dc.contributor.advisor | 饒秀華 | zh_TW |
dc.contributor.advisor | Rau,Hsiu Hau | en_US |
dc.contributor.author (Authors) | 吳旻容 | zh_TW |
dc.contributor.author (Authors) | Wu, Min Jung | en_US |
dc.creator (作者) | 吳旻容 | zh_TW |
dc.creator (作者) | Wu, Min Jung | en_US |
dc.date (日期) | 2007 | en_US |
dc.date.accessioned | 18-Sep-2009 14:14:27 (UTC+8) | - |
dc.date.available | 18-Sep-2009 14:14:27 (UTC+8) | - |
dc.date.issued (上傳時間) | 18-Sep-2009 14:14:27 (UTC+8) | - |
dc.identifier (Other Identifiers) | G0095351021 | en_US |
dc.identifier.uri (URI) | https://nccur.lib.nccu.edu.tw/handle/140.119/35133 | - |
dc.description (描述) | 碩士 | zh_TW |
dc.description (描述) | 國立政治大學 | zh_TW |
dc.description (描述) | 國際經營與貿易研究所 | zh_TW |
dc.description (描述) | 95351021 | zh_TW |
dc.description (描述) | 96 | zh_TW |
dc.description.abstract (摘要) | 本研究使用相關係數隨時間變動的雙變量GARCH(1,1)模型(time-varying correlation bivariate GARCH(1,1) model),討論台灣股票市場中,大公司與小公司之間的報酬、衝擊(shock)、波動(volatility)是否互為影響為主軸。其次,為了了解不同估計方法、相關係數的設定和解釋變數對結果造成的影響,亦設立了3種模型,作為本研究的比較模型。本研究發現大公司與小公司過去的報酬,存在雙向的報酬外溢效果。換句話說,大公司與小公司過去的報酬分別都對「本身報酬」有影響外,對「對方的報酬」也有影響。進一步發現到:大公司過去受到的衝擊和波動不僅對本身的條件變異數造成影響,也影響到小公司的條件變異數。但相反地,小公司過去受到的衝擊和波動,只對本身的條件變異數有影響,對大公司的條件變異數沒有影響,所以大、小公司間的衝擊外溢效果和波動外溢效果有不對稱的現象。從不同模型之比較也發現,在討論大公司與小公司的報酬及波動時,應重視兩者彼此相互影響的關係,在估計時使用多變量的方法,以捕捉彼此相依的條件共變異數及條件變異數之動態過程。除此之外,也應考量兩者的相關係數隨時間變動的特性,及過去的波動對描述對方條件變異數的重要性。關鍵字:多變量、GARCH模型、波動性、外溢效果、不對稱性 | zh_TW |
dc.description.tableofcontents | 目錄1.緒論…………………………………………………………………………….62.文獻探討……………………………………………………………………….73.研究方法……………………………………………………………………….143.1單變量GARCH(1,1)模型─[模型1]:單變量GARCH(1,1)模型…………………………………….153.2多變量GARCH(1,1)模型…………………………………………………..193.2.1[模型2]:雙變量GARCH(1,1)模型─相關係數為固定常數………193.2.2[主要模型]:雙變量GARCH(1,1)模型─相關係數隨時間變動…...233.2.3[模型3]:雙變量GARCH(1,1)模型─相關係數隨時間變動………24(沒有考慮波動外溢效果)4.觀察資料說明………………………………………………………………….264.1使用資料……………………………………………………………………264.2敘述性統計量及資料特性…………………………………………………265.實證結果……………………………………………………………………….305.1變數篩選……………………………………………………………………305.2模型檢查……………………………………………………………………325.3外溢效果……………………………………………………………………336.結論…………………………………………………………………………….42參考文獻…………………………………………………………………………43表目錄表1:本研究與過去相關研究的比較…………………………………………12表2:本研究使用的模型………………………………………………………15表3:使用資料之敘述性統計量………………………………………………27表4:使用資料之單根檢定……………………………………………………30表5:使用資料在AR(p)模型,p=0~10時的AIC值…………………………..31表6:使用資料在AR(4)模型時的係數估計………………………………….32表7:[模型1]、[模型2]、[主要模型]、[模型3]的模型檢查……………….33表8:[模型1]的估計結果……………………………………………………...34表9:[模型2]的估計結果……………………………………………………...36表10:[主要模型]的估計結果…………………………………………………38表11:[模型3]的估計結果…………………………………………………….40表12:本研究使用模型的實證結果…………………………………………..41圖目錄圖1:大公司與小公司的日報酬率取自然對數之後的樣本相關係數………...22圖2:TWN50日報酬率取自然對數的ACF和PACF………………………….28圖3:TM100日報酬率取自然對數的ACF和PACF…………………………..29 | zh_TW |
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dc.language.iso | en_US | - |
dc.source.uri (資料來源) | http://thesis.lib.nccu.edu.tw/record/#G0095351021 | en_US |
dc.subject (關鍵詞) | 多變量 | zh_TW |
dc.subject (關鍵詞) | GARCH模型 | zh_TW |
dc.subject (關鍵詞) | 波動性 | zh_TW |
dc.subject (關鍵詞) | 外溢效果 | zh_TW |
dc.subject (關鍵詞) | 不對稱性 | zh_TW |
dc.subject (關鍵詞) | multivariate | en_US |
dc.subject (關鍵詞) | GARCH model | en_US |
dc.subject (關鍵詞) | volatility | en_US |
dc.subject (關鍵詞) | spillover effect | en_US |
dc.subject (關鍵詞) | asymmetry | en_US |
dc.title (題名) | 台灣股市的波動外溢效果之研究 | zh_TW |
dc.type (資料類型) | thesis | en |
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