TY - UNPD A1 - Kwon, Spencer Yongwook A1 - Ma, Yueran A1 - Zimmermann, Kaspar T1 - 100 years of rising corporate concentration T2 - SAFE working paper ; No. 359 N2 - We collect data on the size distribution of all U.S. corporate businesses for 100 years. We document that corporate concentration (e.g., asset share or sales share of the top 1%) has increased persistently over the past century. Rising concentration was stronger in manufacturing and mining before the 1970s, and stronger in services, retail, and wholesale after the 1970s. Furthermore, rising concentration in an industry aligns closely with investment intensity in research and development and information technology. Industries with higher increases in concentration also exhibit higher output growth. The long-run trends of rising corporate concentration indicate increasingly stronger economies of scale. T3 - SAFE working paper - 359 KW - Corporate concentration KW - economies of scale Y1 - 2022 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/64957 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-649573 UR - https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3936799 IS - May 2022 PB - SAFE CY - Frankfurt am Main ER -