//-->
Seasonal unit roots in aggregate U.S. data
Beaulieu, J.Joseph, (1993)
WHAT HAVE MACROECONOMISTS LEARNED ABOUT BUSINESS CYCLES FROM THE STUDY OF SEASONAL CYCLES? - Working Paper 5258
Miron, Jeffrey A., (1995)
The Workweek of Capital and Capital Utilization in Manufacturing
Beaulieu, J.Joseph, (1998)