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...

In this article is studied hypothesis, that every period (time interval) before financial crisis is distinguished by co-movement of several variables. The study is based on monthly data (that means no quarterly data, like portfolio investment, were used). This hypothesis, tested with vector...

We analyze effect of intraday information flow in three emerging EU stock markets-the Czech Republic, Hungary, and Poland. We use five-minute intraday data on stock market index returns and 15 types of EU and U.S. macroeconomic announcements during 2004-2007. We measure each announcement as its...

This paper presents regression analyses of import and export functions in the Czech Republic from 1993 to 1998. The first part of the article summarizes the standard Keynesian income approach to the balance of payments. This traditional theory is considered alongside the theory of the monetary...

Cílem práce je odhadnout a vyšetøit dlouhodobý vztah mezi penìžní zásobou M1, cenovou hladinou, výstupem a alternativními náklady držby penìz a to, zda lze tento vztah - v pøípadì, že existuje - interpretovat ve smyslu dlouhodobé poptávky po penìzích. Práce využívá pøi...

Èlánek struènì shrnuje dosavadní pøístupy k odhadu parametrù a poèáteèních podmínek pro modely ve stavovém tvaru. Ukazuje možnosti využití jednotlivých metod, stejnì jako jejich výhody a nevýhody. Podrobnìji je zde zmiòována metoda maximální vìrohodnosti pro modely ve...