A country gets rich before the birth rate falls, so just driving down the birth rate of a poor country doesn't affect the underlying mechanism. You can't just c

A country gets rich before the birth rate falls, so just driving down the birth rate of a poor country doesn't affect the underlying mechanism. You can't just copy the superficial aspects of a successful society and expect the rest to just fall into place, for the same reason that simply holding elections doesn't magically turn a dictatorship into a stable functioning democracy. You have to address the root causes, if they are amenable to analysis.