Acht, J. van

japan business unemployment economy entrepreneurship japanese keiretsu country structure business ownership market growth thurik ownership employment model sector development policy japanese firms level period change audretsch business sector entrepreneur venture 23 oecd countries technology effect research labor production keiretsu structure knowledge group oecd countries keiretsu model creation business owners paper enterprise university labor market employee relationship activity keiretsu firms environment percent process economic medium industry journal japanese economy system number institute increase result venture creation capital government germany personnel carree innovation section source organization wenneker netherland 2002 b figure rotterdam compendia owner verheul impact