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The impact of economic policy uncertainty on M&A performance was examined. Taking the M&A data of A-share listed companies from 2007 to 2023 as the study sample, it is found that the impact is negative and statistically significant, and the moderating effect factor investor sentiment exacerbates this impact. Further analysis shows that during economic upturns, economic policy uncertainty has the greater significant negative effect on M&A performance compared with the economic downturns. The similar condition happens in the enterprises with non-concentrated institutional investor holdings. But economic policy uncertainty does not seem to influence the M&A performance of the enterprises with green M&A type or located in first-tier or new first-tier cities.
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基于A股2007—2023年上市公司并购数据进行实证分析,探究经济政策不确定性对于企业并购绩效的影响机理。结果表明,经济政策不确定性对于企业并购绩效产生负面影响,并在纳入投资者情绪调节因子后显著增强负面效应。进一步研究发现,经济政策不确定性对于企业并购绩效的影响在经济上行时期更为显著,且对于非机构投资者集中持股的企业产生更大的冲击,但该机制对绿色并购以及属于一线或新一线城市的企业影响较小。
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陈振彪(1997—),男,广东湛江人,硕士,中级经济师,研究方向为金融经济学、金融工程与风险管理。
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陈振彪(1997—),男,广东湛江人,硕士,中级经济师,研究方向为金融经济学、金融工程与风险管理。
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陈振彪(1997—),男,广东湛江人,硕士,中级经济师,研究方向为金融经济学、金融工程与风险管理。
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2019(2): 174-192., articleTitle=媒体压力下的绿色并购能否促使重污染企业实现实质性转型, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1208083787091645351, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, xref=null, ext=[AuthorCompanyExt(id=1208083787100033960, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, companyId=1208083787091645351, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Risk management and compliance Department, Guangzhou Development District Holdings Group Co.Ltd., Guangzhou 510663, China), AuthorCompanyExt(id=1208083787112616875, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, companyId=1208083787091645351, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=广州开发区控股集团有限公司风控合规部, 广州 510663)])], figs=[ArticleFig(id=1208083788362518546, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=J2uNNoxconRRwCm1VtSG/Q==, figureFileBig=UhxG+8eQldiwqYlj9k+OHw==, tableContent=null), ArticleFig(id=1208083788521902110, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=图1, caption=
2007—2024年A股上市企业并购情况, figureFileSmall=J2uNNoxconRRwCm1VtSG/Q==, figureFileBig=UhxG+8eQldiwqYlj9k+OHw==, tableContent=null), ArticleFig(id=1208083788643536937, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=+O74/VgZp3iLsuSiPWyARw==, figureFileBig=Y2zvn3mWBAi0xvGWegjx1g==, tableContent=null), ArticleFig(id=1208083788748394547, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=图2, caption=
2007—2023年投资者情绪与中国经济政策不确定性指数, figureFileSmall=+O74/VgZp3iLsuSiPWyARw==, figureFileBig=Y2zvn3mWBAi0xvGWegjx1g==, tableContent=null), ArticleFig(id=1208083789570478142, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 样本量 | 平均值 | 标准差 | 最小值 | 中位数 | 最大值 | 说明 |
