Maj, Przemysław2015-05-202015-05-2020141732-9639http://repozytorium.ur.edu.pl/handle/item/953The author presented the determinants of rivalry between PO and PiS. The analysis covered the genesis of both parties, existing and new socio-political divisions created by the parties; party memberships; differences in strategy and paradigms, and the differences of party programmes.polUznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polskahttp://creativecommons.org/licenses/by-nc-nd/3.0/pl/Civic PlatformLaw and Justicepolitical competitionPolish political partiesarticle