This paper provides an econometric examination of geographic R&D spillovers among countries by focusing on the issue of cross-sectional dependence, and in particular on the different ways – weak and strong – it may affect the model. A preliminary analysis based on the estimation of the...

This paper provides an econometric examination of geographic R&D spillovers among countries by focusing on the issue of cross-sectional dependence. By applying several unit root tests, we first show that when the number of lags of the autoregressive component of augmented Dickey Fuller test-type...

We study long run carbon emissions - income relationships for advanced countries grouped in policy relevant groups - North America and Oceania, South Europe, North Europe. By relying on recent advances on Generalized Additive Models and adopting interaction models, we handle simultaneously three...

This paper revisits the Porter hypothesis by pursuing two new directions. First, we compare the results obtained with two complementary approaches: parametric stochastic frontier analysis and conditional nonparametric frontier analysis. They presents relative advantages and drawbacks. Secondly,...

We investigate carbon Kuznets curves (CKC) relationships for advanced countries grouped in policy relevant groups - North America and Oceania, South Europe, North Europe - by means of various homogeneous, heterogeneous and shrinkage/Bayesian panel estimators. We try to provide an answer to the...

This paper documents the structural differences between climate change leading `actors' as Northern EU countries, and `lagging actors' - southern EU countries and the `Umbrella group' - with regard to their long run carbon-income relationships. We show that such categorization gives relevant...

This paper documents the structural differences among advanced countries with regard to their long run carbon-income relationships. On the basis of a first application of intervention analysis to Environmental Kuznets curves, we show that time related effects, namely structural breaks, have been...