The main contribution of this paper is the construction of a metric based on optimal filtering for measuring the distortionary effect of filters. The Hodrick-Prescott filter (HP-filter) has been critizised for inducing spurious cycles when filtering macroeconomic time series with the "typical...

I reconsider the empirical relationship between business cycles and economic growth and pose the question: How long are business cycles when we try to distinguish between business cycles and economic growth? There is a common held view - a myth - that the cyclical component has a period up to...