The voting situations at which the Borda rule or the Copeland method can be manipulated by a single voter or a coalition of voters in three-alternative elections are characterized. From these characterizations, we derive (when possible) some analytical representations measuring the vulnerability...

L’analyse théorique de la vulnérabilité des règles de vote aux comportements stratégiques montre que le caractère plus ou moins manipulable d’une règle dépend du concept d’équilibre auquel on se réfère. Une question cruciale est de savoir si l’on doit ou non tenir compte des...

Theoretical analysis of the voting rules susceptibility to strategic manipulation suggests that the choice of the best rule (the less vulnerable to manipulation) is closely related to the underlying notion of equilibrium that is used. A crucial question is to know whether or not the possibility...

[eng] Competition between jurisdictions occurs when there exists a mobile tax base in the economy (most of the time a fixed amount of capital) and has recently been a matter of interest in economic theory. Two different approaches can be distin­guished in this literature, depending on the...