作者: Tracey A. LaPierre , Mary Elizabeth Hughes
DOI: 10.1007/978-1-4020-8356-3_10
关键词: Population ageing 、 Baby boom 、 Total fertility rate 、 Demographic economics 、 Pension plan 、 Political science
摘要: Population aging is a global phenomenon. The populations of developed nations have aged quickly over the last fifty years, shifting from a median age of 29.0 in 1950 to a median age of …