Urban economists have long recognized that space is economically important. Evidence of the importance of urban agglomeration and the offsetting effects of congestion are provided in a number of studies of productivity and wages. Little attention has been paid to this evidence in the economic...

This paper uses the concept of cointegration and a theoretical framework that incorporates transitional dynamics to re-examine the evidence concerning empirical support for 1st generation, semi-endogenous growth, and Schumpeterian growth. The data for the post-war US economy show that the...