Cointegration and serial correlation common features information are used in jointly decomposing the series into trend and cycle components. The authors find considerable differences in the volatility of regional cycles. Controlling for differences in volatility, the authors find a great deal of comovement in the cyclical response for all regions but the Far West. Possible sources underlying differences in regional cycles are explored, such as the share of a region's income accounted for by manufacturing, defense spending as a proportion of a region's income, oil price shocks, and the stance of monetary policy. Somewhat surprisingly, the authors find that the share of manufacturing in a region seems to account for little of the variation in regional cycles relative to national cycles, but manufacturing share differentially affects trend growth for four of the seven regions studied.

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