William N. Goetzmann

The financial crisis of 2008 is a looming figure in current economic thinking. The global economy is still slowly recovering from the shock, and policymakers and academics continue to discuss the structural changes needed to prevent a recurrence. The stress of the last half decade has made two things very clear: A productive and innovative financial system is essential to the broader economy, but financial innovations made irresponsibly—without consideration of systemic risk and other impacts on society—can wreak havoc.

Yale SOM finance professors Frank Fabozzi, Gary Gorton, and Will Goetzmann discuss what caused the financial crisis, what we have learned since then, likely impacts of the financial reform legislation, and proposals to address unresolved issues in the housing and securitization markets.

By 2006, the subprime market had grown to 20% of the total U.S. mortgage market, and 75% of these loans were securitized and sold off to investors around the world, facilitating an influx of capital. With credit easily available, more people than ever before were able to buy homes — but then the market seized up.

A document from 1787 Holland lists the names of girls whose income from government annuities was pooled and securitized, allowing investors to essentially bet that the girls would live a long time. Yale SOM Professors Will Goetzmann and Geert Rouwenhorst discuss how this novel financial device functioned and how it fits in the story of the development of more and more sophisticated securities.