nber working paper series physical and human capital deepening new trade patterns in japan keiko ito kyoji fukao 10209 http www org papers w10209 national bureau of economic research 1050 massachusetts avenue cambridge ma 02138 january 2004 the authors would like to thank editors this volume discussants chin hee hahn ji chou participants fourteenth annual east asian seminar on economics for their helpful comments are also grateful yoshimasa yoshiike tangjun yuan undertaking meticulous data calculations views expressed herein those not necessarily 2003 by all rights reserved short sections text exceed two paragraphs may be quoted without explicit permission provided that full credit including notice is given source depening no jel c23 f14 f16 abstract investigates international division labor its effect factor intensities mainly focusing