| CAR | 15 795 | 1.552 9 | 9.876 1 | -25.254 7 | 0.165 1 | 35.330 5 | % |
| CNEPU | 201 | 142.061 4 | 30.425 2 | 73.619 7 | 138.798 2 | 238.317 2 | - |
| ISI | 201 | 60.329 6 | 27.858 0 | 29.810 0 | 53.810 0 | 218.960 0 | - |
| size | 11 954 | 22.265 2 | 1.294 7 | 18.265 9 | 22.081 3 | 28.109 2 | LN,元 |
| ROE | 11 954 | 7.129 8 | 11.493 4 | -98.732 2 | 7.466 1 | 78.127 5 | % |
| TobinQ | 11 954 | 2.092 3 | 1.740 8 | 0.633 8 | 1.632 8 | 58.591 8 | - |
| CFO | 11 954 | 4.584 9 | 7.693 3 | -67.022 5 | 4.565 7 | 72.554 0 | % |
| ALR | 11 954 | 44.839 3 | 20.179 8 | 0.752 1 | 44.846 2 | 175.835 4 | % |
| MBIRI | 11 954 | 0.305 3 | 1.929 3 | -0.999 1 | 0.146 0 | 87.483 7 | % |
| M2 | 201 | 13.972 3 | 0.599 2 | 12.753 0 | 14.063 0 | 14.870 9 | LN,亿元 |
), ArticleFig(id=1208083789805359176, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表1, caption=
变量描述性统计
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| 变量 | 样本量 | 平均值 | 标准差 | 最小值 | 中位数 | 最大值 | 说明 |
| CAR | 15 795 | 1.552 9 | 9.876 1 | -25.254 7 | 0.165 1 | 35.330 5 | % |
| CNEPU | 201 | 142.061 4 | 30.425 2 | 73.619 7 | 138.798 2 | 238.317 2 | - |
| ISI | 201 | 60.329 6 | 27.858 0 | 29.810 0 | 53.810 0 | 218.960 0 | - |
| size | 11 954 | 22.265 2 | 1.294 7 | 18.265 9 | 22.081 3 | 28.109 2 | LN,元 |
| ROE | 11 954 | 7.129 8 | 11.493 4 | -98.732 2 | 7.466 1 | 78.127 5 | % |
| TobinQ | 11 954 | 2.092 3 | 1.740 8 | 0.633 8 | 1.632 8 | 58.591 8 | - |
| CFO | 11 954 | 4.584 9 | 7.693 3 | -67.022 5 | 4.565 7 | 72.554 0 | % |
| ALR | 11 954 | 44.839 3 | 20.179 8 | 0.752 1 | 44.846 2 | 175.835 4 | % |
| MBIRI | 11 954 | 0.305 3 | 1.929 3 | -0.999 1 | 0.146 0 | 87.483 7 | % |
| M2 | 201 | 13.972 3 | 0.599 2 | 12.753 0 | 14.063 0 | 14.870 9 | LN,亿元 |
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| 被解释变量 | CAR | ISI | CAR | CAR |
| (1) | (2) | (3) | (4) |
| CNEPU | -0.015 1*** | -0.106 7*** | -0.015 6*** | -0.017 2*** |
| (0.005 7) | (0.008 7) | (0.005 5) | (0.005 5) |
| ISI | | | -0.004 5 | -0.011 2 |
| | | (0.009 3) | (0.010 1) |
| CNEPU×ISI | | | | -0.000 4** |
| | | | (0.000 2) |
| Size | -1.368 4*** | -0.330 3 | -1.369 9*** | -1.369 5*** |
| (0.276 5) | (0.298 6) | (0.276 6) | (0.276 9) |
| ROE | -0.002 8 | 0.031 1** | -0.002 6 | -0.002 9 |
| (0.014 4) | (0.014 3) | (0.014 4) | (0.014 4) |
| TobinQ | 0.661 9*** | -0.052 5 | 0.661 7*** | 0.659 3*** |
| (0.154 6) | (0.158 4) | (0.154 6) | (0.154 4) |
| CFO | 0.000 5 | -0.012 5 | 0.000 5 | 0.000 9 |
| (0.018 4) | (0.020 7) | (0.018 4) | (0.018 4) |
| ALR | 0.010 7 | 0.004 2 | 0.010 7 | 0.010 7 |
| (0.010 8) | (0.011 8) | (0.010 8) | (0.010 8) |
| MBIRI | 0.979 4*** | 0.649 8* | 0.982 3*** | 0.980 6*** |
| (0.315 2) | (0.367 5) | (0.315 3) | (0.315 4) |
| M2 | -2.634 9 | -2.001 0*** | -3.511 1 | -3.401 3 |
| (11.009 2) | (13.192 7) | (10.935 6) | (10.929 9) |
| 常数项 | 69.392 9 | 2 834.398 0*** | 82.065 9 | 81.089 8 |
| (154.746 0) | (185.689 4) | (153.754 3) | (153.692 7) |
| 时间固定效应 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790103154783, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表2, caption=
经济政策不确定性、投资者情绪对企业并购绩效影响机制
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| 被解释变量 | CAR | ISI | CAR | CAR |
