The ex ante incentive compatible core of an exchange economy with private information is the (standard) core of a … incentive compatible core can be empty, even if utility functions are quasi-linear. If, in addition to quasi-linearity, further … assumptions are made (like independent private values), the non-emptiness of the core follows nevertheless from d?Aspremont and …

The ex ante incentive compatible core of an exchange economy with private information is the (standard) core of a … incentive compatible core can be empty, even if utility functions are quasi-linear. If, in addition to quasi-linearity, further … assumptions are made (like independent private values), the non-emptiness of the core follows nevertheless from d'Aspremont and …

members of a coalition. We then define a concept of the Core that takes into account these communication possibilities. The … internal consistency of the improvements is considered and an Internally Consistent Core is introduced, that requires …

This paper provides a noncooperative approach to core stability in an economy with incomplete information. The analysis … players, as in matching. We study the perfect Bayesian equilibria of an extensive form mechanism that extends the one used by … Serrano and Vohra (1997) to implement the core of a complete information economy. This leads to a version of the core that we …

a new hybrid solution concept, the free-riding-proof core (FRP-Core), which endogenously determines a contribution group …, public goods provision level, and how to share the provision costs. The FRP-Core is always nonempty in public goods economies … but does not usually achieve global efficiency. The FRP-Core has support from both cooperative and noncooperative games …

This paper provides a general overview of the literature on the core of an exchange economy with asymmetric information …. Incentive compatibility is emphasized in studying core concepts at the ex ante and interim stage. The analysis includes issues … of non-emptiness of the core as well as core convergence to price equilibrium allocations. …