A stochastic model for pure-jump diffusion (the compound renewal process) can be used as a zero-order approximation and as a phenomenological description of tick-by-tick price fluctuations. This leads to an exact and explicit general formula for the martingale price of a European call option. A...

We present a model in which investors observe the same macroeconomic data but have varying levels of information about the parameters that determine the distribution of the expected returns on investment. During a crisis that increases macroeconomic uncertainty and reduces asset prices, the...

This paper discusses, in a very general way, a system of IMF insurance against sovereign default that could be offered to private lenders and banking groups. The system could overcome many of the current issues that plague the international private lending market, such as moral hazard on the...