Article(id=1153628119165555538, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1153628118079230798, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1002-980X.J24021908, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1708272000000, receivedDateStr=2024-02-19, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1752975976983, onlineDateStr=2025-07-20, pubDate=1728489600000, pubDateStr=2024-10-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752975976983, onlineIssueDateStr=2025-07-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752975976983, creator=13701087609, updateTime=1752975976983, updator=13701087609, issue=Issue{id=1153628118079230798, tenantId=1146029695717560320, journalId=1146120045056339983, year='2024', volume='43', issue='10', pageStart='1', pageEnd='139', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752975976724, creator=13701087609, updateTime=1757554700466, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172832677435683713, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1153628118079230798, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172832677435683714, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1153628118079230798, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=14, endPage=26, ext={EN=ArticleExt(id=1153628119555625813, articleId=1153628119165555538, tenantId=1146029695717560320, journalId=1146120045056339983, language=EN, title=The Influence of National Policy Incentive on Enterprise Digital Technology Innovation: Empirical Evidence Based on the Outline of the National Informatisation Development Strategy, columnId=1149284495141983177, journalTitle=Journal of Technology Economics, columnName=Macro Technology Economics, runingTitle=null, highlight=null, articleAbstract=
Digital technology innovation is the technical support for the development of the digital industry and has an important impact on economic and social development in the digital era. International Patent Classification (IPC) at the level of subgroups was used to construct the quantity and quality of digital technology innovation. Based on this, the Outline of National Informatization Development Strategy issued by the Central Committee of the Communist Party of China and the State Council which is the most representative national digital industry policy was taken as the entry point. The panel data of China's listed companies from 2011 to 2020 was used to empirically test the relationship between digital industry policy and enterprise digital technology innovation. The results are as follows. The national digital industry policy has a significant effect on the quantity and quality of digital technology innovation of micro-entities. Heterogeneity test results show that the above enhancement effect is only established in private enterprises, large-scale enterprises and high-tech enterprises. The mechanism test shows that easing financing constraints, relaxing industry access and promoting enterprise digital technology investment are the three channels which national policy incentive affect digital technology innovation. It is helpful for the government to formulate reasonable policies to encourage enterprise digital technology.
