Question
Suppose you decide to start a new company to insure homeowners against flooding. During heavy rains, many people's basements flood, and this can cause a
Suppose you decide to start a new company to insure homeowners against flooding. During heavy rains, many people's basements flood, and this can cause a lot of damage and cost a lot of money to repair.
For simplicity, assume that:
- The average new house costs $300,000.
- The probability that any house will flood in a given year is 1.7%.
- If flooded, the average homeowner will incur $12,000 of expenses that you would reimburse.
- In addition to the cost of reimbursing the customer, should their home flood, your company also incurs an administrative cost of $50 per customer insured (regardless of if they file a claim or not.)
You do market research and discover that all homeowners break down into one of three groups based on their feelings about the risk of flooding:
- 30% are risk neutral.
- 55% are risk averse. They are willing to pay a premium up to (and including) 25% more than their expected cost of flooding.
- 15% are extremely risk-averse. They are willing to pay a premium up to (and including) 45% more than their expected cost of flooding.
(A)[3 points] Assume that you can tell what type of customer anyone is before they buy your insurance. You can also charge each customer a different premium.
- What premium would you charge to the risk-neutral homeowners? Is it worth serving them?
- What premium would you charge to the risk-averse homeowners? Is it worth serving them?
- What premium would you charge to the extremely risk-averse homeowners? Is it worth serving them?
(B)[3 points] In reality you cannot tell what someone's risk aversion level is when they buy your insurance. Thus, you have to set a single premium. What premium should you set and who will buy your insurance?
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