Ben-Porath, Elchanan; Lipman, Barton L. - In: Journal of Economic Theory 147 (2012) 5, pp. 1689-1724
We extend implementation theory by allowing the social choice function to depend on more than just the preferences of … is necessary for the implementation of a social choice function f when the preferences of the agents are state … independent and sufficient for implementation for any preferences (including state dependent) with at least three agents if the …