diversification or concentration, following the categories of destinations (regional economic zones) and products. Therefore …, Hirschman Index (HI) is estimated in order to measure concentration/diversification of exports in the last 10 years. Results … indicate that there was a clear trend toward diversification in the destinations of exports, but there is little evidence that …

This paper analyzes the geographical concentration and diversification of industries in the Continuum-of-Goods Trade …, higher transportation costs lead to concentration in one region, and lower transportation costs lead to diversification … between the regions. For intermediate transportation costs, asymmetric diversification becomes a stable equilibrium through a …

The anomalous inverse concentration-price relationship observed by some researchers in the newspaper market has been … model it is shown how a profit-maximizing publisher takes advantage of that feature. Empirically an inverse concentration …

literature, testing not only the causality running from bank market concentration to bank efficiency, but also the reverse … causality running from efficiency to concentration. The results obtained confirm the relative complexity of these causality … relationships, although they generally point to a negative causation running both from concentration to efficiency and from …

This article estimates the impact of industrial concentration on aggregate welfare as well as consumer and producer …, empirical results indicate that an across-the-board increase in concentration would enhance aggregate welfare in 69 % of the …. Further results indicate that greater concentration is likely to enhance aggregate welfare in industries with low or moderate …

We present a dynamic duopoly model of R&D with spillovers where industry concentration is endogenous. In our model … analysis highlights the effects of spillovers through dynamic changes in industry concentration, which cannot be obtained in a … cases where greater spillovers lead to higher product market concentration. We find that the impact of imperfect …

disproportionable concentration of progress among larger domains. Our analyses suggest that this phenomenon is explained by a …

market concentration. Cooperatives do, 'however, have the potential to counteract their competition's position by pooling …

oil varied substantially among commodities and individual contract months during 11)57-66. Concentration was frequently … higher in soybean meal tllan in soybean oil, and lowest in soybeans. Higher levels of concentration appeared more often In …