Chung-Hua University Repository:Item 987654321/28742
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    CHUR > College of Management > Department of Finance > Seminar Papers >  Item 987654321/28742


    Please use this identifier to cite or link to this item: http://chur.chu.edu.tw/handle/987654321/28742


    Title: 動態貝它值估計模型之研究-台灣股票市場電子產業之實證
    Authors: 李愷莉
    Li, Kai-Li
    Contributors: 財務管理學系
    Finance
    Keywords: 動態貝它值;多變量一般自我迴歸條件異質變異數模型;卡爾曼濾嘴模型
    time-varying beta;M-GARCH;Kalman Filter
    Date: 2009
    Issue Date: 2014-06-27 00:07:34 (UTC+8)
    Abstract: 證券之系統風險通常以貝它值(β)衡量,它代表著單一證券或資產相對於市場波動性的變
    動幅度,由於證券的個別風險可藉由多樣化投資而分散,因此學界或業界對系統風險的管理相
    當重視。Sharpe(1963)、Lintner(1965)及Mossin(1966)等人的市場模型基本上將貝它值視為常
    數,但許多實證研究發現股票報酬率的風險實際上隨著時間不斷改變,因為金融市場外在環境
    的變動與公司經營等內在因素,均使得公司管理者不斷調整其經營策略,因此將證券的貝它值
    視為動態較為恰當。為準確地捕捉系統風險隨時間變動的趨勢
    Appears in Collections:[Department of Finance] Seminar Papers

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