首页> 外文期刊>International Review of Economics and Finance >Stock exchange mergers and weak form of market efficiency: The case of Euronext Lisbon
【24h】

Stock exchange mergers and weak form of market efficiency: The case of Euronext Lisbon

机译:证券交易所合并和市场效率低下:以泛欧交易所里斯本为例

获取原文
获取原文并翻译 | 示例
           

摘要

This exploratory paper is among the first to examine the impact of stock exchange mergers on informational market efficiency. We focus on the merger of Bolsa de Valores de Lisboa e Porto (Portuguese Stock Exchange) with Euronext in 2002 (that created Euronext Lisbon). To investigate this question we perform numerous statistical tests: serial correlation test (ACF test), runs test, unit root test (Kwiatkowski, Philips, Schmidt, & Shin, 1992), multiple variance ratio test (Chow & Denning, 1993) and ranks and signs test (Wright, 2000). The results indicate that the Portuguese Equity Market is inefficient in weak form during pre-merger period implying that investors possessed an opportunity to earn abnormal returns though small in magnitude. The results, sensitive to the methodology used, indicate a mixed evidence of improvement in market efficiency during the post-merger period. Although the findings are mixed, yet most tests show a tendency of improved efficiency.
机译:该探索性论文是最早研究证券交易所合并对信息市场效率的影响的论文之一。我们专注于2002年葡萄牙里斯本证券交易所(Bolsa de Valores de Lisboa e Porto)与泛欧交易所(Euronext)的合并(创建了泛欧交易所里斯本)。为了调查这个问题,我们执行了许多统计检验:序列相关检验(ACF检验),运行检验,单位根检验(Kwiatkowski,Philips,Schmidt和Shin,1992),多重方差比检验(Chow&Denning,1993)和等级和标志测试(Wright,2000年)。结果表明,葡萄牙股票市场在合并前期间处于弱势状态,效率低下,这意味着尽管规模较小,但投资者仍有机会获得超额收益。该结果对所使用的方法敏感,表明在合并后期间市场效率有所改善的证据不一。尽管发现的结果参差不齐,但是大多数测试都显示出效率提高的趋势。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号