Companies with high levels of customer satisfaction tend to generate abnormal returns.

顾客满意度高可以帮助企业在股票市场上获得超额利润.

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The result suggests that significantly negative cumulative abnormal returns arise around the publication of guarantee statements.

结果发现,上市公司发布担保公告日前后出现显著为负的累积非正常报酬.

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