@misc{Wrzosek_Piotr_Model_2006, author={Wrzosek, Piotr}, year={2006}, rights={Wszystkie prawa zastrzeżone (Copyright)}, description={Prace Naukowe Akademii Ekonomicznej we Wrocławiu; 2006; nr 1133, s. 592-604}, publisher={Wydawnictwo Akademii Ekonomicznej im. Oskara Langego we Wrocławiu}, language={pol}, abstract={The paper presents extended version of Markowitz model. Unlike classical model presented solution lets take into account transaction costs. This lets avoid selecting overly diversified portfolios, witch are ineffective because of high transaction costs (mainly provisions) associated with buying and selling them. The paper also includes a practical example of presented model use based on data from Warsaw Stock Exchange.}, type={artykuł}, title={Model analizy portfelowej z kosztami transakcyjnymi}, }