In addition to showing the connection between parallel contingent and noncontingent risk comparison problems, we articulate a method for solving both kinds of problems using the "basis" approach. The basis approach has often been used implicitly, but we argue that there is value to making its...

This paper studies a classical extension of the Black and Scholes model of option pricing, often known as the Hull and White model. Our specificity is that the volatility process is assumed not only to be stochastic, but also to have long memory features and properties. We study here the...

This paper concludes that a market for state-contingent claims (UK horserace betting) displays evidence of pervasive, but heterogeneous forms of, inefficiency, in significant contrast to earlier investigations. Using hitherto unavailable data, comparison of notional returns implicit in parallel...

An individual confronts multiple risks she insures by independent specialized monopolies. Though the individual does not act strategically, the indirect competition between monopolies can leave her with part of the surplus. This is the case if her global risk premium is lower than the sum of...