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数字技术创新是数字行业发展的技术支撑,对数字时代下经济社会发展具有重要影响。本文借助于国际专利分类提供的创新活动技术信息,在IPC 小组层面识别出数字发明专利,进而构建了数字技术创新数量和数字技术创新质量指标。在此基础上,本文以国务院颁布的《国家信息化发展战略纲要》这一最具代表性的国家政策激励作为切入点,使用2011—2020年中国上市公司面板数据,对政策激励与企业数字技术创新之间的关系展开实证检验。研究结果表明,政策激励对微观主体的数字技术创新数量和质量均有显著的提升效应。异质性检验结果表明,上述提升效应只在民营企业、大规模企业及高科技企业中成立。机制检验表明,缓解融资约束、放松行业准入及促进企业数字技术投资是国家政策激励影响数字技术创新的三个渠道。本文为我国政策激励提供了有益参考,有助于政府制定合理的政策激励微观主体进行数字技术创新。
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周剑明,暨南大学产业经济研究院博士研究生,研究方向:数字经济:
吴滨,博士,中国社会科学院大学教授,博士研究生导师,中国社会科学院数量经济与技术经济研究所研究员,研究方向:技术经济,绿色发展,产业经济:
胡哲力,中国社会科学院数量经济与技术经济研究所博士后,研究方向:技术经济,产业经济。
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37 ( 3 ): 62 - 71 ., articleTitle=企业数字化转型与审计定价, refAbstract=null)], funds=[Fund(id=1154148529124664302, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, awardId=20&ZD086, language=CN, fundingSource=国家社会科学基金重大项目“粤港澳大湾区构建具有国际竞争力的现代产业体系研究”(20&ZD086), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1154148524078916453, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, xref=1, ext=[AuthorCompanyExt(id=1154148524083110758, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, companyId=1154148524078916453, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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平行趋势检验(DigNum) 纵坐标为 \({95}\%\) 置信区间下系数 \({\beta }_{l}\) 的估计结果; 横坐标中- 4 期、-3 期、-2 期分别为2012 年、2013 年、2014 年
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平行趋势检验(DigQua) 纵坐标为 \({95}\%\) 置信区间下系数 \({\beta }_{t}\) 的估计结果; 横坐标中-4 期、-3 期、-2 期分别为2012 年、2013 年、2014 年
, figureFileSmall=D2nglj4VfiNydZxZ9lTPTg==, figureFileBig=Fj+XHR9nV+COoho68M/ORw==, tableContent=null), ArticleFig(id=1154148527144952762, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=fJuUKmI58SemBww/JOkEcA==, figureFileBig=8+ybnyqB0J5u2O/g2nyRPA==, tableContent=null), ArticleFig(id=1154148527207867324, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=图3, caption=
安慰剂检验(DigNum), figureFileSmall=fJuUKmI58SemBww/JOkEcA==, figureFileBig=8+ybnyqB0J5u2O/g2nyRPA==, tableContent=null), ArticleFig(id=1154148527295947710, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=zJiIsO+yaUqWblFUMDbgjw==, figureFileBig=TCJa6MIw6sKTWrITbUbsDA==, tableContent=null), ArticleFig(id=1154148527358862272, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=图4, caption=
安慰剂检验 (DigQua), figureFileSmall=zJiIsO+yaUqWblFUMDbgjw==, figureFileBig=TCJa6MIw6sKTWrITbUbsDA==, tableContent=null), ArticleFig(id=1154148527413388226, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 变量名称 | | 变量说明 |
| 被解释变量 | 数字技术创新数量(lnDigNum) | \(\ln\)(数字技术发明申请专利数量+1) |
| 数字技术创新质量 (DigQua) | 数字技术发明申请专利知识宽度均值 |
| 解释变量 | 政策激励(Did) | 政策变量×时间变量 |
| 控制变量 | 企业规模(Size) | \(\ln \left(\text{总资产}\right)\) |
| 固定资产占比(Fixtass) | 固定资产与总资产的比值 |
| 资产负债率(Lev) | 总负债与总资产的比值 |
| 资产回报率(Roa) | 净利润与总资产的比值 |
| 企业年龄 (Age) | 年龄的对数值 |
| 两权合一(Duality) | 董事长与总经理是否兼任 |
| 独立董事占比(Dirratio) | 董事中独立董事数的占比 |
| 产权性质 (Equity) | 产权性质 |
| 第一大股东占比(OwnCon) | 第一大股东持股数占总股数比重 |
| 机制变量 | 融资约束 (FinConstra) | \({SA}\) 指数 \(=-{0.737}\times\) Size \(+{0.043}\times {\text{Size}}^{2}-{0.04}\times\) Age |
| 行业准入(IndAccess) | \({HHI}\) 指数 | 特定市场上所有企业的市场份额的平方和 |
| \(C{R}_{8}\) 指数 | 行业前8 家最大的企业所占市场份额的总和 |
| 数字技术投资(DigInvest) | 数字技术相关无形资产占总无形资产的比值 |
), ArticleFig(id=1154148527484691396, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表1, caption=
变量定义和说明, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 变量名称 | | 变量说明 |
