Ahmed wrote:Of course, demography evolves naturally (notwithstanding external circumstances) according to the two factors of births (mentioned at the beginning of this thread) and deaths. This last factor must logically weigh more and more heavily in countries where the age pyramid is currently widening upwards, particularly in China. If the "candle burns" at both ends, the process will be accelerated, while retaining the inertia specific to these phenomena.
That "the candle burns at both ends" is certainly a more pronounced risk in China than elsewhere. Indeed the one-child policy was implemented in 1980, and it was generally "respected" (not really a choice...).
This means that around 40 years later, the number of women of childbearing age (let's say between 20 and 40 years old for simplicity) is minimal and relatively stable. And even if a rebound in the birth rate were looming, the result on the number of women of childbearing age would only be seen in 20 years...