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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 Potential support ratio ： ウィキペディア英語版 Potential support ratio The potential support ratio (PSR) is the number of people age 15-64 per one older person aged 65 or older. This ratio describes the burden placed on the working population (unemployment and children are not considered in this measure) by the non-working elderly population.〔World Population Ageing 1950-2050, p 41 (Definition of the Indicators of Population Ageing )〕 As a population ages, the potential support ratio tends to fall. Between 1950 and 2009, the potential ratio decline from 12 to 9 potential workers per person aged 65 or over. By 2050, the potential support ratio is projected to drop further to reach 4 potential worker per older person. The reduction of potential support ratio has important implications for social security schemes, particularly for pay-as-you-go pension systems under which taxes on current workers pay the pensions of retirees. In 2015, Japan has the lowest PSR in the world, at 2.1.〔http://esa.un.org/unpd/wpp/Publications/Files/Key_Findings_WPP_2015.pdf, page 13.〕 ==See also== *Dependency ratio 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「Potential support ratio」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.