陳模型
在金融學領域,陳琳模型(Chen model)是一個數學模型,描述利率的動態演變過程。它是一種「三因素模型」(短期利率模型),因為它所描述的利率變動是由三種市場風險推動的。陳琳模型是第一個隨機均值和隨機波動率的利率模型,由經濟學家陳琳發表於1994年。陳琳是哈佛大學畢業的經濟學家,曾為美國哈佛大學,新加坡大學,貝魯特美國大學,韓國延世大學,瑞士金融學院,美林證券,里昂信貸銀行和美國聯邦儲備局工作。
在陳琳模型中,瞬時利率的演變是由以下隨機微分方程決定的:
陳琳模型被全球金融機構廣泛採用, 它不但具有實際意義, 同時也具有重要的學術價值。在一份權威的現代金融學文獻述評中(「金融學的連續時間方法:回顧與評價」 [1]),陳琳模型被列為利率期限結構的主要模型。美國學者詹姆斯和韋伯的教科書有幾節專門討論陳琳模型。瑞士學者吉布森等人的利率理論綜述也有專門一節介紹陳琳模型。丹麥學者安德森等人的文章專門致力於研究、評估和推廣陳琳模型。美國學者伽倫等人的文章測試和驗證了陳琳模型和其他利率模型。 美國博士生蔡在她的博士論文研究中測試陳琳模型和其他競爭模型。
相關條目
參看
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- Lin Chen. Stochastic Mean and Stochastic Volatility — A Three-Factor Model of the Term Structure of Interest Rates and Its Application to the Pricing of Interest Rate Derivatives. Financial Markets, Institutions, and Instruments. 1996, 5: 1–88.
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