short-term capital is limited by some prespecified function of debt. We characterize the optimal default-free contract—which minimizes borrowing constraints at all histories—and derive implications for firm growth, survival, leverage and debt maturity. The model is qualitatively consistent with stylized facts on the growth and survival of firms. Comparative statics with respect to technology and default constraints are derived.     

Incentive Contracts and Environmental Performance Indicators

A principal-agent (P-A) model is used to analyse the effect of environmentaldiligence, the principal (top management), having to use imperfectperformance indicators and fearing penalties for environmental damages,wants to avoid environmental harm and induce the agent (employeemanipulating hazardous materials) to take appropriate action. To motivatethe agent, the principal offers an incentive contract based onenvironmental stewardship performance (as measured by EPI).Environmental stewardship being difficult to measure, due to high levelsof uncertainty surrounding, EPI, creates impediments to the establishmentof an efficient P-A contract.     

电信合同性质辨析

1.电信合同不同于租赁合同。有观点认为,电信合同在法律性质上属于财产租赁合同,合同标的是由线路、中继站、电源、终端可控制中心的硬件和有关软件所组成的广义通讯系统。笔者并不否认电信合同和租赁合同具有某些相似性,如两类合同的履行均以移转一定财产的使用收益权为前提。但二者仍存在很大差异。第一,合同标的不同。租赁合同的标的是现实存在的非消耗性的特定物,承租人有权根据租赁合同约定实际占有、使用和控制该租赁物。电信合同则以电信服务这一行为为其标的。电信企业提供服务既需要借助于某些有体物(如通信线路等),也需要借助于无…