Bundled insurance contracts, providing protection based on several loss coverages, are attractive because they allow insurers to focus on the needs of the policyholder. A common contract feature is a deductible set so that the insurance pays the excess over the deductible of the sum of losses...

This informal paper explores models of competitve insurance market equilibrium when individuals of initially similar apparent risk experience divergence in risk levels over time. The information structrue is modeled in three alternative ways: all insurers and insureds know risk at any point in...