Testing the Mandate Model in Britain and the United States: Evidence from the Reagan and Thatcher Eras

The hypothesis that parties are better able to carry out mandates in Britain than the United States is tested for the Reagan and Thatcher years. A list of specific pledges was compiled and it was determined whether or not the pledges were fulfilled. The primary finding is that more Conservative party pledges were fulfilled, compared to those of the Republican and Democratic parties in the United States. In each country policy took a conservative turn, but because more pledges were fulfilled in Britain, the ‘Conservative revolution’ was more thorough there than in the United States. It is suggested, in contrast to the findings of previous literature, that institutional differences between the two countries are one factor that matters when it comes to bringing about policy change.