This paper analyses to what extent the Spanish provinces have shown a convergence process since 1980 to nowadays. The application of the Phillips-Sul methodology to the HDI recently developped by IVIE lead us to show that we cannot admit the exitence of a unique convergence process between them....

This study investigates changes in the relationship between oil prices and the US economy from a long-term perspective. Although neither of the two series (oil price and GDP growth rates) presents structural breaks in mean, we identify different volatility periods in both of them, separately....