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Helping And Sabotaging In Tournaments

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Author Info
MATTHIAS KRÄKEL () (BWL II, University of Bonn, Adenaueralle 24-42, D-53113 Bonn, Germany)

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Abstract

A two-stage, two-person tournament is discussed, in which each player can influence the other one at the first stage by choosing help, sabotage or no action. At the second stage, the players choose effort to win the tournament. Helping and sabotaging have two effects — they influence the likelihood of winning (likelihood effect) and they determine the equilibrium efforts and, therefore, effort costs (cost effect). Depending on the interplay of the two effects, diverse types of equilibria are possible. In particular, if the cost effect dominates the likelihood effect (i.e., both players concentrate on minimizing effort costs), two asymmetric equilibria will coexist in which one player helps his opponent, whereas the other one chooses sabotage and vice versa.

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Publisher Info
Article provided by World Scientific Publishing Co. Pte. Ltd. in its journal International Game Theory Review.

Volume (Year): 07 (2005)
Issue (Month): 02 ()
Pages: 211-228
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Handle: RePEc:wsi:igtrxx:v:07:y:2005:i:02:p:211-228

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Related research
Keywords: Cost effect; likelihood effect; tournament; JEL classification code: J31; JEL classification code: J33; JEL classification code: M5;

Find related papers by JEL classification:
B4 - Schools of Economic Thought and Methodology - - Economic Methodology
C0 - Mathematical and Quantitative Methods - - General
C6 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming
C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory
D5 - Microeconomics - - General Equilibrium and Disequilibrium
D7 - Microeconomics - - Analysis of Collective Decision-Making
M2 - Business Administration and Business Economics; Marketing; Accounting - - Business Economics

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  1. Raphaël Soubeyran, 2009. "Contest with attack and defense: does negative campaigning increase or decrease voter turnout?," Social Choice and Welfare, Springer, vol. 32(3), pages 337-353, March. [Downloadable!] (restricted)
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