SHIFTWORK

We analyze the organization of employment in nonsimultaneous shifts, c onsidering the shift composition of manufacturing employment, both in the business cycle frequency and in the long run. With regard to the s hort run, we argue that shiftwork would be procyclical and that this, combined with the inherent lumpiness of shifts, may help resolve the p uzzle of the procyclicality of labor productivity. With regard to the long run, we identify channels that may account for the increase in sh iftwork in the past half-century and for the nonnegative cross-country correlation between shiftwork and the level of income.