In the last years, mainly in the period of the financial crisis, a raising interest in behavioural finance could be observed. It has been pointed out that behavioural inclinations strongly influence the process of decision-making at capital market. The behavioural factors are understood here as...

The paper aims to analyze economic situation in Greece and in Poland with comparison to the European Union. The basis for the analysis has been made by the theory of economic convergence. The newest statistical data concerning GDP per inhabitant were used in the study. In the analysed countries...

The concept of causality formulated in 1969 by C.W.J. Granger is mostly popular in the econometric literature. The central assumption of the concept is the fact that the cause precedes the effect and can help in forecasting the effect. Years of application of Granger causality idea have resulted...

In the paper we argue that a general formula for the unconditional kurtosis of sign-switching GARCH(p,q,k) processes proposed by Thavaneswaran and Appadoo (2006) does not give correct results. To show that we revised the original theorem given by Thavaneswaran and Appadoo (2006) for the special...

After Black and Scholes’s groundbreaking work, the literature concerning pricing options has become a very important area of research. Numerous option valuation methods have been developed. This paper shows how one can compute option prices using Sign RCA-GARCH models for the dynamics of the...