Errors in projecting demographic change have been considerable in recent decades. The fertility declines and increased longevity associated with the concluding global demographic transition have been surprisingly rapid, leading to accelerated ageing of populations in developed countries and in...

demographic transition have led to accelerated ageing of populations in developed countries and in several advanced developing countries. This paper introduces a global demographic model from which emerge the implications of these changes for population sizes, age distributions and gender...

The fertility declines associated with the final phase of the global demographic transition have led to accelerated ageing of populations in developed countries and in several advanced developing countries. This paper introduces a global demographic sub-model, from which emerge the global...