| (1) | (2) | (3) | (4) |
| CNEPU | -0.015 1*** | -0.106 7*** | -0.015 6*** | -0.017 2*** |
| (0.005 7) | (0.008 7) | (0.005 5) | (0.005 5) |
| ISI | | | -0.004 5 | -0.011 2 |
| | | (0.009 3) | (0.010 1) |
| CNEPU×ISI | | | | -0.000 4** |
| | | | (0.000 2) |
| Size | -1.368 4*** | -0.330 3 | -1.369 9*** | -1.369 5*** |
| (0.276 5) | (0.298 6) | (0.276 6) | (0.276 9) |
| ROE | -0.002 8 | 0.031 1** | -0.002 6 | -0.002 9 |
| (0.014 4) | (0.014 3) | (0.014 4) | (0.014 4) |
| TobinQ | 0.661 9*** | -0.052 5 | 0.661 7*** | 0.659 3*** |
| (0.154 6) | (0.158 4) | (0.154 6) | (0.154 4) |
| CFO | 0.000 5 | -0.012 5 | 0.000 5 | 0.000 9 |
| (0.018 4) | (0.020 7) | (0.018 4) | (0.018 4) |
| ALR | 0.010 7 | 0.004 2 | 0.010 7 | 0.010 7 |
| (0.010 8) | (0.011 8) | (0.010 8) | (0.010 8) |
| MBIRI | 0.979 4*** | 0.649 8* | 0.982 3*** | 0.980 6*** |
| (0.315 2) | (0.367 5) | (0.315 3) | (0.315 4) |
| M2 | -2.634 9 | -2.001 0*** | -3.511 1 | -3.401 3 |
| (11.009 2) | (13.192 7) | (10.935 6) | (10.929 9) |
| 常数项 | 69.392 9 | 2 834.398 0*** | 82.065 9 | 81.089 8 |
| (154.746 0) | (185.689 4) | (153.754 3) | (153.692 7) |
| 时间固定效应 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790245761130, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 第一阶段 | 第二阶段 |
| CNEPU | CAR |
| CNEPU | | -0.050 3*** |
| | (0.014 1) |
| USEPU | 0.210 0*** | |
| (0.004 3) | |
| ISI | -0.327 6*** | -0.022 2** |
| (0.013 0) | (-0.010 1) |
| CNEPU×ISI | -0.005 3 | -0.000 6*** |
| (0.000 3) | (0.000 2) |
| CD Wald F | 2 367.42*** | |
| A. corr. LM stat. | 2 426.87*** | |
| SW S | 15.76*** | |
), ArticleFig(id=1208083790367395956, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表3, caption=
工具变量法2SLS回归结果
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| 变量 | 第一阶段 | 第二阶段 |
| CNEPU | CAR |
| CNEPU | | -0.050 3*** |
| | (0.014 1) |
| USEPU | 0.210 0*** | |
| (0.004 3) | |
| ISI | -0.327 6*** | -0.022 2** |
| (0.013 0) | (-0.010 1) |
| CNEPU×ISI | -0.005 3 | -0.000 6*** |
| (0.000 3) | (0.000 2) |
| CD Wald F | 2 367.42*** | |
| A. corr. LM stat. | 2 426.87*** | |
| SW S | 15.76*** | |
), ArticleFig(id=1208083790484836477, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | 替换控制变量为CICSI | 替换被解释变量为长期并购绩效 |
| CAR | CAR | BHAR | BHAR | BHAR |
| (1) | (2) | (3) | (4) | (5) |
| CNEPU | -0.014 0** | -0.014 1** | -0.092 9*** | -0.084 8** | -0.093 1*** |
| (0.005 5) | (0.005 5) | (0.033 5) | (0.034 1) | (0.034 8) |
| ISI | | | | 0.075 6 | 0.042 3 |
| | | | (0.049 0) | (0.056 7) |
| CICSI | 0.033 4 | 0.037 0 | | | |
| (0.033 9) | (0.033 9) | | | |
| CNEPU×CICSI | | -0.001 0* | | | |
| | (0.0006) | | | |
| CNEPU×ISI | | | | | -0.001 8* |
| | | | | (0.001 1) |
| 常数项 | 70.680 7 | 79.451 9 | -836.505 2 | -1 050.769 0 | -1 055.626 0 |
| (154.677 4) | (154.574 1) | (881.998 9) | (896.414 4) | (896.379 5) |
| 时间固定效应 | 是 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 | 是 |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790623248521, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表4, caption=
基于变量替换的稳健性检验
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| 被解释变量 | 替换控制变量为CICSI | 替换被解释变量为长期并购绩效 |
