Personal decisions about health hazards are the main cause of impaired health and premature death. People smoke and eat too much and exercise too little. The lack of preventive efforts is surprising given their proven effectiveness. Arrow's (1963) classical paper suggested that moral hazard...

This paper studies the effect of increased risk aversion on self-insurance and self-protection in a two-period expected utility framework in which the risk-reducing investment precedes its effect. In contrast to monoperiodic models, self-insurance and self-protection react very similarly to an...