Law Commons^™

On The Theoretical Foundations For Regulating Financial Markets, Katharina Pistor

Faculty Scholarship

How we think about financial markets determines how we regulate them. Since the 1970s modern finance theory has shaped how we think about and regulate financial markets. It is based on the notion that markets are or can be made (more) efficient. Financial markets have been deregulated when they were thought to achieve efficient outcomes on their own; and regulation was designed to lend crutches to them when it appeared that they needed support. While modern finance theory has suffered some setbacks in the aftermath of the global crisis, defenders hold that improving market efficiency should still be the overriding …