We apply the aggregation property of Identical Shape Harmonic Absolute Risk Aversion (ISHARA) utility functions to analyze the comparative statics properties of a bargaining model with uncertainty. We identify sufficient and necessary conditions under which an increase in one's degree of risk...

This paper analyzes the three-party contracting problem among the payer, the patient and the physician when the patient and the physician may collude to exploit mutually beneficial opportunities. Under the hypothesis that side transfer is ruled out, we analyze the mechanism design problem when...