| CAR | CAR | BHAR | BHAR | BHAR |
| (1) | (2) | (3) | (4) | (5) |
| CNEPU | -0.014 0** | -0.014 1** | -0.092 9*** | -0.084 8** | -0.093 1*** |
| (0.005 5) | (0.005 5) | (0.033 5) | (0.034 1) | (0.034 8) |
| ISI | | | | 0.075 6 | 0.042 3 |
| | | | (0.049 0) | (0.056 7) |
| CICSI | 0.033 4 | 0.037 0 | | | |
| (0.033 9) | (0.033 9) | | | |
| CNEPU×CICSI | | -0.001 0* | | | |
| | (0.0006) | | | |
| CNEPU×ISI | | | | | -0.001 8* |
| | | | | (0.001 1) |
| 常数项 | 70.680 7 | 79.451 9 | -836.505 2 | -1 050.769 0 | -1 055.626 0 |
| (154.677 4) | (154.574 1) | (881.998 9) | (896.414 4) | (896.379 5) |
| 时间固定效应 | 是 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 | 是 |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790757466257, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | 截面异质性调整 | 面板Tobit回归 |
| CAR | CAR | CAR | CAR |
| (1) | (2) | (3) | (4) |
| CNEPU | -0.015 0*** | -0.016 8*** | -0.013 6*** | -0.014 0*** |
| (0.004 6) | (0.004 5) | (0.004 4) | (0.004 5) |
| ISI | | -0.016 7* | | -0.002 7 |
| | (0.008 6) | | (0.006 9) |
| CNEPU×ISI | | -0.000 2** | | -0.000 2** |
| | (0.000 1) | | (0.000 1) |
| 常数项 | 173.665 4** | 166.236 8** | 13.411 6** | 11.683 4* |
| (73.501 3) | (73.485 0) | (6.004 7) | (6.221 9) |
| 时间固定效应 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790858129564, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表5, caption=
基于回归模型替换的稳健性检验
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| 被解释变量 | 截面异质性调整 | 面板Tobit回归 |
| CAR | CAR | CAR | CAR |
| (1) | (2) | (3) | (4) |
| CNEPU | -0.015 0*** | -0.016 8*** | -0.013 6*** | -0.014 0*** |
| (0.004 6) | (0.004 5) | (0.004 4) | (0.004 5) |
| ISI | | -0.016 7* | | -0.002 7 |
| | (0.008 6) | | (0.006 9) |
| CNEPU×ISI | | -0.000 2** | | -0.000 2** |
| | (0.000 1) | | (0.000 1) |
| 常数项 | 173.665 4** | 166.236 8** | 13.411 6** | 11.683 4* |
| (73.501 3) | (73.485 0) | (6.004 7) | (6.221 9) |
| 时间固定效应 | 是 | 是 | 是 | 是 |
| 行业固定效应 | 是 | 是 | 是 | 是 |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 观测值 | 14 148 | 14 148 | 14 148 | 14 148 |
), ArticleFig(id=1208083790983958692, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | CAR | CAR |
| 下行 | 上行 |
| CNEPU | -0.008 9 | -0.018 2** |
| (0.017 0) | (0.007 4) |
| ISI | 0.08 | -0.043 5*** |
| (0.087 7) | (0.014 0) |
| CNEPU×ISI | -0.001 6 | -0.000 9*** |
| (0.001 4) | (0.000 3) |
| 常数项 | -916.850 1 | 158.756 3 |
| (890.302 5) | (191.728 9) |
| 系数差异性 | 3.930 0** |
| 检验卡方值 | p= 0.047 4 |
| 样本数 | 1 878 | 9 723 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791097204910, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表6, caption=
异质性分析(经济下行VS经济上行)
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| 被解释变量 | CAR | CAR |
| 下行 | 上行 |
| CNEPU | -0.008 9 | -0.018 2** |
| (0.017 0) | (0.007 4) |
| ISI | 0.08 | -0.043 5*** |
| (0.087 7) | (0.014 0) |
| CNEPU×ISI | -0.001 6 | -0.000 9*** |
| (0.001 4) | (0.000 3) |
| 常数项 | -916.850 1 | 158.756 3 |
| (890.302 5) | (191.728 9) |
| 系数差异性 | 3.930 0** |
| 检验卡方值 | p= 0.047 4 |
| 样本数 | 1 878 | 9 723 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791223034040, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | CAR | CAR |
