What we have found over the years in the marketplace is that derivatives have been an extraordinarily useful vehicle to transfer risk from those who shouldn't be taking it to those who are willing to and are capable of doing so.
Alan GreenspanIt seems superfluous to constrain trading in some of the newer derivatives and other innovative financial contracts of the past decade. The worst have failed; investors no longer fund them and are not likely to in the future.
Alan Greenspan