During the past decade, academics – predominantly scholars of behavioral law and economics – have increasingly turned to the claimed insights of behavioral economics in order to craft novel policy proposals in many fields, most significantly consumer credit regulation. Over the same period, these ideas have also gained traction with policymakers, resulting in a variety of legislative efforts, such as the creation of the Consumer Financial Protection Bureau. Most recently, the efforts of behavioral law and economics scholars have been directed toward challenging a number of state laws that regulate retailers’ use of surcharge fees for consumer credit card payments. In part as a result of these efforts, the issue has come before multiple cour...