Acoase solution to a problem of externality insures ensures that a socially efficient outcome is to: 1)internalize the externality through taxes2)internalize the externality through subsidies3)maximize the joint welfare, irrespective of the right of ownership. 4)stop production if there is any externality.5)invite other private partners to share the burden of externality.

Kendra knight took part in a friendly game of touch football. she had played before and was familiar with football. michael jewett was on her team. in the course of play, michael bumped into kendra and knocked her to the ground. he stepped on her hand, causing injury to a little finger that later required its amputation. she sued michael for damages. he defended on the ground that she had assumed the risk. kendra claimed that assumption of risk could not be raised as a defense because the state legislature had adopted the standard of comparative negligence. what happens if contributory negligence applies? what happens if the defense of comparative negligence applies?