Task Assignment under Agent Loss Aversion

We analyze a simple task-assignment model in which a principal assigns a task to one of two agents depending on the state. If the agents have standard concave utility, the principal assigns the task to an agent with the highest productivity in each state. In contrast, if the agents are loss averse, in order to alleviate their expected losses the principal may assign the task to a single agent in all states. Furthermore, the optimal contract may specify the same effort level across states. Our results imply that such simple contracts can be optimal even when employers can write contingent contracts at no cost.