This paper tests whether the transfer of production sl:ages within US-headq
uartered multinational enterprises (MNEs) from US parents to foreign affili
ates has contributed to within-industry shifts in US relative labor demand
toward the more-skilled. There are two main empirical results. First, there
is evidence of MNE transfer during the past 20 years. Second, regression a
nalysis does not support the MNE hypothesis. MNE transfer tends to have sma
ll, imprecisely estimated effects on US relative labor demand. This finding
is inconsistent with models of MNEs in which affiliate :activities substit
ute for parent unskilled-labor-intensive activities. (C) 2000 Elsevier Scie
nce B.V. All rights reserved. JEL classification: F21; F23; J31.