Endogenous Timing in General Rent-Seeking and Conflict Models

This paper examines simultaneous versus sequential choice of effort in a two player contest with a general contest success function. The timing of moves, determined in a pre-play stage prior to the contest-subgame, as well as the value of the prize is allowed to be endogenous. Contrary to endogenous timing models with an exogenously fixed prize the present paper finds the following. (1) Players may decide to choose their effort simultaneously in the subgame perfect equilibrium (SPE) of the extended game. (2) The SPE does not need to be unique, (3) in particular, there is no unique SPE with sequential moves if costs of effort are exclusively endogenously determined. (4) If the unique SPE is sequential play, the win probability in the NE is in no way crucial for the determination of an endogenous leadership. (5) Finally, symmetry among players does not rule out incentives for precommitment to effort locally away from the Nash-Cournot level.Contests, Endogenous timing, Endogenous prize

Endogenous Timing in General Rent‐Seeking and Conflict Models

This paper examines simultaneous versus sequential choice of effort in a twoplayer contest with a general contest success function. The timing of moves, determined in a pre‐play stage prior to the contest‐subgame, as well as the value of the prize is allowed to be endogenous. Contrary to endogenous timing models with an exogenously fixed prize the present paper finds the following. (1) Players may decide to choose their effort simultaneously in the subgame perfect equilibrium (SPE) of the extended game, (2) the SPE does not need to be unique, (3) in particular, there is no unique SPE with sequential moves if costs of effort are exclusively endogenously determined, (4) if the unique SPE is sequential play, the win probability in the NE is in no way crucial for the determination of an endogenous leadership, (5) and symmetry among players does not rule out incentives for precommitment to effort locally away from the Nash‐Cournot levelContests, Endogenous timing, Endogenous prize

Simultaneous inter- and intra-group conflicts

Lecture on the first SFB/TR 15 meeting, Gummersbach, July, 18 - 20, 2004This paper models the trade-off between production and appropriation in the presence of simultaneous inter- and intra-group conflicts. The model exhibits a ‘group cohesion effect ’: if the contest between the groups becomes more decisive, or contractual incompleteness between groups becomes more serious, the players devote fewer resources to the intra-group conflict. Moreover, there is also a ‘reversed group cohesion effect’: if the intra-group contests become less decisive, or contractual incompleteness within groups becomes less serious, the players devote more resources to the inter-group contest. The model also sheds new light on normative questions. I derive exact conditions for when dividing individuals in more groups leads to more productive and less appropriative activities. Further, I show that there is an optimal size of the organization which is determined by a trade-off between increasing returns to scale in production and increasing costs of appropriative activities

Political Culture and Monopoly Price Determination

In this paper we study the endogenous determination of monopoly price. Our proposed game of endogenous monopoly-price setting extends the literature on monopoly-price, monopoly rent-seeking contests and monopoly rent-seeking rent-avoidance contests by (i) determining the monopoly price such that it maximizes a composite utility function that depends on two components: expected social welfare and lobbying efforts. The welfare component has a positive or no effect on the utility while the lobbying efforts have a positive, negative or no effect on the utility (ii) introducing the political culture of the government and clarifying its role in the endogenous determination of monopoly price. In the proposed model the single parameter representing political culture is the weight assigned to the enhancement of social welfare. Our main concern is with the study of the relationship between this parameter and the proposed monopoly price and, in turn, the rent-seeking rent-avoidance efforts of the potential monopoly and the consumers and their aggregate expected benefit.

A theory of civil conflict and democracy in rentier states

The effects of resource rents on the political equilibrium have been studied in two main types of models. The first tradition employs models of conflict, and studies how resource rents affect the intensity and duration of civil conflict. The second tradition employs political economy models, where resource rents affect the political equilibrium because the costs and benefits of buying votes change. Although providing much insight, a primary disadvantage of these two model traditions is that they have little to say about when democracy emerges, and about when conflict emerges. This question is simply determined by the type of model one chooses to study. Yet an important empirical literature suggests that a main effect of resource rents may be exactly that it affects the political choice between democracy and civil conflict. In this paper, by integrating the earlier model traditions, we suggest the simplest possible framework we can think of to study this choice. The institutional outcome in our theory is consequently endogenous. We show how factors such as resource rents, the extent of electoral competition, and productivity affect economic and political equilibria, and discuss how our approach, mechanisms and results differ from the earlier theories.Political economy; Resource curse; Endogenous democratic institutions

