We characterize all preference profiles at which the approval (voting) rule is manipulable, under three extensions of preferences to sets of alternatives: by comparison of worstalternatives, best alternatives, or by comparison based on stochastic dominance. We perform a similar exercise for...

We characterize all preference profiles at which the approval (voting) rule is manipulable, under three extensions of preferences to sets of alternatives: by comparison of worstalternatives, best alternatives, or by comparison based on stochastic dominance. We perform a similar exercise for...

Voting problems with a continuum of voters and finitely many alternatives are considered. The classical Arrow and Gibbard-Satterthwaite theorems are shown to persist in this model, not for single voters but for coalitions of positive size. The emphasis of the study is on strategic...

In a model with finitely many agents who have single-dipped Euclidean preferences on a disc in theEuclidean plane, a rule assigns to each profile of reported dips a point of the disc. It is provedthat any strategy-proof and Pareto optimal rule is a dictatorial. This framework models...

In a model with finitely many agents who have single-dipped Euclidean preferences on a polytope inthe Euclidean plane, a rule assigns to each profile of reported dips a point of the polytope. Asingle-best point is a point which is the unique point at maximal distance from some other pointof the...

In a single framework, I address the question of the informational basis for evaluating social states. I particularly focus on information about individual welfare, individual preferences and individual (moral) judgments, but the model is also open to any other informational input deemed...

Bureaucratie en bureaucratisering zijn verschijnselen waardoor zowel moderne overheidsorganisaties als moderne ondernemingen worden geplaagd. Aan de bureaucratische organisatievorm kleven zowel voordelen als nadelen. De nadelen ervan worden in de moderne samenleving echter steeds groter. In dit...

Perhaps, the 1990''''s will be the decade of constitution writing. With many European States gaining their independence or reshaping their contours, new constitutions will be drawn up. Recent advances in the economic analysis of law can help to make this difficult task more feasible. This essay...

Manchmal sind Privatisierungen im herkömmlichen Sinne nicht das effektivste Verfahren, um mit einen Erbe an Staatsunternehmungen zu verfahren, die den neuen wirtschaftlichen Bedingungen nicht mehr entsprechen. Dieser Beitrag greift auf einen ausgereiften Gesetzentwurf zurück, um eine...

The principle of subsidiarity has become more widely known with its prominent adoption in the Maastricht Treaty. The principle is, however, deeply embedded in the history of political economy, notably in the continental European tradition. In this tradition, it has the status of a principle in...