Magdalena, Zaleczna; Rafał, Wolski - In: Folia Oeconomica Stetinensia 9 (2010) 1, pp. 151-166
The pension fund investments should be characterised by a long term, low risk and profitability, which implicates the necessity of portfolio diversification. In general, pension funds having regular long-term contributions should develop the long-term policy and its effects would be responsible...