TY - JOUR AU - Polinsky,A. Mitchell AU - Shavell,Steven TI - Should Liability be Based on the Harm to the Victim or the Gain to the Injurer? JF - National Bureau of Economic Research Working Paper Series VL - No. 4586 PY - 1993 Y2 - December 1993 UR - http://www.nber.org/papers/w4586 L1 - http://www.nber.org/papers/w4586.pdf N1 - Author contact info: A. Mitchell Polinsky Stanford Law School Stanford University Stanford, CA 94305 Tel: 650/723-0886 Fax: 650/723-3557 E-Mail: polinsky@stanford.edu Steven Shavell Harvard Law School 1575 Massachusetts Avenue Hauser Hall 508 Cambridge, MA 02138 Tel: 617/495-3668 Fax: 617/496-2256 E-Mail: shavell@law.harvard.edu AB - Should the level of liability imposed on an injurer be based on the harm he caused or instead on the gain he obtained from engaging in the harmful act? The main point of this article is that there is a strong reason to favor liability based on harm rather than gain when account is taken of the possibility of legal error. Notably, even a small underestimate of gain can lead an injurer to commit a harmful act when the harm greatly exceeds his gain, causing a large social loss. In contrast, a comparable error in the estimate of harm will not lead an injurer to engage in the harmful act when the harm significantly exceeds his gain. The general superiority of harm-based liability is shown to hold under the rules of negligence and strict liability and regardless of whether potential injurers know the error that will be made. ER -