A Principal-Agent model in which the principal and the agent are ambiguity averse is examined. A novel role for the optimal contract is to induce a speci c partition of the state space for the agent as a means of manipulating the ambiguity he faces, thereby providing more efficient contracting....

The introduction of deal types for issues of seasoned equity in which the offer follows quickly after the announcement highlights the role of underwriter certification in the performance of SEOs. Controlling for the matching between underwriters and issuing firms, we find that the quality of the...