We present a variant of a general equilibrium model with group formation to study how changes of non-consumptive benefits from group formation impact on the well-being of group members. We identify a human relations paradox: Positive externalities increase, but none of the group members gains in...

We consider a firm which pays a worker for his effort over several periods. The more the firm pays in one period, the wealthier the worker is in the following periods, and so the more he must be paid for a given effort. This wealth effect can induce an employer to pay little initially and more...