A theory of endogenous growth is based on an investment possibility fu
nction, relating the growth rate of output to the ratio of gross inves
tment to output and the growth rate of employment as formulated origin
ally by M. F. Scott. Consumers maximize an intertemporal utility funct
ion and producers maximize the value of the firm. The long-run rate of
growth depends on consumer preferences, the exogenous growth of labor
supply and the tax rate on output. The functional distribution of inc
ome is determined along with the investment ratio in the steady state.
Labor market imperfections and real wage inertia induce transition pr
ocesses, which are relevant for medium term growth.