翻訳と辞書 Words near each other ・ Demofonte ・ Demofonte (Berezovsky) ・ Demofoonte (Gluck) ・ Demofoonte (Mysliveček) (1769) ・ Demofoonte (Mysliveček) (1775) ・ Demogoblin ・ Demogorgon ・ Demogorgon (disambiguation) ・ Demogorgon (Dungeons & Dragons) ・ Demographic analysis ・ Demographic and Health Surveys ・ Demographic crisis of Russia ・ Demographic dividend ・ Demographic economics ・ Demographic estimates of the flight and expulsion of Germans ・ Demographic gift ・ Demographic gravitation ・ Demographic history ・ Demographic history of Bačka ・ Demographic history of Belgrade ・ Demographic history of Bosnia and Herzegovina ・ Demographic history of Croatian Baranja ・ Demographic history of Detroit ・ Demographic history of Greece ・ Demographic history of Japan before Meiji Restoration ・ Demographic history of Jerusalem ・ Demographic history of Karachi ・ Demographic history of Kosovo ・ Demographic history of Macedonia ・ Demographic history of modern Greece Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Demographic gift ： ウィキペディア英語版 Demographic gift Demographic gift is a term in used to describe the initially favorable effect of falling fertility rates on the age dependency ratio, the fraction of children and aged as compared to that of the working population. ==Overview== Fertility declines in a population combined with falls in mortality rates—the so-called "demographic transition"—produce a typical sequence of effects on age structures. The child-dependency ratio (the ratio of children to those who support them) at first rises somewhat due to more children surviving, then falls sharply as average family size decreases. Later, the overall population ages rapidly, as currently seen in many developed and rapidly developing nations. Between these two periods is a long interval of favorable age distributions, known as the "demographic gift," with low and falling total dependency ratios (including both children and aged persons). 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「Demographic gift」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.