For proper valuation of risk to which the portfolio of financial assets is exposed, it is necessary to forecast the second moments of financial time series, that is variabilities. The empirical investigations show that financia time series are heteroskedastic, i.e. their volatility is not...

This paper examines the evolution of the EU’s trade in services over the 2004-2008 period in comparison with its trade in goods. It aims to disentangle the main trends shaping the EU’s services trade flows under the impact of increasing globalisation and the last two waves of EU enlargement....