We study a dynamic contracting problem in which size is relevant. The agent may take on excessive risk to enhance short-term gains, which exposes the principal to large, infrequent losses. To preserve incentive compatibility, the optimal contract uses size as an instrument; there is downsizing...

Principals seek to enter into a productive relationship with agents by posting mechanisms in a market with competitive search. A mechanism includes an incentive contract if the meeting is bilateral, and an ex post bidding process, in which agents make contract offers, if several agents meet the...

We study a continuous-time contracting problem in which size plays a role. The agent may take on excessive risk to enhance short-term gains; doing so exposes the principal to large, infrequent losses. The optimal contract includes size as an instrument: downsizing along the equilibrium path may...