By means of regression analysis, we address the price impact of intermittent renewable energy sources (wind, solar and waves) for the Mibel Iberian Market (Portugal and Spain) during the period spanning from 2010 to 2015. Our results suggest that: i) intermittent renewable energy has a material...

This paper analyses the contagion effects of the Greek stock market to the European stock markets of the NYSE Euronext group (Belgium, France, the Netherlands and Portugal), in the context of the 2010 sovereign debt crisis. Three tests of contagion are performed using copula models. The first...

The relationship between variable renewable energy supply and electricity price volatility is a controversial issue in the economic literature. In general, the literature has been inconclusive about the sign of the impact of the penetration of these technologies on price volatility. This paper...

This study assesses whether capital markets of developed countries reflect the effects of financial contagion from the US subprime crisis and, in such case, if the intensity of contagion differs across countries. Adopting a definition of contagion that relates the phenomenon to an increase of...

This paper presents three tests of contagion of the US subprime crisis to the European markets of the NYSE-Euronext group. Copula models are used to analyse dependence structures between the US's and the other markets in the sample, in the pre-crisis and in the subprime crisis periods. The first...

Com este estudo investigasse a possibilidade de utilizacao de uma rede neuronial artificial na deteccao dos mercados de accoes da Euronext que proporcionam a melhor rendibilidade diaria. A rede, treinada com o algoritmo de Levenberg-Marquardt, recomenda a um investidor hipotetico a escolha do...

In this paper we propose a discrete time model to measure the default spread for Bank loans. The model provides a closed-form solution for the short and medium term default spread, which we assume to be dependent on the default probabilities, the losses given default, the risk grades transition...