In the postwar world there has been more international cooperation than ever before, but there is more discord than cooperation. Interdependence adds to both. Much of the past cooperation, and especially the "regimes" that have been created for money, trade and other matters-more or less lasting arrangements that involve rules, commitments and accepted ways of doing things-date from the time when the United States had a far more dominant position than it does now. Can cooperation increase if there is no hegemony? Yes, says Professor Keohane in this outstanding book. The case rests on the demonstration that states, by adjusting their national policies to one another, thereby enhance their ability to serve their national interests. The author's painstaking consideration of difficulties and objections should show how often narrow assumptions and obscurantist jargon have led to loose thinking and worse policy conclusions.