| 被解释变量 | 数字技术创新数量(lnDigNum) | \(\ln\)(数字技术发明申请专利数量+1) |
| 数字技术创新质量 (DigQua) | 数字技术发明申请专利知识宽度均值 |
| 解释变量 | 政策激励(Did) | 政策变量×时间变量 |
| 控制变量 | 企业规模(Size) | \(\ln \left(\text{总资产}\right)\) |
| 固定资产占比(Fixtass) | 固定资产与总资产的比值 |
| 资产负债率(Lev) | 总负债与总资产的比值 |
| 资产回报率(Roa) | 净利润与总资产的比值 |
| 企业年龄 (Age) | 年龄的对数值 |
| 两权合一(Duality) | 董事长与总经理是否兼任 |
| 独立董事占比(Dirratio) | 董事中独立董事数的占比 |
| 产权性质 (Equity) | 产权性质 |
| 第一大股东占比(OwnCon) | 第一大股东持股数占总股数比重 |
| 机制变量 | 融资约束 (FinConstra) | \({SA}\) 指数 \(=-{0.737}\times\) Size \(+{0.043}\times {\text{Size}}^{2}-{0.04}\times\) Age |
| 行业准入(IndAccess) | \({HHI}\) 指数 | 特定市场上所有企业的市场份额的平方和 |
| \(C{R}_{8}\) 指数 | 行业前8 家最大的企业所占市场份额的总和 |
| 数字技术投资(DigInvest) | 数字技术相关无形资产占总无形资产的比值 |
), ArticleFig(id=1154148527547605958, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 观测值 | 均值 | 标准差 | 最小值 | 最大值 |
| InDigNum | 25331 | 0.4854 | 0.9760 | 0.0000 | 4.4540 |
| DigQua | 25331 | 0.0742 | 0.1610 | 0.0000 | 0.6667 |
| Did | 25331 | 0.1012 | 0.3020 | 0.0000 | 1.0000 |
| Size | 25331 | 22.1348 | 1.2940 | 19.7500 | 26.1600 |
| Fixtass | 25331 | 0.2148 | 0.1630 | 0.0000 | 0.9709 |
| Lev | 25331 | 0.4164 | 0.2050 | 0.0506 | 0.8837 |
| Roa | 25331 | 0.0412 | 0.0580 | -0.2242 | 0.2045 |
| Age | 25331 | 2.8568 | 0.3430 | 0.6931 | 4.1430 |
| Duality | 25331 | 0.7196 | 0.4490 | 0.0000 | 1.0000 |
| Dirratio | 25331 | 0.3749 | 0.0550 | 0.1818 | 0.8000 |
| Equity | 25331 | 1.6852 | 0.5950 | 1.0000 | 4.0000 |
| OwnCon | 25331 | 0.3569 | 0.1480 | 0.0896 | 0.7496 |
| FinConstra | 25331 | -3.7788 | 0.2630 | -5.6000 | -1.8050 |
| HHI | 25561 | 0.1380 | 0.1460 | 0.0151 | 1.0000 |
| \(C{R}_{8}\) | 23561 | 0.6540 | 0.1725 | 0.2300 | 1.0000 |
| DigInvest | 20017 | 0.0046 | 0.0119 | 0.0000 | 0.2626 |
), ArticleFig(id=1154148527614714824, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表2, caption=
描述性统计, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 观测值 | 均值 | 标准差 | 最小值 | 最大值 |
| InDigNum | 25331 | 0.4854 | 0.9760 | 0.0000 | 4.4540 |
| DigQua | 25331 | 0.0742 | 0.1610 | 0.0000 | 0.6667 |
| Did | 25331 | 0.1012 | 0.3020 | 0.0000 | 1.0000 |
| Size | 25331 | 22.1348 | 1.2940 | 19.7500 | 26.1600 |
| Fixtass | 25331 | 0.2148 | 0.1630 | 0.0000 | 0.9709 |
| Lev | 25331 | 0.4164 | 0.2050 | 0.0506 | 0.8837 |
| Roa | 25331 | 0.0412 | 0.0580 | -0.2242 | 0.2045 |
| Age | 25331 | 2.8568 | 0.3430 | 0.6931 | 4.1430 |
| Duality | 25331 | 0.7196 | 0.4490 | 0.0000 | 1.0000 |
| Dirratio | 25331 | 0.3749 | 0.0550 | 0.1818 | 0.8000 |
| Equity | 25331 | 1.6852 | 0.5950 | 1.0000 | 4.0000 |
| OwnCon | 25331 | 0.3569 | 0.1480 | 0.0896 | 0.7496 |
| FinConstra | 25331 | -3.7788 | 0.2630 | -5.6000 | -1.8050 |
| HHI | 25561 | 0.1380 | 0.1460 | 0.0151 | 1.0000 |
| \(C{R}_{8}\) | 23561 | 0.6540 | 0.1725 | 0.2300 | 1.0000 |
| DigInvest | 20017 | 0.0046 | 0.0119 | 0.0000 | 0.2626 |
), ArticleFig(id=1154148527677629386, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 专利数 | 政策实施前 | 政策实施后 | Diff |
| 对照组 | 0.2623 | 0.3963 | 0.1340**(0.0111) |
| 实验组 | 1.0390 | 1.3429 | 0.3039**(0.0433) |
| \({\text{Diff}}_{1}\) | 0.7767**(0.0228) | \({0.9466}^{**}\)(0.0210) | \({0.1700}{}^{**}\)(0.0318) |
), ArticleFig(id=1154148527753126859, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表3, caption=
单变量双重差分检验( DigNum ), figureFileSmall=null, figureFileBig=null, tableContent=
| 专利数 | 政策实施前 | 政策实施后 | Diff |
