Harry Kleyer
Abstract
This paper studies imperfect competition in general equilibrium when households and firms choose price-contingent schedules. Market clearing selects the price generated by those schedules, and each agent accounts for how its own behavior changes equilibrium prices. We derive household and firm optimality conditions, establish existence and a trembling-hand refinement, and apply the framework to monopoly, vertical market power, entry, ownership, and technological change. The results show that endogenous price responses can change standard conclusions about markups, deadweight loss, firm creation, and investment.