The aim of the paper was to present two the most important valuation models of American call option. In the scientific literature such models are well known, but the way the final formulas of them are conducted are not clearly presented. The detailed analysis of relationship between variables included in the model was also shown. The added value of the paper is the “step-by-step” analytical calculation of the premium value of the Black & Scholes formula and also the way the “Greek numbers” were derived. The paper consists of four chapters in which two models of options valuation and the way of calculation of “Greek numbers” were derived.
The main purpose of this paper is to analyze the influence of debt changes on enterprises value at Warsaw Stock Exchange between 2005–2010. Several capital structure theories were presented in the first part of the paper. In the second part the empirical model was constructed based on the company and market specific data obtained from the companies financial statements and stock quotations. The most important conclusion is that the increases in companies` debt causes decreases in their market value during the time of global financial crisis. Positive impact on companies valuation have also the net earnings and market behavio
The aim of this paper is to present the local diversification of the economic development of counties in Malopolskie voivodship between 2002 and 2008 year. Authors used a set of stimulants (total sold production of industry per capita, gross value of fixed assets per capita, investment per capita and wages) and one destimulant (unemployment rate) to estimate the economic development taxonomic indicators of 22 counties in Malopolska. The results proved that Cracow and Tarnow had the highest values of the indicator. Not too far behind them were the following counties: chrzanowski, olkuski i oświęcimski oraz Nowy Sącz. Contrary to this, the lowest values of the development indicator could be observed in: proszowicki, miechowski, dąbrowski and tarnowski counties.
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