Shavell (1980) established that all existing tort regimes fail to incentivize optimal activity levels. The bearer of residual loss adopts a socially optimal activity level, however the non-bearer of residual loss will adopt an excessive level of activity. In this paper, we explore alternative...

Comparative causation is the only tort regime that allows parties to share an accident loss in equilibrium. The sharing of an accident loss between a nonnegligent injurer and his nonnegligent victim spreads activity level and R&D incentives between prospective tortfeasors and their victims. This...