《Table 9Robustness check of main tests:Other measurements of corporate integrity indicators.》

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《Does corporate integrity improve the quality of internal control》

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Note:***，**and*indicate significance at the 1%，5%and 10%levels，respectively（two-tailed test）.

Concerning the empirical test，column（1）in Table 8 shows the results of the first stage of the regression，and columns（2）–（6）give the regression results for Hypotheses 1–3 in the second stage.In the first stage，the blood donation rate（Blood）is significant at the 1%level.In the second stage，the integrity of the enterprise（Integrity）is significant at the 1%level，which verifies Hypothesis 1.Concerning Hypotheses 2 and 3，the negative correlation between corporate integrity（Integrity）and internal control weakness（IC＿Dum）is more significant in the samples with weaker legal systems and lower market competition.In general，the regression results of using instrumental variables are consistent with the conclusions from previous research.