We analyze the efficiency of urbanization patterns in a dynamic model of endogenous urban growth with two sectors of … equilibrium, compared to the efficient urbanization path, if economic growth implies increasing aggregate emissions. If, on the … other hand, production becomes cleaner over time (`quality growth') the urbanization path approximates the efficient outcome …

income growth among regions. Empirical data seem to support the absolute convergence hypothesis for U.S. states, but the data … also show that natural resource-abundance is a significant negative determinant of growth. We find that natural resource … effects can fully explain the negative effect of natural resource abundance on growth. …

We examine empirically the effect of natural resource abundance on economic growth. We find that natural resources have … a negative impact on growth when considered in isolation, but a positive impact on growth when including in the analysis … indirect effect on growth, that is, when we examine possible transmission channels, we find a strong negative effect of natural …

between R&D expenditures and productivity growth. The analysis considers the different contributions of various forms of R …

statistical hypothesis tests allow us to discriminate between two competing growth models: (i) the standard neoclassical growth … model similar to that employed by Mankiw, Romer, and Weil (1992), (ii) a Schumpeterian endogenous growth model closely …