Dak
mentat
If one regional population's reproduction rate is in decline and another's is increasing, then transplanting children from the increasing population to the declining one means that the declining population has better odds of producing more children in the future.
Well that depends on the reasons for the disparity not changing. But somewhat true. Unfortunately, the places with high TFR are Muslim and/or have average IQ ranges of <65-85. IQs of 85 or lower can barely do the most basic, repetitive of jobs, and that's between 80-85. That's the reason the the reason the 3rd world of today has been an intractable problem. Furthermore, ehen you import enough 3rd world people, you get third world problems, which include currently, high TFR but terrible living standards because almost no one is smart enough to engage in, much less manage the necessary systems and technology.