Fuzzy Portfolio Selection Model Based on Investor's Preference
Zaisheng Zhang · Dianzi Ke-Ji Daxue xuebao. She-ke ban · 2011
In this paper,the return rates of securities are characterized as fuzzy variables rather than random variables.The average loss risk is proposed based on the credibility theory.The weighted loss risk is employed to measure the risk of portfolio and it reflects the investor's psychology well.The fuzzy portfolio selection model based on investor's preference is established.