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  • 期刊

實施SPAN保證金計收制度對台灣期貨市場品質的影響

The Effects of SPAN Margins System on Futures Market Liquidity, Volatility and Price Efficiency: The Case of Taiwan

摘要


台灣期交所於2007年10月開始採用美國芝加哥商業交易所所推出的SPAN系統作為其保證金計算之系統,以期能準確地估算交易者的部位風險。本研究探討實施SPAN制度對期貨市場交易之流動性、波動性及價格效率性的影響。我們以台指期貨與小台指期貨契約為樣本,為考慮變數間的內生性問題,採用Chou and Wang(2006)所提出的結構方程式模型,實證結果發現實施SPAN保證金計收制度會使台指和小台指期貨的交易量較實施前增加、有效價差較實施前縮小,但價格波動亦較實施前增加;在市場效率性方面,發現實施SPAN制度後會促進期貨市場的價格效率。總體而言,更為精確的保證金計收制度會增加期貨市場的流動性、提高市場深度,並改善市場之價格效率性,但同時也會增加價格波動性。

並列摘要


This paper examines the impact of SPAN margins system, which was adopted by the Taiwan Futures Exchange in October 2007, on market performances. In this study, we use the three-equation structural proposed by Chou and Wang (2006) to test the impact of SPAN margins system on the liquidity, market depth, volatility and price efficiency of the Taiwan futures market. Our findings suggest that a more precise margins system improves the market liquidity and price efficiency while it increases price volatility.

參考文獻


黃玉娟、陳培林、鄭堯任(2007)。交易機制改變對市場績效之影響:透明度與撮合頻率之探討。證券市場發展季刊。19(1),135-160。
Adrangi, B.,Chatrath, A.(1999).Margin Requirements and Futures Activity: Evidence from the Soybean and Corn Markets.Journal of Futures Markets.19(4),433-455.
Amihud, Y.(2002).Illiquidity and Stock Returns: Cross-section and Time Series Effects.Journal of Financial Markets.5(1),31-56.
Andersen, T.,Bollerslev, T.,Diebold, F.,Ebens, H.(2001).The Distribution of Realized Stock Return Volatility.Journal of Financial Economics.61(1),43-76.
Brorsen, B. W.(1991).Futures Trading, Transaction Costs, and Stock Market Volatility.Journal of Futures Markets.11(2),153-163.

被引用紀錄


謝家瑋(2015)。實施現股當日沖銷制度對臺灣股票市場品質之影響〔碩士論文,淡江大學〕。華藝線上圖書館。https://doi.org/10.6846/TKU.2015.00481

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