Endogenous growth theory has not yet consistently incorporated
population growth or immigration into its models. As a result, in the present
day, there is no universally accepted endogenous growth model explaining the
empirical observed relationships between growth, population and immigration.
The present paper overcomes this inconvenience by designing a fully
specified Romer endogenous growth model, completely micro-founded, that
incorporates the existence of population growth and immigration and that
allows the stylised facts of growth as well as the relationships between
growth, population and immigration to be explained. In addition, the proposed
model is susceptible to calibration and simulation, and, when applied to the
US economy, provides a good fit to the data.
