This work discusses potential pitfalls of applying linear regression models for explaining the relationship between spot and futures prices in electricity markets, in particular, the bias coming from the simultaneity problem, the effect of correlated measurement errors and the impact of...

Recently, Nowotarski et al. (2013) have found that wavelet-based models for the long-term seasonal component (LTSC) are not only better in extracting the LTSC from a series of spot electricity prices but also significantly more accurate in terms of forecasting these prices up to a year ahead...

We present the concept of financial transaction tax (Tobin tax, FTT) and describe its potential consequences. We analyse the relation between transaction costs and volatility of prices by presenting empirical evidence from Warsaw Stock Exchange and exploiting the natural experiment of varying...

Digitization and automation are thought to be transforming the economy, but evidence on their adoption and impact is limited. This paper analyzes determinants and effects of firms' investment in these technologies using administrative data from Germany. The main result is that while technology...

Polish Abstract: Praca zawiera przegląd istniejącej literatury na temat podatku od transakcji finansowych oraz badanie empiryczne dot. wpływu wzrostu minimalnej dokładności określania ceny na zmienność cen na GPW w Warszawie. Rozpoczynam od prezentacji motywacji do wprowadzenia podatku...