"This paper summarizes recent developments in the theory and practice of monetary policy in a closed economy and explains what these developments mean for U.S. dollar policy. There is no conflict between what is appropriate U.S. monetary policy at home or abroad because the dollar is the world's...

"We analyze the volatility surface vs. moneyness and time to expiration implied by MIBO options written on the MIB30, the most important Italian stock index. We specify and fit a number of models of the implied volatility surface and find that it has a rich and interesting structure that...