豁免融券賣出不得低於前一營業日收盤價對市場品質之影響-以臺灣50指數成分股為例; The Impacts of Permitting Short Sale under Last Trade Price of Taiwan 50 Index Constituents on Market Quality

NCUIR > School of Management at National Central University > Executive Master of Finance Management > Electronic Thesis & Dissertation > Item 987654321/12242

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/12242

Title:	豁免融券賣出不得低於前一營業日收盤價對市場品質之影響-以臺灣50指數成分股為例;The Impacts of Permitting Short Sale under Last Trade Price of Taiwan 50 Index Constituents on Market Quality
Authors:	柯如鳳;Ju-feng Ko
Contributors:	財務金融學系碩士在職專班
Keywords:	平盤下放空;市場品質;臺灣50指數;short sale below the last closing price;market quality;Taiwan 50 Index
Date:	2007-07-03
Issue Date:	2009-09-22 14:43:17 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	本研究衡量2005年5月16日豁免臺灣50指數成分股融券賣出不得低於前一日收盤價格限制後，全樣本、產業及公司規模等之波動性、流動性及訂價誤差。實施後，全體樣本波動性顯著變小，證券金融保險、其他類股及公司規模大之波動性亦顯著變小，流動性部分，無論全體樣本、公司規模大小、產業類別，流動性皆增加；全體樣本、電子資訊及公司規模大之流動性增加具顯著性。訂價誤差部份，全體樣本及不分公司規模實施前股價皆充分反映訊息，實施後，全體樣本、電子資訊類股及公司規模小者，有顯著超漲超跌。 The authorities waived the restriction of short sale below the last closing price for the compositions of Taiwan 50 Index on May 16, 2007. We try to analyze the effects of waiving restriction by testing the characteristics of volatility, liquidity, and pricing error. After waiving, the volatilities are significantly becoming heavier for the whole samples and the sub-groups of financial sector or with larger market capital. The liquidities are becoming better for the whole samples and all sub-groups no matter what kind of grouping, in which the whole samples and sub-groups of IT sector or with larger market capital are with 99% significance levels. For pricing error, the market prices of the whole samples and the sub-groups classified by market capital had reflected public information enough. After waiving, the whole samples and the sub-groups of IT sector or with smaller market capital have significantly over reflected the public information.
Appears in Collections:	[Executive Master of Finance Management] Electronic Thesis & Dissertation

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