Postwar U.S. Business Cycles: An Empirical Investigation

The authors propose a procedure for representing a time series of a smoothly varying trend component and a cyclical component. They document the nature of the comovements of the cyclical components of a variety of macroeconomic time series. The authors find that comovements are very different than the corresponding comovements of the slowly varying trend components. Copyright 1997 by Ohio State University Press.