Simultaneous inter- and intra-group conflicts

This paper models the trade-off between production and appropriation in the presence of simultaneous inter- and intra-group conflicts. The model exhibits a 'group cohesion effect': if the contest between the groups becomes more decisive, or contractual incompleteness between groups becomes more serious, the players devote fewer resources to the intra-group conflict. Moreover, there is also a 'reversed group cohesion effect': if the intra-group contests become less decisive, or contractual incompleteness within groups becomes less serious, the players devote more resources to the inter-group contest. The model also sheds new light on normative questions. I derive exact conditions for when dividing individuals in more groups leads to more productive and less appropriative activities. Furthermore, I show that there is an optimal size of the organization which is determined by a trade-off between increasing returns to scale in production and increasing costs of appropriative activities. -- Dieser Aufsatz modelliert den Trade-Off zwischen Produktion und Aneignung in Situationen, die sowohl von Konflikten innerhalb von Gruppen, als auch von Konflikten zwischen den Gruppen gekennzeichnet sind. Das Modell beleuchtet einen Gruppen-Kohäsions-Effekt: Wenn der Wettkampf zwischen Gruppen schärfer wird, oder Probleme unvollständiger Verträge zwischen Gruppen zunehmen, dann wenden die Spieler weniger Ressourcen in den internen Konflikten auf. Außerdem gibt es auch einen umgekehrten Gruppen-Kohäsions- Effekt: Werden die Wettkämpfe innerhalb der Gruppen weniger scharf, oder Probleme unvollständiger Verträge innerhalb der Gruppen weniger gravierend, dann verwenden die Spieler mehr Energie auf den Wettkampf zwischen den Gruppen. Der Aufsatz wirft auch ein neues Licht auf normative Fragen der optimalen Gestaltung von Organisationen. Ich leite eine exakte Bedingung her, unter der eine Aufteilung der Individuen in mehr Gruppen zu mehr produktiven Anstrengungen und weniger Aneignungsaktivitäten führt. Außerdem zeige ich, dass es eine optimale Größe von Organisationen gibt, die durch simultane interund intra- Gruppen Konflikte gekennzeichnet sind. Die optimale Größe bestimmt sich durch einen Trade-Off zwischen steigenden Skalenerträgen in der Produktion einerseits und zunehmenden Aneignungsaktivitäten andererseits.Conflict,rent-seeking,federalism,hierarchy

Are Inequality and Trade Liberalization Influences on Growth and Poverty?

Trade, Inequality, Growth, Poverty, Developing countries

Side-Payments and the Costs of Conflict.

Conflict and competition often impose costs on both winners and losers, and conflicting parties may prefer to resolve the dispute before it occurs. The equilibrium of a conflict game with side-payments predicts that with binding offers, proposers make and responders accept side-payments, generating settlements that strongly favor proposers. When side-payments are non-binding, proposers offer nothing and conflicts always arise. Laboratory experiments confirm that binding side-payments reduce conflicts. However, 30% of responders reject binding offers, and offers are more egalitarian than predicted. Surprisingly, non-binding side-payments also improve efficiency, although less than binding. With binding side-payments, 87% of efficiency gains come from avoided conflicts. However, with non-binding side-payments, only 39% of gains come from avoided conflicts and 61% from reduced conflict expenditures.contests, conflict resolution, side-payments, experiments

Bargaining Versus Fighting

I examine the determinants of conflict and settlement by embedding probabilistic contests in a bargaining framework. Different costly enforcement efforts (e.g., arming, litigation expenditures) induce different disagreement points and Pareto frontiers. After examining the incentives for settlement, I demonstrate how different division rules and bargaining norms have real, economic effects. I then analyze some sources of conflict. I emphasize long-term, strategic considerations by examining an illustrative model and discussing particular historical examples.Conflict; Negotiation; War; Settlement; Arming; Litigation