【正文】
須避免VaR給人過分精確的印象。觀察家們將風(fēng)險(xiǎn)管理稱為‘科學(xué)’,是對這一職業(yè)的傷害,風(fēng)險(xiǎn)管理更多的是藝術(shù) ,而不是科學(xué)” 風(fēng)險(xiǎn)的度量是對未來風(fēng)險(xiǎn)的度量,風(fēng)險(xiǎn)在很大程度上就是人們的一種心理感受,我們的度量模型建立在一定的預(yù)期和風(fēng)險(xiǎn)偏好的基礎(chǔ)之上是很合理的。隨著未來人們對金融市場認(rèn)識(shí)的深入,金融理論的發(fā)展,市場機(jī)制的健全,可能會(huì)有更好的數(shù)量模型來預(yù)測、 等主觀參數(shù)。但在現(xiàn)階段我們還必須重視管理者的經(jīng)驗(yàn),一個(gè)優(yōu)秀管理者審時(shí)度勢的能力往往不是一個(gè)數(shù)學(xué)模型可以替代的。為了克服決策者過度自信的傾向,減少模型的主觀隨意性,我們可以在風(fēng)險(xiǎn)決策制度上制定某些規(guī)則加以約束,比如和的設(shè)定超出某個(gè)范圍時(shí)要經(jīng)過專家小組的集體決策,運(yùn)用歷史數(shù)據(jù)法和情景模擬法對資產(chǎn)收益率進(jìn)行預(yù)期來設(shè)置和。本文提出的基于Copula的行為投資組合的風(fēng)險(xiǎn)管理方法,在實(shí)際的風(fēng)險(xiǎn)管理中,也具有一定的實(shí)用性。參考文獻(xiàn)[1] Shefrin H, Statman M: Behavioral portfolio theory [J]. Journal of Financial and Quantitative Analysis, 2000, 35(2): 127151[2] Barberis , N. and A. Shleifer: Style Investing [J]. Journal of Financial Economics , 2003: 68 , 161 199.[3] U. Cherubini , and W. Vecchiato : Copula Method in Finance[M]. John Wiley amp。 Sons,Ltd :68,171 [4] 菲利普喬瑞;陳鐵等譯:風(fēng)險(xiǎn)價(jià)值VaR[M].中信出版社,2003: 44Risk Measurement and Management of Investment Funds Based on Investor’s Prospect and Risk PreferencePing Li,Yang Lu School of Economics and Management ,Beihang University, Beijing ,100083 ,ChinaAbstract: This paper ,considering the present situation of investment fund risk management and the shorting of VaR when applying in China ,suggests some improvements for VaR calculating based on Shefrin and Statman39。s behavioral portfolio theory and copula function, adding some subjective parametes which reflect investor39。s prospect and risk that the risk measurement is built on the basis of “new 3P”(Probability, Prospect, Preference).In addition ,we propose a behavioral portfolio risk management method based on copula function.Key words: VaR;fund risk management;mental accounting;Copula7 / 7