Estimation of volatility of financial time series plays a crucial role in pricing derivatives. Volatility is often estimated from historical data; however, it is well known that volatility varies in time. We propose a method to choose a suitable length of historical data to estimate contemporary...

The paper focuses on a comparison of three different approaches that seek to explain the existence of public goods. First the mainstream Samuelson-Musgrave approach, based on the search for an objective nature of so-called pure public goods, is critically evaluated, especially with respect to...

Economic globalisation can be defined as growing interdependence of financial and goods and services markets in the international scale. The important part of globalisation form supranational corporations, which are reaction on the rising competitiveness and need for strategic alliances. The...