Experimental comparison of two multiple-stage contest designs with asymmetric players

We compare experimentally two contest designs. In the between-group design (BGD), cohorts compete with one another in stage 1 and a single cohort is then advance to stage 2. In stage 2, members of this cohort compete for a single prize. In the within-group design (WGD), the order of the competition is reversed. Our findings support the theoretical conclusion that the WGD is superior to BGD in generating more expenditure. They also show that if the cohorts are fixed, small, and interact repeatedly over time, then tacit collusion in the WGD, but not the BGD, leads to suppression of expenditures.     

Rent dissipation and efficiency in a contest with asymmetric valuations

This paper introduces contest efficiency as an alternative to rent dissipation when measuring efficiency in a contest with asymmetric valuations. Contest efficiency is defined as the expected proportion of the maximum obtainable benefit captured by the contest, and differs from rent dissipation because it values the expected winner of the contest. Therefore, rent dissipation and contest efficiency may suggest contradictory conclusions when agents have asymmetric valuations. This result is illustrated when comparing alternative equilibria in contests with asymmetric reimbursement and when analyzing the comparative static effect of a change in the relative benefit of two agents in a Cournot-Nash contest.     

Activity and inactivity in a rent-seeking contest with private information

We consider a rent-seeking contest in which one player has private information about his own valuation of the prize. This valuation may be either high or low. All other players have a known and identical valuation of the prize. We present necessary and sufficient conditions under which the privately informed player exerts a positive or zero equilibrium effort.     

Lobbying and asymmetric information

Informational lobbying — the use by interest groups of their (alleged) expertise or private information on matters of importance for policymakers in an attempt to persuade them to implement particular policies — is often regarded as an important means of influence. This paper analyzes this phenomenon in a game setting. On the one hand, the interest group is assumed to have private information which is relevant to the policymaker, whilst, on the other hand, the policymaker is assumed to be fully aware of the strategic incentives of the interest group to (mis)report or conceal its private information. It is shown that in a setting of partially conflicting interests a rationale for informational lobbying can only exist if messages bear a cost to the interest group and if the group's preferences carry information in the ‘right direction’. Furthermore, it is shown that it is not the content of the message as such, but rather the characteristics of the interest group that induces potential changes in the policymaker's behavior. In addition, the model reveals some interesting results on the relation between, on the one hand, the occurrence and impact of lobbying and, on the other hand, the cost of lobbying, the stake which an interest group has in persuading the policymaker, the similarity between the policymaker's and the group's preferences, and the initial beliefs of the policymaker. Moreover, we relate the results to some empirical findings on lobbying. qu]Much of the pressure placed upon government and its agencies takes the form of freely provided “objective” studies showing the important outcomes to be expected from the enactment of particular policies (Bartlett, 1973: 133, his quotation marks). qu]The analysis here is vague. What is needed is an equilibrium model in which lobbying activities have influence. Incomplete information ought to be the key to building such a model that would explain why lobbying occurs (information, collusion with decision makers, and so on) and whether lobbying expenses are socially wasteful. (Tirole, 1989: Ch. 1.3, p. 77, Rentseeking behavior).     

Tullock's rent-seeking contest with a minimum expenditure requirement

We consider a rent-seeking contest of the kind introduced by Tullock (1980) in which two players compete for a monopoly rent. We extend the contest by requiring that if a player puts forward an effort, his expenditures must be larger than or equal to some minimum level. We show that, depending on the model parameters, the number of Nash equilibria of the extended model can be zero, one, two or four. Furthermore, it turns out that the extent of rent dissipation in a Nash equilibrium of the extended model can be larger than, equal to, or smaller than the extent of rent dissipation in the unique Nash equilibrium of the original model.     

Delegation with multiple instruments in a rent-seeking contest

We consider delegation in a rent-seeking contest with two players, where delegates have more instruments at their disposal than the main players. We endogenize both the decision to hire a delegate and the contingent fee offered to the delegates. We characterize the situations when either no, one or two players hire a delegate in equilibrium. We show that the decision to hire a delegate depends in a non-monotonic way on the size of the contested prize.     

A contest success function with a tractable noise parameter

I propose a simple contest success function which is a variant of the Tullock probability function under certain conditions. It relaxes two features of the Tullock probability function. I show that this contest success function could be used to obtain interesting results and is more tractable than Tullock's function in certain cases. In particular, researchers who are interested in examining the degree to which luck as opposed to effort affects behavior in different contest settings might find it easier to use this contest success function than the Tullock success function. Unlike the Tullock function, there always exists a pure-strategy equilibrium for all values of the parameter which captures the degree of noise. The proposed function has been used in Kolmar and Wagener (2004) with interesting results.     

Rent-seeking contest when the prize increases with aggregate efforts

The objective of this article is to investigate contests in which efforts are productive. Tullock's standard rent-seeking model is extended by making the rent itself increase with the aggregate efforts. A positive externality is thereby introduced into the contest, because a contender's private effort in quest of the rent generates a benefit for other contenders. Coupled with a negative externality presented in the standard rent-seeking model, the net effect on the social efficiency of the contest is a priori ambiguous. It is shown that the extended contest generates socially wasteful, excessive aggregate efforts.     

