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    题名: 資產證券化、金融中介與金融穩定
    作者: 江永裕
    贡献者: 經濟學系
    資訊租
    关键词: 資產證券化
    金融穩定
    風險
    日期: 2010~2012
    上传时间: 2010-09-06 10:00:05 (UTC+8)
    摘要: 2007年次級房貸風暴及隨後引發了一連串的金融機構倒閉事件,釀成了金融海嘯。學術界對此次金融危機有很多的討論(Allen and Carletti(2008), Brunnermeier(2008), Gorton(2008), Diamond and Rajan(2009), Gorton(2009), Krishnamurthy(2009))。其中有三個重點是本研究所關心的:第一、在資金供需的撮合方面,資產證券化(securitization)使得金融機構更容易自資本市場取得資金,加重了資本市場的角色。以市場交易為主的(market-based)的金融機構(如投資銀行及券商)的角色日益重要。Adrian and Shin(2009b) 指出商業銀行在房貸市場的重要性逐漸被以市場交易為主的金融中介機構所超越。第二、資產證券化改變了資金貸放者審核資訊的誘因。第三、金融資產經過重複的分割及再包裝,使得金融產品風險的相關資訊模糊化。由於金融機構相互持有彼此的金融商品,資訊模糊化使得交易對手風險不清楚(Allen and Carletti(2008), Brunnermeier(2009),Brunnermeier and Pedersen(2009))。本研究是一個兩年期的研究計畫。第一年建立延伸模型Boyd and de Nicoló(2005) 的模型,將上述第一及第二個特質引入模型中,分析證券化對金融機構經營行為的影響,同時研究證券化如何透過金融機構營運的改變影響資源配置的效率及全體金融體系的風險分佈。第二年則應用第一年的研究經驗,進一步分析資訊模糊化及彼此交錯的資產負債關係如何影響金融的安定性。本研究採用個體行為基礎出發的一般均衡模型,可以透過經濟體系基本參數的比較靜態分析追踪經濟基本環境變化如何影響金融的安定性。
    Many aspects of the financial crisis in year 2007 and 2008 have attracted economists’ attention (Allen and Carletti(2008), Brunnermeier(2008), Gorton(2008), Diamond and Rajan(2009), Gorton(2009), Krishnamurthy(2009)). This research plan focuses on three of them. First, securitization makes capital market play a more important role in the operation of financial institutions. Second, securitization distorts incentives for financial intermediaries (FIs) to collect information about borrowers. Third, information contained in financial derivatives is fragmented and blurry and investors cannot extract exact information about their risk. This is due to risk and returns are repeatedly split and repacked in the process of securitization. Moreover, FIs hold each other’s assets. Blurry information make it difficult to understand counter-party risk in financial transaction (Allen and Carletti(2008), Brunnermeier(2009), Brunnermeier and Pedersen(2009)). This is a two-year research plan. In the first year I will extend Boyd and de Nicoló’s model (2005) and take into account the first two above-mentioned properties to examine how securitization affects the way FIs operate their business and how these changes impact on the efficiency of resource allocations and the economy-wide distribution of risk. In the second year I will apply the experience in the first-year research to examine how blurry information and complicated risk network among FIs affect financial stability. Given our model with micro-foundation, we are able to analyze how economic primitives affect securitization and financial stability.
    显示于类别:[經濟學系暨經濟學系碩博士班] 研究計畫

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