Aggregate Export Concentration in Japan
研究了日本制造业中出口商在总体层面的集中程度，发现出口高度集中于少数大企业，且出口集中度远高于企业集中度。
This paper reports some new evidence on aggregate concentration of exporters in the Japanese manufacturing industry. Exports in Japanese manufacturing are highly concentrated in a few big firms, and aggregate export concentration is much higher than aggregate firm concentration. Copyright 1991 by Blackwell Publishing Ltd.