On detrending and cyclical asymmetry
指出，对商业周期对称性的检验需谨慎，因为过滤数据后检验效力低，只有显著不对称才易被检测。实证分析了七国集团实际GDP的周期成分。
Abstract This paper considers the issue of testing for symmetry of the business cycle. It is demonstrated that findings of symmetry should be interpreted with caution since tests tend to have low power to detect asymmetries when applied to data that have been filtered to isolate their stationary business‐cycle component. This implies that asymmetries are likely to be detected in practice only when they are particularly prominent. An empirical application examines the properties of the cyclical component of real GDP for the G7 countries. Copyright © 2002 John Wiley & Sons, Ltd.