We analyze optimal labor contracts when the worker is inequity averse towards the employer. Welfare is maximized for an equal sharing rule of surplus between the worker and the firm. That is, profit sharing is optimal even if effort is contractible. If the firm can make a take-it-or leave-it...

It is difficult to test the prediction that future career prospects create implicit effort incentives because researchers cannot randomly “assign” career prospects to economic agents. To overcome this challenge, we use data from professional soccer, where employees of the same club face...

It is difficult to test the prediction that future career prospects create implicit effort incentives because researchers cannot randomly “assign” career prospects to economic agents. To overcome this challenge, we use data from professional soccer, where employees of the same club face...

In this paper we report on a principal-agent experiment where the principal can choose whether to rely on an unenforcable bonus contract or to combine the bonus contract with a fine if the agent's effort falls below a minimum standard. We show that most principals do not use the fine and that...