Correlations are crucial for pricing and hedging derivatives whose payoff depends on more than one asset. Typically, correlations computed separately for ordinary and stressful market conditions differ considerably, a pattern widely termed "correlation breakdown." As a result, risk managers...

Corporate governance can provide mechanisms to effectively monitor the use of derivatives. Using a sample of firms from 34 countries over the period 1990 to 1999, I find that firms with strong governance use currency derivatives for value-maximizing reasons as established by theory. On the other...

We present a model in which the addition of an option market leads to sunspot equilibria in an economy which has no sunspot equilibrium before the market is introduced. This phenomenon occurs because the payoff of an option contract is contingent upon market prices, and while prices are taken as...