Suppose that the insurance market is competitive with free entry and exit. Competitive forces therefore lead insurers to sell insurance at the actuarially fair price. How many people buy insurance? What is the consumer surplus for the 250 people who are more risk-averse? What is it for the 250 people who are less risk-averse? What are insurers’ expected profits?

Airline companies are interested in the consistency of the number of babies on each flight, so that they have adequate safety equipment. suppose an airline conducts a survey. over weekend, it surveys 6 flights from boston to salt lake city to determine the number of babies on the flights. it determines the amount of safety equipment needed by the result of that study.