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...

The article provides a basic description and taxonomy of sovereign wealth funds, rapidly gaining importance in the international monetary and financial systems. SFWs are pools of assets owned and managed directly or indirectly by governments to achieve specific objectives. Tentative estimates of...

The dramatically growing disproportion between the value of corporate assets and market valuation has resulted in a well-researched schism between strategic management and financial theory. Options theory provides a potent tool to resolve this issue. We propose a model which is consistent with...

Energy, or renewable energy sources, is currently a frequently discussed topic. This paper focuses mainly on the economics of photovoltaic energy, specifically valuation of this technology. First, photovoltaic power systems are described, followed by a description of the method of analysis of...

This paper considers various options replication methods. Firstly, a specific type of barrier option, an up-and-out call, is considered. Other barrier options are briefly also described, and various types of barriers are considered. Secondly, a general definition of replication methods is...