Macro-economic models of growth and demographic increase

Abstract

The first macroeconomic models of growth had their origin from the hypothesis of a certain rate of demographic increase, afterwards considered as a parameter, a constant, with an incidence upon the model variables without being nevertheless determined by them. But in the middle of the fifties one has begun, on an experimental basis, to build some models where the demographic variations played an essential role. To sum all these models, either by analysing the integral logic of the main equations that integrate them, or through the critique of the same equations, is the central target of this article, that may also be useful for demographic researchers in order to aid them to determine better the probable impact of demographic trends in different countries.