| 对照组 | 0.2623 | 0.3963 | 0.1340**(0.0111) |
| 实验组 | 1.0390 | 1.3429 | 0.3039**(0.0433) |
| \({\text{Diff}}_{1}\) | 0.7767**(0.0228) | \({0.9466}^{**}\)(0.0210) | \({0.1700}{}^{**}\)(0.0318) |
), ArticleFig(id=1154148527803458508, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 专利数 | 政策实施前 | 政策实施后 | Diff |
| 对照组 | 0.0403 | 0.0767 | 0.0364 ***(0.0021) |
| 实验组 | 0.1021 | 0.1630 | 0.0609***(0.0055) |
| \({\text{Diff}}_{1}\) | 0.0618***(0.0035) | 0.0862}{***(0.0038) | 0.0245 ***(0.0055) |
), ArticleFig(id=1154148527870567374, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表4, caption=
单变量双重差分检验(DigQua), figureFileSmall=null, figureFileBig=null, tableContent=
| 专利数 | 政策实施前 | 政策实施后 | Diff |
| 对照组 | 0.0403 | 0.0767 | 0.0364 ***(0.0021) |
| 实验组 | 0.1021 | 0.1630 | 0.0609***(0.0055) |
| \({\text{Diff}}_{1}\) | 0.0618***(0.0035) | 0.0862}{***(0.0038) | 0.0245 ***(0.0055) |
), ArticleFig(id=1154148527929287631, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 数字技术创新数量 | 数字技术创新质量 |
| (1) | (2) | (3) | (4) | (5) | (6) |
| Did | 0.9454***(17.0969) | 0.2124 ***(4.3765) | \({0.1877}^{***}\left({3.9023}\right)\) | 0.0856 ***( 14.7196 ) | \({0.0240}{}^{***}\left({3.6095}\right)\) | \({0.0212}{}^{***}\left({3.1734}\right)\) |
| Size | | | 0.0647 ***(4.6095) | | | 0.0037 (1.5532) |
| Fixtass | | | 0.1176 *(1.7311) | | | \({0.0172}\left({1.4051}\right)\) |
| Lev | | | \({0.0343}\left({0.7576}\right)\) | | | \({0.0134}\left({1.3960}\right)\) |
| Roa | | | \({0.0980}\left({1.1479}\right)\) | | | \({0.0083}\left({0.4040}\right)\) |
| Age | | | \({0.0724}\left({0.7592}\right)\) | | | \({0.0074}\left({0.3955}\right)\) |
| Duality | | | \({0.0019}\left({0.1408}\right)\) | | | \(-{0.0005}\left({-{0.1739}}\right)\) |
| Dirratio | | | \(-{0.1060}\left({-{0.8517}}\right)\) | | | \(-{0.0398}\left({-{1.4178}}\right)\) |
| Equity | | | \(-{0.0124}\left({-{0.6962}}\right)\) | | | \(-{0.0060}\left({-{1.3794}}\right)\) |
| OwnCon | | | \(-{0.1420}^{*}\left({-{1.7031}}\right)\) | | | \(-{0.0304}^{**}\left({-{1.9751}}\right)\) |
| 常数项 | \({0.3897}^{***}\left({27.5234}\right)\) | 0.4639 ***( 94.4345 ) | \(-{1.1066}{}^{***}(-{2.8470}\) | \({0.0656}{}^{***}\left({33.7393}\right)\) | 0.0718 ***( 106.8533) | \(-{0.0052}\left({-{0.0688}}\right)\) |
| 年份固定效应 | 是 | 是 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 否 | 是 | 是 | 否 | 是 | 是 |
| 样本量 | 25331 | 25331 | 25331 | 25331 | 25331 | 25331 |
| 调整 \({R}^{2}\) | 0.0886 | 0.7557 | 0.7565 | 0.0467 | 0.3798 | 0.3801 |
), ArticleFig(id=1154148528000590801, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表5, caption=
政策激励对上市公司数字技术创新的影响, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 数字技术创新数量 | 数字技术创新质量 |
| (1) | (2) | (3) | (4) | (5) | (6) |
| Did | 0.9454***(17.0969) | 0.2124 ***(4.3765) | \({0.1877}^{***}\left({3.9023}\right)\) | 0.0856 ***( 14.7196 ) | \({0.0240}{}^{***}\left({3.6095}\right)\) | \({0.0212}{}^{***}\left({3.1734}\right)\) |
| Size | | | 0.0647 ***(4.6095) | | | 0.0037 (1.5532) |
| Fixtass | | | 0.1176 *(1.7311) | | | \({0.0172}\left({1.4051}\right)\) |
| Lev | | | \({0.0343}\left({0.7576}\right)\) | | | \({0.0134}\left({1.3960}\right)\) |
| Roa | | | \({0.0980}\left({1.1479}\right)\) | | | \({0.0083}\left({0.4040}\right)\) |
| Age | | | \({0.0724}\left({0.7592}\right)\) | | | \({0.0074}\left({0.3955}\right)\) |
