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...

Probability weighting is often used to explain insurance choices that conflict with expected utility (EU) preferences. We derive new theoretical results on the effects of probability weighting in the context of common insurance demand puzzles. We identify decreasing relative overweighting (DRO)...