In: Economics
1) The example of market failure is : (D) private decsiions that lead to negative social externalities because market failure is caused due to negative externalities and private decisions causing externality is a market failure.
2) The largest single share of total personal health expenditure in US comes from (B) private insurance as calculated in the year 2017. It was 34% of the total NSE.
3) (E) The welfare loss due to insurance is the example of willingness to pay more than expected loss in order to obtain insurance coverage because it is loss of welfare as a whole.