The Handbook of Social Choice and Welfare presents, in two volumes, essays on past and on-going work in social choice theory and welfare economics. The first volume consists of four parts. In Part 1 (Arrovian Impossibility Theorems), various aspects of Arrovian general impossibility theorems,...

The last decade has witnessed growing interest among political scientists and economists in nondemocratic politics. This trend has been reflected in increasingly rigorous game-theoretic modeling of its various aspects: regime persistence and breakdown; ruling-coalition formation and leadership...

Free and fair elections are the cornerstone of a democratic system, but elections are common in other regimes as well. Such an election might be a pure farce, with the incumbents getting close to 100% of the vote. In other instances, incumbents allow opposition candidates to be on the ballot and...

It is often argued that additional constraints on redistribution such as granting veto power to more players in society better protects property from expropriation. We use a model of multilateral bargaining to demonstrate that this intuition may be flawed. Increasing the number of veto players...

An influential thesis often associated with De Tocqueville views social mobility as a bulwark of democracy: when members of a social group expect to join the ranks of other social groups in the near future, they should have less reason to exclude these other groups from the political process. In...

In elections that take place in a less-than-perfect democracy, incumbency advantages are different from those in mature democracies. The incumbent can prevent credible challengers from running, organize vote fraud, or even physically eliminate his main opponents. At the same time, formally...

We provide a general framework for the analysis of the dynamics of institutional change (e.g., democratization, extension of political rights or repression of different groups), and how these dynamics interact with (anticipated and unanticipated) changes in the distribution of political power...