Rent-seeking with asymmetric valuations

This paper analyzes Tullock's rent-seeking game with asymmetric valuations for a variable range of the returns to scale parameter. A necessary and sufficient condition for a unique pure strategy Nash equilibrium is established. Equilibrium effort and expected profits are determined and subjected to comparative statics analysis. Increasing the underdog's valuation induces both players to increase their efforts. Increasing the favorite's valuation increases his effort but decreases the effort of the underdog. Expected profits increase with a player's valuation but decreases with the valuation of the competitor. The impact of the returns to scale parameter is also analyzed.     

Regulatory Errors with Endogenous Agendas

How do a regulator's decisions depend on the characteristics and strategies of its external clients? We develop a theory of approval regulation in which an uninformed regulator may veto the submission of a better‐informed firm. The firm can perform publicly observable experiments to generate product information prior to submission. We find that when experimentation is short, Type I errors (approving bad products) are more likely for products submitted by firms with lower experimentation costs (larger firms), while Type II errors (rejecting good products) should be concentrated among smaller firms. These comparative statics are reversed when experimentation is long. We perform a statistical analysis on FDA approvals of new pharmaceutical products using two different measures of Type I error. We find consistent support for the counterintuitive hypothesis that, under particular conditions, errors are decreasing in the size of the firm submitting the product.     

Efficient Influence Activities with Endogenous Rent

This paper analyzes the effects of influenceactivities on organizational efficiency ina principal-agent framework with endogenousrent. It shows that, with endogenousrent, influence activities canimprove efficiency even if theirinformative value is low. Effects on thedissipation rate of rent are alsoconsidered. In particular, it is shownthat, with endogenous rent, more powerfulincentives on influence activities only increasethe dissipation rate when the sum ofthe elasticities of the influence costsfunction and of the production function isgreater than one.     

Party Platforms with Endogenous Party Membership

This paper proposes and analyzes a model of how the behaviorof voters and that of potential party activists togetherdetermine party membership and the ideological characteristicsof party platforms. Membership decisions are based onexpressive motivations, whereas platforms are chosenstrategically. Part of the ideological spectrum may remainoutside both parties because of alienation or indifference.     

Information diffusion within the electorate:: the asymmetric transmission of political–economic information

This paper examines the connection between information and expectations. Drawing upon Lazarsfeld et al.'s (Lazarsfeld, P.F., Berelson, B., Gaudet, H., 1944. The People's Choice. Duell, Sloan, and Pearce, New York) classic work on communication flows, we devise an asymmetric transmission model of expectation formation. This model assumes that the expectations of the less informed segments within the electorate are influenced by the expectations of more informed groups but that the opposite does not hold. We use educational differences as a proxy for information heterogeneity. A vector autoregression (VAR) analysis on monthly surveys of inflation expectations supports the asymmetric transmission hypothesis.     

A stochastic derivation of the ratio form of contest success functions

This note provides a distribution-based justification for the ratio form of contest success functions (CSFs), in which a player’s success depends positively on her effort relative to that of her opponents. I show that the inverse exponential distribution of the random shocks yields the ratio form. Extending this approach to asymmetric contests, I also derive an asymmetric ratio form of CSFs.     

Rent seeking and rent setting with asymmetric effectiveness of lobbying

This paper provides a more general model of the determination of rent-seeking costs by combining the following features: endogenous rent determination, asymmetric effectiveness of contending agents in their lobbying efforts, and multiple periods. In doing so, the paper generalizes some aspects of the work of Applelbaum and Katz (1987), Rogerson (1982), Leininger (1992) and Kohli (1992). Some results obtained are: (i) in the short run, when the regulator's salary is higher than in an alternative occupation, both the per unit cost of rent-seeking and the total rent set by regulator are highest for the same value of the relative effectiveness parameter; (ii) in the long run, an increase in the effectiveness parameter leads to a reduction in the social costs of rent seeking; (iii) in a repeated game, the equilibrium rent is lower the higher is the regulator's discount factor.     

Optimal Intergenerational Redistribution in a Two-Country Model with Endogenous Fertility

We analyze a model with two countries that are linked by anintegrated capital market. Fertility, and thus population growth, isendogenously determined by households. Our analysis proceeds inthree steps: First, we characterize an optimal intertemporal andinterregional allocation in a model with endogenous fertility andtwo countries. Second, we look for an institution supporting theoptimal allocation. It turns out that in general, a decentralizedequilibrium is inefficient. National public-pension systems withbenefits that are related to the number of children implements theoptimal allocation. This provides a justification for governmentinterventions beyond its role as a ``night-watchman.'' Third, weanalyze whether national governments have the right incentives toimplement the optimal system. It turns out that every nationalgovernment has an incentive to deviate from the optimal structureand to shift part of the burden to the other country. Policyimplications for the institutional arrangements within the EuropeanUnion are discussed.     

Rent-seeking with asymmetric valuations: Addition or deletion of a player

We consider an extension of Tullock's (1980) N-player contest under which prize valuations may vary across players. We show that the pure-strategy equilibrium of this contest is unique. We also establish the following results: rent dissipation increases, individual winning probabilities decrease, and individual spending either increases or decreases with the addition of a player.     

Rent-seeking contests with incomplete information

We consider rent-seeking contests with two players who each have private information about their own cost of effort. We consider both discrete and continuous distributions of costs and give results for each case, focusing on existence of equilibrium.