We study the existence of group strategy-proof stable rules in many-to-many matching markets under responsiveness of agents' preferences. We show that when firms have acyclical preferences over workers the set of stable matchings is a singleton, and the worker-optimal stable mechanism is a...

I provide a sufficient condition for the uniqueness of equilibrium payoffs in a model of stochastic bargaining with unanimity rule and risk-averse players. My Condition (S) implies Condition (C) of Merlo and Wilson (1995) and is easy to verify in applications

We consider the problem of the fair allocation of indivisible goods and money with non-quasi-linear preferences. The purpose of the present study is to examine strategic manipulation under envy-free solutions. We show that under a certain domain-richness condition, each individual obtains the...

In ordinal (probabilistic) assignment problems, each agent reports his preference rankings over objects and receives a lottery defined over those objects. A common efficiency notion, sd-efficiency, is obtained by extending the preference rankings to preferences over lotteries by means of...

We consider house (re)allocation problems (Shapley and Scarf, 1974) with strict preferences. We are concerned with the possibility that a pair of agents may gain by swapping their endowments before the operation of the chosen rule. A rule is called endowments-swapping-proof if it is immune to...

We study the possibility of designing satisfactory ex post incentive compatible single valued direct mechanisms in interdependent values environments, characterized by the set of agents type profiles and by their induced preference profiles. For environments that we call knit and strict, only...

We consider a model in which projects are to be assigned to agents based on their preferences, and where projects have capacities, i.e., can each be assigned to a minimum and maximum number of agents. The extreme cases of our model are the social choice model (the same project is assigned to all...

We perform a laboratory test of Pledge-and-Review bargaining, implementing a simplified version of the model analysed in Harstad (2019). In theory, this institution should increase contributions to a public good only if there is uncertainty over the value of possible future payoffs. In contrast,...

Are there collective decision methods which (i) give everyone, including minorities, an equal share of effective power even if voters act strategically, (ii) promote consensus and equality, rather than polarization and inequality, and (iii) do not favour the status quo or rely too much on...

The paper starts from the hypothesis that the public good index (PGI) could be much more successful if it were introduced by a more prominent game theorist. It argues that the violation of local monotonicity, inherent to this measure of a priori voting power, can be an asset – especially if...