No subject is more critical to financial professionals than volatility. Traders, researchers, risk managers and anyone involved in the derivatives markets will find a wealth of insights and practical applications in this breakthrough book.    From The Critics   BooknewsContains insights and practical applications for managing volatility, for traders, researchers, risk managers, and others involved in the derivatives markets. Subjects include volatility measurements, option pricing and volatility, delta hedging with uncertain volatility, the effects of double-barrier options on the foreign exchange markets, the relationship between cap and swaption volatilities, and software for managing exotic options. Annotation c. by Book News, Inc., Portland, Or.