Central bank independence and inflation: Corporatism, partisanship, and alternative indices of central bank independence

A well-developed theoretical literature suggests that central bank independence causes low inflation. Empirical work supporting this hypothesis is unsatisfactory, however, for two reasons: statistical analysis has only recently begun to include control variables, and important political variables that are related to inflation have not yet been included; analysis has not yet undertaken a systematic comparison of alternative indices of central bank independence. This paper addresses both weaknesses by testing the explanatory power of eight indices of central bank independence in a political-economic model of inflation. The results suggest that while support for the central bank independence hypothesis survives a relatively inclusive set of control variables, support for the hypothesis is not independent of the particular index upon which analysis relies.