Government regulators often establish maximum prices for regulated services. This paper explains the proper economic principles for establishing such constraints. The principles imply a range - an upper limit and a lower limit - that constrain the regulator's discretion. Principles emerging from...

"Being a utility regulator has perils because the independence of the regulator necessarily removes power from politicians, operators, and others. Furthermore, regulators are sometimes scapegoats for unpopular policies and unavoidably become involved in shaping the policies that they are...