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Equity market volatility using garch models- evidence from Pakistan stock exchange (kse-100 index)

机译:使用Garch模型的股票市场波动-巴基斯坦证券交易所的证据(KSE-100指数)

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Purpose – The purpose of this paper is to investigate the cluster volatility of return distribution in the Pakistan Stock exchange (PSX) formerly named Karachi stock exchange (KSE-100 Index). GARCH model for characterizing financial market volatility is discussed. Design/methodology/approach –This study used daily time series of the market index PSX (KSE-100) data over the period from January 1st, 2008 to December 31st, 2015, 1983 observations have been collected from KSE website.ARCH family models have been used, such as GARCH, EGARCH, PGARCH and TARCH models, to estimate cluster volatility. SIC, AIC, and Log likelihood have been used to select the appropriate model. Findings – GARCH 1,1 model is found the most appropriate model among ARCH family models. The outcome of this study indicates that the Pakistan Stock Exchange is weak-form efficient and explains cluster volatility and leptokurtic distribution. Research limitations/implications – Re-composing of Karachi stock exchange 100 index. Practical implications – Stock market returns' behavior changes according to daily basis available information, which is helpful for the investors to maximize their portfolio's return and managing the risk. Originality/value – Karachi stock market (KSE-100 Index) volatility from 2011 to 2015.
机译:目的–本文的目的是调查巴基斯坦证券交易所(PSX)(原名卡拉奇证券交易所,KSE-100指数)中收益分布的集群波动性。讨论了表征金融市场波动的GARCH模型。设计/方法/方法-这项研究使用了从2008年1月1日到2015年12月31日这段时间的市场指数PSX(KSE-100)数据的每日时间序列,该数据是从KSE网站上收集的。ARCH系列模型具有可以使用诸如GARCH,EGARCH,PGARCH和TARCH模型之类的方法来估计集群波动率。 SIC,AIC和对数似然已用于选择合适的模型。结果– GARCH 1,1模型被认为是ARCH系列模型中最合适的模型。这项研究的结果表明,巴基斯坦证券交易所是弱形式的,并且可以解释集群的波动性和瘦小概率分布。研究的局限性/意义–重组卡拉奇证券交易所100指数。实际意义–股市收益的行为会根据每日可用的信息而变化,这有助于投资者最大化其投资组合的收益并管理风险。原创性/价值–卡拉奇股市(KSE-100指数)从2011年到2015年的波动。

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