But this is not a grave issue. Indeed, we show in Sect. 3, as the first result of this paper, that Fattorini's theorem can easily be deduced from Chander and Singh's. Follow- ing this, we show—in the same section—that Fattorini's theorem can be further extended, namely we prove...
However, as fewer countries remain concerned about high fertility, more and more countries are now facing a very different problem, i.e., below-replacement fertility levels. The shift from growing and younger to stable and older populations will require fresh policy thinking. Trying to bring back...