The purpose of this paper is to show how differences in individuals’ labour productivities cause differences in their accumulation of capital, and thereby analysing the evolution of the income distribution. There are three cases of interest: (i) the high productive accumulate relatively...

The pollution-convergence hypothesis is formalized in a neoclassical growth model with optimal emissions reduction: pollution growth rates are positively correlated with output growth (scale effect) but negatively correlated with emission levels (defensive effect). This dynamic law is...

This paper studies the statistical properties of the web of import-export relationships among world countries using a weighted-network approach. We analyze how the distributions of the most important network statistics measuring connectivity, assortativity, clustering and centrality have...