Between 1973 and 1980, the cost of crude oil rose suddenly and dramatically, precipitating convulsions in international politics. Conventional wisdom holds that international capital markets adjusted automatically and remarkably well: enormous amounts of money flowed into oil-rich states, and efficient markets then placed that new money in cash-poor Third World economies. David Spiro has followed the money trail, and the story he tells contradicts the accepted beliefs. Most of the sudden flush of new oil wealth didn't go to poor oil-importing countries around the globe. Instead, the United States made a deal with Saudi Arabia to sell it U.S. securities in secret, a deal resulting in a substantial portion of Saudi assets being held by the U.S. government. With this arrangement, the U.S. government violated its agreements with allies in the developed world. Spiro argues that American policymakers took this action to prop up otherwise intolerable levels of U.S. public debt. In effect, recycled OPEC wealth subsidized the debt-happy policies of the U.S. government as well as the debt-happy consumption of its citizenry.

Collectively, mankind has never had it so good despite periodic economic crises of which the current sub-prime crisis is merely the latest example. Much of this success is attributable to the increasing efficiency of the world's financial institutions as finance has proved to be one of the most important causal factors in economic performance. In a series of insightful essays, financial and economic historians examine how financial innovations from the seventeenth century to the present have continually challenged established institutional arrangements, forcing change and adaptation by governments, financial intermediaries, and financial markets. Where these have been successful, wealth creation and growth have followed. When they failed, growth slowed and sometimes economic decline has followed. These essays illustrate the difficulties of co-ordinating financial innovations in order to sustain their benefits for the wider economy, a theme that will be of interest to policy makers as well as economic historians.