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 theory 'corporate social responsibility' (CSR) is characterized in the paper. The paper expresses the authors' opinion, that CSR as a mere proclamation of necessity of the firms' ethic behavior does not enforce this into praxis. The internal economic motivation to CSR it is the necessary...

Three original microeconomic models of an externality market are described: (1) model of the marketable permits for exhalations emission, (2) model of optimal financial satisfaction of a damage caused by a negative externality in the economy with agents maximizing probability of their survival...

The theory of endogenous money supply forms one of the cornerstones of Post Keynesian economics. It has been developing rapidly during the last twenty years, but is still neglected as a theoretical background for practical central bank policy. This may be (among other reasons) due to the...

The paper reviews (in Czech) the main qualitative tools applied by (micro)economic analysis and surveys the main literature on the topic. Economics is often being criticised by its opponents for the use of unrealistic assumptions. On the contrary, my claim is that if economics has anything to...