@misc{Mazurek_Edyta_The_2014, author={Mazurek, Edyta}, identifier={DOI: 10.15611/amse.2014.17.21}, access={Dla wszystkich w zakresie dozwolonego użytku}, address={Wrocław}, year={2014}, language={eng}, abstract={17-th AMSE. Applications of Mathematics in Economics. International Scientific Conference: Poland, 27-31 Agust, 2014. Conference Proceedings Full Text Papers. The International Scientific Conferences "Applications of Mathematics and Statistics in Economics" are organized each year by three Departments of three Universities from three countries - University of Economics, Prague (Czech Republic), Matej Bel University in Banská Bystrica (Slovakia) and Wrocław University of Economics (Poland)}, title={The Income Tax Progression Depending on Social Insurance Contributions in Poland}, type={materiały konferencyjne}, contributor={Zmyślona, Beata. Redakcja}, contributor={Rusnak, Zofia. Redakcja}, rights={Wszystkie prawa zastrzeżone (Copyright)}, publisher={Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu}, keywords={personal income tax, statutory tax rate, tax-free income, social insurance system and the progressivity index}, }