This gaper provides a theory of strikes as part of a constrained efficient
enforcement mechanism for an implicit contractual agreement. A firm possess
ing contemporaneously private information about demand engages in an enduri
ng relationship with its workforce. If the information becomes perfectly ob
servable subsequently, then, module discounting, the first-best is implemen
table, but strikes are always off the equilibrium path. If the observations
of the workforce are imperfect strikes occur in equilibrium. The dynamic c
ontracting problem is modeled as a repeated game with imperfect monitoring.
The equilibrium exhibits production inefficiency and incomplete insurance
to mitigate the inefficiencies caused by strikes.