In: Economics
Partial Insurance: An individual has $2000 in physical assets, and $600 in cash initially. This person faces the following loss distribution to the wealth. Full insurance is available at $600
| 
 Probability  | 
 Loss  | 
| 
 0.5  | 
 0  | 
| 
 0.1  | 
 200  | 
| 
 0.2  | 
 400  | 
| 
 0.1  | 
 1000  | 
| 
 0.1  | 
 2000  | 
The Individual can also buy partial insurance with i. a $200 deductible, or ii. 75% coinsurance, or iii. Upper limit on coverage, with the limit being $1000. The premium on each partial coverage policy is $450. Provide a ranking of the four types of policies for the individual, in terms of preference if the preference function is given by U(FW) = LN(1+FW), where FW is final wealth of the individual.
| Probability | Loss $ | Loss forecast $ | 
| P | L | P X L | 
| 0.5 | 0 | 0 | 
| 0.1 | 200 | 20 | 
| 0.2 | 400 | 80 | 
| 0.1 | 1000 | 100 | 
| 0.1 | 2000 | 200 | 
| 1.00 | Toal | 400 | 
FW (no insurance) = Physical assets + cash - Total loss forecast = 2000 + 600 - 400 = $ 2200 [ RANK 1]
FW ( full insurance) = Physical assets + cash - Insurance Premium = 2000 + 600 - 600 = $ 2000 [RANK 2]
FW (partial insurance with $200 deductible) = Physical assets + cash - Insurance Premium (i.e., $450)- Deductible = $1950 [RANK 3]
FW (partial insurance with 75% co-payment) = Physical assets + cash - Insurance Premium (i.e., $450)- copayment ( i.e., 75% of total loss forecast) = 2000 + 600 - 450 - 300 = $1850 [RANK 4]
FW (partial insurance with $ 1000 limit) = Physical assets + cash - Insurance Premium (i.e., $450)- forecast value of expected loss of $ 2000 = 2000 + 600 - 450 - 200 = $1950 [ RANK 3]
Ranks for consumer are juxtaposed above as the utility function is based on LN (natural logarithm) of FW. In other words more the FW, higher the utility.