Why have Democrats remained committed to an incrementalist, modestly ambitious vision of governance, even as the country has faced unprecedented challenges? One critical yet underappreciated piece of the explanation is the rise of a distinctive "economic style of reasoning" that has become prevalent in Washington.

Conservatives have used cost-benefit analysis much more strategically than liberals to advance underlying political goals. Rethinking CBA within an LPE framework will require not only critique of its technical assumptions, but a willingness to be similarly strategic in thinking about its deployment.