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    政大機構典藏 > 商學院 > 財務管理學系 > 期刊論文 >  Item 140.119/117550
    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/117550

    Title: Do the Pure Martingale and Joint Normality Hypotheses Hold for Futures Contracts? Implications for the Optimal Hedge Ratios
    Authors: 陳聖賢
    Chen, Sheng-Syan
    Lee, Cheng-few
    Shrestha, Keshab
    Contributors: 財管系
    Keywords: Hedge ratio;Pure martingale hypothesis;Joint normality hypothesis
    Date: 2008
    Issue Date: 2018-06-11 17:19:42 (UTC+8)
    Abstract: It is well known that the optimal hedge ratios derived based on the mean-variance approach, the expected utility maximizing approach, the mean extended-Gini approach, and the generalized semivariance approach will all converge to the minimum-variance hedge ratio if the futures price follows a pure martingale process and if the spot and futures returns are jointly normal. In this paper, we perform empirical tests to see if the pure martingale and joint normality hypotheses hold using 25 different futures contracts and five different hedging horizons. Our results indicate that the pure martingale hypothesis holds for all commodities and all hedging horizons except for three stock index futures contracts. As for joint normality, we propose two new tests based on the generalized method of moments, which allow for calculating multivariate test statistics that take account of the contemporaneous correlation across spot and futures returns. Our findings show that the joint normality hypothesis generally does not hold except for a few contracts and relatively long hedging horizons.
    Relation: Quarterly Review of Economics and Finance, Vol.48, No.1, pp.153-174
    Data Type: article
    DOI 連結: http://dx.doi.org/10.1016/j.qref.2005.10.002
    DOI: 10.1016/j.qref.2005.10.002
    Appears in Collections:[財務管理學系] 期刊論文

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