We evaluate the usefulness of the Hodrick-Prescott (HP) filter as a proxy for rational expectations, using long runs of annual US inflation data. Our conclusion is that while the HP series are not fully rational in the sense of Muth (1961), they do generally meet the criterion of `weak...

Economists often use Gallup Poll data on presidential performance to analyze the interaction between politics and the state of the macroeconomy. The household survey undertaken by the Survey Research Center (SRC) of the University of Michigan provides an alternative data base. The SRC asks...