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Are Chinese Stock Markets Efficient? Further Evidence From A Battery Of Nonlinearity Tests

机译:中国股市有效吗?一系列非线性测试的进一步证据

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摘要

Given that the efficiency of the Chinese stock markets was empirically examined in extant literature using statistical tests that are designed to uncover linear correlations of price changes, the obtained statistical inferences of efficiency/inefficiency are on very shaky grounds as highlighted in a recent article by Saadi et al. (2006). Motivated by this concern, the present article re-examines the efficiency of the A- and B-shares markets in Shanghai and Shenzhen Stock Exchanges (SHSE and SZSE) using a battery of nonlinearity tests. The empirical investigation reveals strong evidence of nonlinear serial dependence in the underlying returns generating processes for all indices even after removing linear serial correlations from the data, hence, contradicting the unpredictable criterion of weak-form efficient market hypothesis. Theoretically, these results are not surprising given the fact that investors in the Chinese stock markets trade like noise traders, who purely speculate and treat the market like a casino.
机译:鉴于在现有文献中使用旨在揭示价格变化线性相关性的统计检验对中国股票市场的效率进行了经验检验,因此,如萨迪最近的一篇文章所强调的那样,所获得的效率/效率低下的统计推论非常不稳定。等。 (2006)。由于这种担忧,本文使用一系列非线性测试重新检验了上海和深圳证券交易所(SHSE和SZSE)的A股和B股市场的效率。实证研究表明,即使从数据中去除了线性序列相关性,所有指数的潜在收益生成过程中非线性序列依赖性的有力证据也因此与弱形式有效市场假设的不可预测标准相矛盾。从理论上讲,鉴于中国股票市场的投资者像噪音交易者那样交易,他们纯粹像投机商一样对待市场,因此这些结果并不令人惊讶。

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  • 来源
    《Applied financial economics》 |2009年第3期|p.147-155|共9页
  • 作者

    Kian-Ping Lim; Robert Brooks;

  • 作者单位

    Labuan School of International Business and Finance, Universiti Malaysia Sabah, FT Labuan, Malaysia;

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  • 原文格式 PDF
  • 正文语种 eng
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