Firm Size and Industrial Structure in the United States During the Nineteenth Century
研究了19世纪中期美国大型企业兴起对产业结构的影响，发现其对平均规模、规模不平等和集中度的影响并不一致。
This paper investigates the impact of the emergence of large-scale enterprises on industrial structure in America in the mid-nineteenth century and concludes that their impact was ambiguous. In cottons and irons, average scale increased dramatically, but inequality in the size distribution of plants declined and economic concentration showed no clear trend. In other industries, changes in average scale were much smaller and inequality increased, but again there was no clear trend in concentration.