This paper presents two tests of the rational partisan theory (RPT) of
business cycles. First, I develop and test an RPT model in which wage
contracts are staggered and overlapping. Bureau of Labor Statistics (
BLS) data on the density and duration of wage contracts and estimates
of the incumbent parry's election-win probability are employed to cali
brate partisan intervention variables entered in output growth regress
ions. Next, I perform a more ''flexible'' lest of the RPT by comparing
partisan output growth differences after elections in which the outco
me was relatively surprising with partisan output growth differences a
fter elections in which the outcome was widely anticipated. The two ap
proaches produce the same conclusion: The RPT is not supported by the
data.