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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Orris C. Herfindahl ： ウィキペディア英語版 Orris C. Herfindahl Orris Clemens Herfindahl (June 15, 1918 in Parshall, North Dakota - December 16, 1972 while traveling in Nepal〔) was an economist who studied natural resources. However, he is mainly known as the inventor of a concentration index (the Herfindahl index) which he proposed in his 1950 doctoral dissertation on the steel industry while at Columbia University.〔〔〔 In fact a similar index (with the addition of a square root) was proposed earlier (in 1945) by Albert O. Hirschman.〔 Thus, it is usually referred to as the Herfindahl-Hirschman Index. == Publications == * ''Economic theory of natural resources''〔 * ''Natural Resources Information for Economic Development''〔 * ''Copper Costs and Prices: 1870-1957'' - study of copper, sometimes seen as a bellwether of global activity.〔〔〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Orris C. Herfindahl」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.