The purpose of this paper is to investigate Efficient Market Hypothesis (EMH) for Visegrad Group. The stock prices have been analyzed for the period between 1995 and 2014 with panel multiple structural breaks unit root test which is developed by Carrion-i-Silvestre et al. (2005). According to...

The global economy is considerably dependent on fossil fuels, of which oil is by far the most important, and concerns about the impact of oil price volatility on the real economy have been recently fuelled by the positive correlation between oil and stock prices. This positive correlation might...

In this paper, an exploratory hierarchical method to classify variables is introduced as an alternative to principal component analysis when dealing with stock-exchange price time-series. The method is based on a particular principal component analysis applied to pairs of variables, each one...