…Population migration is therefore said to be an adaptation of the population to economic and social changes and regional economic and social disparities. The theory that explains the occurrence of such migration is the “push-pull” theory. It has been said that large cities have the appeal to attract population, while rural areas have many factors that push out population. *Some of the terminology that refers to the "extrusion and suction theory" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…人口移動は,したがって経済的・社会的変化や地域の経済的・社会的格差に対する人口の適応であるといわれる。このような移動の発生を説明する理論として〈押出し・吸引の理論“push‐pull” theory〉がある。大都市は人口を吸引する魅力をもっているとか,農村は人口を押し出す要因が多いということがいわれてきた。… ※「押出し・吸引の理論」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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