We study the optimal procurement mechanism when contract breach and abandoning a project may be efficient, either because of completion costs higher than anticipated or because of new and more lucrative opportunities for the contractor. When contractors have private information about their...

The paper studies, in a repeated interaction setting, how the presence of cooperative agents in a heterogeneous community organized in groups affects efficiency and group stability. The paper expands on existing literature by assuming that each type can profitably mimic other types. It is shown...

The authors discuss the concept of 'team human capital' and study the renegotiation of labor compensation after team members privately observe their own reservation wage. As labor productivity can only be high if the number of quits does not exceed a threshold, decisions concerning acceptance of...

A large population plays a two-period sequential common agency game. Agents are long lived, while principals are short lived. Preferences and technology are additively separable in time and time independent. At the onset, agents are matched in pairs under private information of individual types....