Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KOGUCHI Teppei,Performance of Alliance of Electric Machinery Industry in Terms of Productivity : Empirical Analysis of Specialized Producers Since the 1990's,Studies in Regional Science,02876256,JAPAN SECTION OF THE REGIONAL SCIENCE ASSOCIATION INTERNATIONAL,2008,38,3,663-676,https://cir.nii.ac.jp/crid/1390282679410122496,https://doi.org/10.2457/srs.38.663