The Solow-Swan Model With A Non-constant Population Growth Rate

This paper is devoted to the study of the Solow-Swan growth model with a variable population growth rate, which is supposed to be bounded. The model is classified as a differential equation as the population growth rate is a negative and non-constant number, which represents that the nation has the phenomenon of population aging. Specifically, under certain circumstances, the modified Solow-Swan model could be used to explain the relationship between population aging and wealth gathering.