Law and Economics-Charles W. Upton A Model of Joint Action
We see that both victim and injurer must have incentives to avoid an accident. Hence we model their joint action.
A Model of Joint Action
Units of Accident Prevention by Victim Units of Accident Prevention by Injurer
A Model of Joint Action Cost per unit of Accident Prevention by Victim Cost per unit of Accident Prevention by Injurer
A Model of Joint Action Probability of an Accident
A Model of Joint Action Cost of an Accident
A Model of Joint Action Optimization
A Model of Joint Action Optimization The Cost of an Hour
A Model of Joint Action Optimization Decreased probability of an accident x the cost of an accident
A Model of Joint Action Optimization Spend time and money on accident prevention until the MC exactly equals the MB.
A Model of Joint Action The Problem Neither the rule of strict liability nor the rule of no liability gives both victim and injurer the incentive to avoid an accident
A Model of Joint Action Rule of no Liability Injurer’s Objective Function
A Model of Joint Action Rule of no Liability Injurer’s Objective Function The Right Solution
A Model of Joint Action Rule of no Liability Potential injurer has no incentives to be careful
A Model of Joint Action Rule of Strict Liability Victim’s Objective Function
A Model of Joint Action Rule of Strict Liability Victim’s Objective Function The Right Solution
A Model of Joint Action Rule of Strict Liability Potential victim has no incentives to be careful
A Model of Joint Action There is a Problem Fortunately there is a way around this difficulty. Negligence rules.
A Model of Joint Action End ©2004 Charles W. Upton