dc.contributor.advisor | 蔡政憲 | zh_TW |
dc.contributor.author (Authors) | 吳明遠 | zh_TW |
dc.creator (作者) | 吳明遠 | zh_TW |
dc.date (日期) | 2005 | en_US |
dc.date.accessioned | 14-Sep-2009 09:40:36 (UTC+8) | - |
dc.date.available | 14-Sep-2009 09:40:36 (UTC+8) | - |
dc.date.issued (上傳時間) | 14-Sep-2009 09:40:36 (UTC+8) | - |
dc.identifier (Other Identifiers) | G0093358017 | en_US |
dc.identifier.uri (URI) | https://nccur.lib.nccu.edu.tw/handle/140.119/31269 | - |
dc.description (描述) | 碩士 | zh_TW |
dc.description (描述) | 國立政治大學 | zh_TW |
dc.description (描述) | 風險管理與保險研究所 | zh_TW |
dc.description (描述) | 9338017 | zh_TW |
dc.description (描述) | 94 | zh_TW |
dc.description.abstract (摘要) | 本文所使用信用風險評價模型為KMV公司用以衡量未上市公司之違約風險的PFM模型(Private Firms Model),主要的研究標的為美國未上市產險公司。此模型最主要的目的在求出公司的資產市值及資產市值報酬率波動度,並假設資產市值的變動遵循標準幾何布朗運動,因此在產險公司的資產市值小於某值後,該公司即算違約,其中資產市值平均與該值的距離稱為違約距離。而未上市產險公司缺少股價資訊,因此無法用一般的選擇權評價公式求得資產市值及資產市值報酬率波動度,所以先使用可以衡量上市產險公司資產市值的KMV模型(Moody`s KMV EDF□),找出上市公司的資產市值及資產市值報酬率波動度,再找出財務比率與兩者的關係,最後再將這層關係套用到未上市產險公司,如此可以求得未上市產險公司之資產市值及資產市值報酬率波動度。 本文經過實證研究過後,發現套用從1991年到2000年上市產險公司資料中找出的關係,代入2000年的未上市產險公司資料來預測公司於2001年是否違約,其結果發現準確度並不高;接著且再以違約距離和少部份財務變數做為預測模型,代入2001年資料,以預測2002年未上市產險公司的違約與否,其準確率也與先前相近,兩者的解釋能力約都只有六成到七成,雖然如此,還是可以發現違約距離在解釋能力上還是有一定之貢獻,如果可以將違約的樣本群數量□加,應該可以提升預測的準確度。 | zh_TW |
dc.description.abstract (摘要) | This theme is to measure the default probabilities of private P&C firms’ default in the U.S A. The model this paper used is called PFM (Private Firms Model). The asset value and asset volatility could be found by this model, but we must assume that the asset value will follow General Brownian Motion. After finding asset value and asset volatility, the next step is to find the default point. The distance between the expected asset value and the default point is DD (Distance to Default). However, the private P&C firms lack the relative stock information, so the Black-Scholes Option Pricing Model couldn’t be used. In order to find the relationship between the private firms’ asset value and asset volatility, we can use Moody`s KMV EDF□ (Expected Default Frequency) credit risk pricing model to measure the public P&C firms’ asset value and its volatility and find the relationship between those and firms’ financial ratios. Using the public firms’ relationship on private firms, the distance to default of the private firms can be found. Through the empirical research, the correct rate of this model on the private P&C firms in the U.S.A is low. Besides, let DD and other financial ratios be the variables to forecast the next year, the correct rate is still low, but we can find that DD’s ability to explain the default probability is 60~70%. Therefore, we can say DD is still the useful variable and if the sample size of default firm can be increase, the correct rate may be promoted. | en_US |
dc.description.tableofcontents | 第一章 緒論....................................................2 第一節 研究動機..............................................2 第二節 研究對象與限制........................................3 第三節 研究流程..............................................5 第二章 信用風險衡量模型........................................6 第一節 傳統授信系統..........................................6 第二節 會計基礎信用評分系統..................................6 第三節 新式信用風險評價方法..................................9 第三章 研究方法...............................................12 第一節 KMV模型..............................................13 第二節 PFM模型..............................................18 第三節 PFM模型檢驗方法......................................21 第四章 實證結果...............................................23 第一節 上市產險公司基本敘述統計.............................23 第二節 估算出上市公司資產市值及其報酬率波動度並找出迴歸式...24 第三節 求算未上市產公司之違約點、違約距離...................33 第四節 PFM模型檢驗結果......................................35 第五章 結論與建議.............................................44 第一節 結論.................................................44 第二節 建議.................................................44 參考文獻:....................................................46 附錄..........................................................48 | zh_TW |
dc.language.iso | en_US | - |
dc.source.uri (資料來源) | http://thesis.lib.nccu.edu.tw/record/#G0093358017 | en_US |
dc.subject (關鍵詞) | 信用風險 | zh_TW |
dc.subject (關鍵詞) | 違約風險 | zh_TW |
dc.subject (關鍵詞) | 美國產險公司 | zh_TW |
dc.subject (關鍵詞) | 未上市公司 | zh_TW |
dc.subject (關鍵詞) | 保險公司違約 | zh_TW |
dc.subject (關鍵詞) | PFM | en_US |
dc.subject (關鍵詞) | KMV | en_US |
dc.subject (關鍵詞) | Credit Risk | en_US |
dc.subject (關鍵詞) | Distance to default | en_US |
dc.subject (關鍵詞) | Private Firms Model | en_US |
dc.title (題名) | 美國未上市產險公司違約風險預測-以KMV公司之PFM模型為例 | zh_TW |
dc.type (資料類型) | thesis | en |
dc.relation.reference (參考文獻) | 中文 | zh_TW |
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