George Soros, the prominent financier, avoids using the financial contracts known as derivatives “because we don’t really understand how they work.” Felix Rohatyn, the investment banker who saved New York from financial catastrophe in the 1970s, described derivatives as potential “hydrogen bombs.”
And Warren Buffett presciently observed five years ago that derivatives were “financial weapons of mass destruction, carrying dangers that, while now latent, are potentially lethal.”
One prominent financial figure, however, has long thought otherwise. And his views held the greatest sway in debates about the regulation and use of derivatives ”” exotic contracts that promised to protect investors from losses, thereby stimulating riskier practices that led to the financial crisis. For more than a decade, Alan Greenspan has fiercely objected whenever derivatives have come under scrutiny in Congress or on Wall Street.