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Carraro, Carlo
Marchiori, Carmen
Year of Publication: 
Series/Report no.: 
Nota di Lavoro, Fondazione Eni Enrico Mattei 40.2003
This paper analyses issue linkage as a way to increase co-operation on issues where incentives to free-ride are strong. The goal is to determine under what conditions players prefer to link negotiations on two different issues rather than to negotiate on the two issues separately. Suppose that players are asked to vote on issue linkage before starting negotiations. Under what conditions would they vote in favour of issue linkage? The answer to this question is not trivial. Issue linkage may indeed increase the number of cooperators on the provision of a public good (a typical issue characterised by strong incentives to free-ride). However, at the same time, issue linkage may reduce the number of cooperating players on the other economic issue which is linked to the provision of a public good. Players therefore face a trade-off. This paper analyses this trade-off within a game-theoretic framework and shows under what conditions issue linkage is players' equilibrium strategy.
International environmental agreements
coalition formation games
issue linkage
Document Type: 
Working Paper

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