June 7
 
"Optimal Dynamic Contracts: Evidence from Life Insurance"
Igal Hendel, Princenton University
Abstract 
We look at the life insurance industry to study the properties of long term contracts in a world with imperfect commitment. The main issue is how contracts are designed to deal with classification risk when consumers cannot commit to a contract. The data is especially suited for this investigation; we use data on real contracts which includes the entire profile of future premiums. We present a model that captures the main features of this industry and we find that the predictions of the model get strong support in the data. The lack of commitment by consumers appears to strongly shape the way contracts are designed. All types of contracts involve some front-loading. This generates a partial lock-in of consumers. Contracts that are more front-loaded have a lower present value of premiums over the period of coverage. This is consistent with the idea that more front-loaded contracts retain better risk pools.