Little is known about perceptions of medical expenditure risks despite their presumed relevance to health insurance demand. This paper reports on a unique elicitation of subjective probabilities of medical expenditures from rural Ethiopians who are offered the opportunity to purchase health...

We study an insurance model characterized by a continuum of risk types, private information and a competitive supply side. We use the model to investigate the welfare effects of discrimination (also known as risk selection). We postulate that a test is available that determines whether an...

Asset-based lending, the supply of loans based on floating collateral, is an important source of funding for small firms. We analyze the effect of competition on asset-based loan markets on interest rate distributions and the mobility of small firms. Close monitoring of collateral by lenders...

We study the existence of a profitable unemployment insurance market in a dynamic economy with adverse selection rooting in information on future job losses. The new feature of the model is that the insurer and workers interact repeatedly. Repeated interactions make it possible to threaten...

We develop a theory of leadership that focuses on the role managers play in motivating employees through their attitude towards employees. We model a manager's attitude as her perception about employees' abilities of successfully completing challenging tasks. We show that a positive attitude...