The recent financial crisis led to sweeping reforms that inspired countless references to the financial reforms of the New Deal. Comparable to the reforms of the New Deal in both scope and scale, the 2,300-page Dodd-Frank Act of 2010--the main regulatory reform package introduced in the United States--also shared with New Deal reforms the assumption that the underlying cause of the crisis was misbehavior by securities market participants, exacerbated by lax regulatory oversight.

With Wasting a Crisis, Paul G. Mahoney offers persuasive research to show that this now almost...