We consider a multi-dimensional procurement problem in which sellers have private information about their costs and about a possible design flaw. The information about the design flaw is necessarily correlated. We solve for the optimal Bayesian procurement mechanism that implements the efficient...

We study full surplus extraction and implementation in dynamic environments. We exploit intertemporal correlations of agents' types to construct within-period ex post incentive compatible mechanisms. First, we formulate one-shot environments, in which a single agent has a hidden type and the...

The context in which a mechanism is defined and meant to operate plays an important role, and in more than one way. We advocate a contextual approach to mechanism design, that extends to both non-classical aspects of decision and of the physical and information-theoretic environment in which the...