Limited Liability and Imperfect Information—On the Existence of Safety Equilibria Under Products Liability Law

In the literature on the economics of tort law the Cournot-Nash equilibrium concept has been undisputed. In particular, the existence of a Cournot-Nash safety equilibrium has been taken for granted, given the usual convexity assumptions. In this paper a simple model of strict liability with the defence of contributory negligence is considered. Liability is assumed to be limited. It is shown that for a certain range of liability limits no Cournot-Nash safety equilibrium in pure strategies exists. A mixed strategy equilibrium exists but it turns out to be suboptimal.