The relatively long term period of stability before the present crises called even "Great Moderation" or "Golden Age of Central Banking" indicated that the infl ation targeting was a success story. As of 2008 a lot has changed and the debate over "Leaning against the wind or Clean afterwards?"...

Over the past few years, the Value at Risk indicator (VaR) has evolved, without doubt, into the most frequently used comprehensive tool for assessment of potential losses caused by adverse changes in market rates. However, the common models used for VaR assessment are based only on mid prices...