| 集中持股 | 非集中持股 |
| CNEPU | -0.009 3 | -0.021 2*** |
| (0.010 2) | (0.007 7) |
| ISI | -0.013 5 | -0.003 5 |
| (0.021 7) | (0.013 5) |
| CNEPU×ISI | -0.000 7 | -0.000 2** |
| (0.000 5) | (0.000 1) |
| 常数项 | -355.697 8 | 164.210 4 |
| (293.559 1) | (212.516 2) |
| 系数差异性 | 3.450 0* |
| 检验卡方值 | p = 0.063 1 |
| 样本数 | 3 668 | 8 491 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791386611916, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表7, caption=
异质性分析(机构投资者集中持股VS机构投资者非集中持股)
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| 被解释变量 | CAR | CAR |
| 集中持股 | 非集中持股 |
| CNEPU | -0.009 3 | -0.021 2*** |
| (0.010 2) | (0.007 7) |
| ISI | -0.013 5 | -0.003 5 |
| (0.021 7) | (0.013 5) |
| CNEPU×ISI | -0.000 7 | -0.000 2** |
| (0.000 5) | (0.000 1) |
| 常数项 | -355.697 8 | 164.210 4 |
| (293.559 1) | (212.516 2) |
| 系数差异性 | 3.450 0* |
| 检验卡方值 | p = 0.063 1 |
| 样本数 | 3 668 | 8 491 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791520829659, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | CAR | CAR |
| 优越 | 良好 |
| CNEPU | -0.019 4** | -0.024 4*** |
| (0.008 2) | (0.008 6) |
| ISI | 0.004 8 | -0.023 2 |
| (0.015 0) | (0.015 8) |
| CNEPU×ISI | -0.000 2 | -0.000 6* |
| (0.000 3) | (0.000 3) |
| 常数项 | 98.789 1 | -41.719 9 |
| (229.215 8) | (241.287 0) |
| 系数差异性 | 3.760 0* |
| 检验卡方值 | p = 0.052 4 |
| 观测值 | 6 756 | 6 026 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791688601831, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表8, caption=
异质性分析(营商环境优越VS营商环境良好)
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| 被解释变量 | CAR | CAR |
| 优越 | 良好 |
| CNEPU | -0.019 4** | -0.024 4*** |
| (0.008 2) | (0.008 6) |
| ISI | 0.004 8 | -0.023 2 |
| (0.015 0) | (0.015 8) |
| CNEPU×ISI | -0.000 2 | -0.000 6* |
| (0.000 3) | (0.000 3) |
| 常数项 | 98.789 1 | -41.719 9 |
| (229.215 8) | (241.287 0) |
| 系数差异性 | 3.760 0* |
| 检验卡方值 | p = 0.052 4 |
| 观测值 | 6 756 | 6 026 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791797653746, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 被解释变量 | CAR | CAR |
| 属于 | 不属于 |
| CNEPU | -0.007 2 | -0.024 2*** |
| (0.010 1) | (0.008 0) |
| ISI | 0.001 1 | -0.012 6 |
| (0.020 2) | (0.013 9) |
| CNEPU×ISI | -0.000 3 | -0.000 5* |
| (0.000 5) | (0.000 3) |
| 常数项 | -415.413 8 | 97.162 7 |
| (301.130 2) | (214.398 0) |
| 系数差异性 | 9.860 0*** |
| 检验卡方值 | p = 0.001 7 |
| 观测值 | 4 659 | 7 404 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
), ArticleFig(id=1208083791915094271, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052410673631969, language=CN, label=表9, caption=
异质性分析(绿色并购VS非绿色并购)
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| 被解释变量 | CAR | CAR |
| 属于 | 不属于 |
| CNEPU | -0.007 2 | -0.024 2*** |
| (0.010 1) | (0.008 0) |
| ISI | 0.001 1 | -0.012 6 |
| (0.020 2) | (0.013 9) |
| CNEPU×ISI | -0.000 3 | -0.000 5* |
| (0.000 5) | (0.000 3) |
| 常数项 | -415.413 8 | 97.162 7 |
| (301.130 2) | (214.398 0) |
| 系数差异性 | 9.860 0*** |
| 检验卡方值 | p = 0.001 7 |
| 观测值 | 4 659 | 7 404 |
| 时间固定效应 | 是 | 是 |
| 行业固定效应 | 是 | 是 |
| 控制变量 | 控制 | 控制 |
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