Long-term memory processes have been extensively examined in recent literature as they provide simple way to test for predictabilty in the underlying process. However, most of the literature interprets the results of estimated Hurst exponent simply by its comparison to its asymptotic limit of...

While the significance of tourism for the Czech Republic's economy is relatively high, it is far from being the dominant industry. Despite the recent substantial investments in this particular field of economic activity, the share of tourism in the gross value added has been steadily declining,...

Building upon exhaustive research of extant and often fragmentary contemporary resources, this paper provides a thorough analysis of financial options trading and sales in interwar Czechoslovakia. Whilst focusing primarily on a remarkable bucketshop episode occuring in the late twenties and...

The article deals with a numerical comparison of impacts of financial crises on the stock market over the last one hundred years. The goal of the analysis is to investigate, according to certain criteria, whether the current crisis on the stock market is more serious than the previous ones.

Volatility of the financial time series belongs to the crucial estimated parameters in finance (e.g. in risk management, derivative pricing). It is well known, that volatility varies in time, so that new approaches of volatility modeling have appeared. In this paper two models of the conditional...

The article deals with a typical phenomenon of financial time series - volatility. These time series usually embody intermittent periods of relative "calm" and quite high variability. A volatility modelling of time series is made with the help of special econometric volatility models which...

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...