In this note, we argue that in Common Agency games the restriction todeterministic menus is critical. We give an simple example, with complete information and no moral hazard,where an equilibrium is not robust to the introduction of stochastic menus.

In this note, we argue that in Common Agency games the restriction todeterministic menus is critical. We give an simple example, with complete information and no moral hazard,where an equilibrium is not robust to the introduction of stochastic menus.