@misc{Mazurek_Edyta_The_2014,
 author={Mazurek, Edyta},
 identifier={DOI: 10.15611/amse.2014.17.21},
 address={Wrocław},
 access={Dla wszystkich w zakresie dozwolonego użytku},
 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)},
 type={materiały konferencyjne},
 title={The Income Tax Progression Depending on Social Insurance Contributions in Poland},
 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},
}