Twelve sets, proposed as social choice solution concepts, are compared: the core, five versions of the uncovered set, two versions of the minimal weakly stable sets, the uncaptured set, the untrapped set, the minimal undominated set (strong top cycle) and the minimal dominant set (weak top...

In this paper an attempt has been taken to describe various types of voting system and manipulation of them. French philosophers Marquis de Condorcet (1743-1794) and Jeans-Charles Borda (1733-1799) introduced modern voting system. Duncan Black first introduced the manipulation of voting in 1958...

This paper deals with approval voting and its critical strategy profile. Approval voting is a single winner voting system used for multi-candidate elections. In this method each voter may vote for as many of the candidates as she wishes that is the voter votes for all candidates of whom the...