人口负担比是相对次要的因素。譬如,一个值得注意的反证是:根据人口负担比50％截断的曲线,我们看到的日本人口机会窗口期(或称“人口红利”,编者注)落在1965-2003期间,但日本的高速经济增长出现在1955-1973年,年均GDP增长率为9．22％,1973-2000年,马上就进入了低增长 The burden ratio is a relatively minor factor. For example, one notable counter-argument is that according to the curve of 50% cut-off in the population burden ratio, we see that Japan's window of opportunity in the population (or “demographic dividend”) falls during 1965-2003, but Japan's high-speed Economic growth appeared in 1955-1973 with an average annual GDP growth rate of 9.22%. From 1973 to 2000, it entered a period of low growth