Deregulation under Reagan ...
The question of how much of the overall trend of deregulation can be credited to Reagan remains contentious.
The economists Raghuram Rajan and Luigi Zingales point out that many of the major deregulation efforts had either taken place or begun before Reagan (note the deregulation of airlines and trucking under Carter, and the beginning of deregulatory reform in railroads, telephones, natural gas, and banking). They argue for this and other reasons that "the move toward markets preceded the leader [Reagan] who is seen as one of their saviors. Economist William A. Niskanen, a member of Reagan's Council of Economic Advisers and later chairman of the libertarian Cato Institute, writes that deregulation had the "lowest priority" of the items on the Reagan agenda given that Reagan "failed to sustain the momentum for deregulation initiated in the 1970s" and that he "added more trade barriers than any administration since Hoover."
By contrast, economist Milton Friedman has pointed to the number of pages added to the Federal Register each year as evidence of Reagan's anti-regulation presidency (the Register records the rules and regulations that federal agencies issue per year). The number of pages added to the Register each year declined sharply at the start of the Ronald Reagan presidency breaking a steady and sharp increase since 1960. The increase in the number of pages added per year resumed an upward, though less steep, trend after Reagan left office. In contrast, the number of pages being added each year increased under Ford, Carter, George H.W. Bush, Clinton, and others.
The apparent contradiction between Niskanen's statements and Friedman's data may be resolved by seeing Niskanen as referring to statutory deregulation (laws passed by Congress) and Friedman to administrative deregulation (rules and regulations implemented by federal agencies). In sum, a large study by economists Paul Joskow and Roger Noll concludes that the changes in economic regulation simply do not reflect a sudden ideological change in federal executive branch views ... many of the significant changes in economic regulation began during the Carter administration and were initiated by liberal Democrats ... it is not particularly productive to refer to a generic deregulation movement or to think of it as a consequence of the election of Ronald Reagan.