By establishing the theoretical connection between sectoral labor and
product markets, we explicitly develop the economic relationship of th
ese markets within the imperfect information new classical explanation
of business-cycles. We then conduct an empirical analysis of the shor
t-run cyclical behavior of real output, prices and wages at the sector
al level of disaggregation. We estimate both time-series and cross-sec
tional regressions for 28 private two-digit Standard Industrial Classi
fication (SIC) industries. Industry-specific demand variability does n
ot induce a greater misperception of aggregate demand shocks that woul
d differentiate cyclical fluctuations across industries as hypothesize
d by the new classical imperfect-information explanation.