This paper examines the effect of technological change on the demand for pr
oduction and nonproduction workers of the Japanese manufacturing industries
since the 1980s. First, a decomposition of the change in the share of nonp
roduction workers in total employment into between-industry shifts and with
in-industry shifts reveals that the within-industry shifts were dominant in
the 1980s. Second. cross-sectional regressions show that investment in com
puters has had a significant impact on increasing the share of the wage-bil
l held by nonproduction workers. These findings suggest that skill-biased t
echnological change is at work in Japanese manufacturing industries. (C) 20
01 Academic Press.