| Duality | | | \({0.0019}\left({0.1408}\right)\) | | | \(-{0.0005}\left({-{0.1739}}\right)\) |
| Dirratio | | | \(-{0.1060}\left({-{0.8517}}\right)\) | | | \(-{0.0398}\left({-{1.4178}}\right)\) |
| Equity | | | \(-{0.0124}\left({-{0.6962}}\right)\) | | | \(-{0.0060}\left({-{1.3794}}\right)\) |
| OwnCon | | | \(-{0.1420}^{*}\left({-{1.7031}}\right)\) | | | \(-{0.0304}^{**}\left({-{1.9751}}\right)\) |
| 常数项 | \({0.3897}^{***}\left({27.5234}\right)\) | 0.4639 ***( 94.4345 ) | \(-{1.1066}{}^{***}(-{2.8470}\) | \({0.0656}{}^{***}\left({33.7393}\right)\) | 0.0718 ***( 106.8533) | \(-{0.0052}\left({-{0.0688}}\right)\) |
| 年份固定效应 | 是 | 是 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 否 | 是 | 是 | 否 | 是 | 是 |
| 样本量 | 25331 | 25331 | 25331 | 25331 | 25331 | 25331 |
| 调整 \({R}^{2}\) | 0.0886 | 0.7557 | 0.7565 | 0.0467 | 0.3798 | 0.3801 |
), ArticleFig(id=1154148528076088275, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 更换被解释变量 | 更强的固定效应 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.1633 ***(2.8694) | 0.0245 ***(3.1283) | 0.1810 ***(3.7061) | 0.0189 ***(2.7660) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 年份 * 省份 | 年份 * 省份 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 18762 | 25331 | 25329 | 25329 |
), ArticleFig(id=1154148528155780053, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表6, caption=
更换被解释变量和更强的固定效应的稳健性检验, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 更换被解释变量 | 更强的固定效应 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.1633 ***(2.8694) | 0.0245 ***(3.1283) | 0.1810 ***(3.7061) | 0.0189 ***(2.7660) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 年份 * 省份 | 年份 * 省份 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 18762 | 25331 | 25329 | 25329 |
), ArticleFig(id=1154148528239666135, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 排除同期政策的影响 | 控制变量滞后处理 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.1872 ***(3.8810) | 0.0210 ***(3.1519) | 0.1741 ***(3.5260) | 0.0238 ***(3.4346) |
| Did_stra | 0.0290 (0.4170) | 0.0091 (0.6065) | | |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 25331 | 25331 | 21590 | 21590 |
| 调整 \({R}^{2}\) | 0.7565 | 0.3800 | 0.7696 | 0.3866 |
), ArticleFig(id=1154148528298386393, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表7, caption=
其他政策的影响和控制变量滞后处理的稳健性检验, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 排除同期政策的影响 | 控制变量滞后处理 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.1872 ***(3.8810) | 0.0210 ***(3.1519) | 0.1741 ***(3.5260) | 0.0238 ***(3.4346) |
| Did_stra | 0.0290 (0.4170) | 0.0091 (0.6065) | | |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 25331 | 25331 | 21590 | 21590 |
| 调整 \({R}^{2}\) | 0.7565 | 0.3800 | 0.7696 | 0.3866 |
), ArticleFig(id=1154148528361300955, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 数量 | 质量 |
| (1) | (2) |
| Did | 0.0409***(4.3779) | 0.1805 ***(2.8918) |
| 控制变量 | 是 | 是 |
| 年份固定效应 | 是 | 是 |
| 个体固定效应 | 是 | 是 |
| 样本量 | 21590 | 21590 |
| 调整 \({R}^{2}\) | 0.0006 | 0.0074 |
| Kleibergen-Paaprk LM | 448.896 ***(0.000) | 448.914 ***(0.000) |
| Cragg-Donald Wald \(F\) | 15000 | 31000 |
| Hansen \(J\) | 1.051 (0.305) | 1.993 (0.158) |
), ArticleFig(id=1154148528420021213, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表8, caption=
工具变量检验, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 数量 | 质量 |
| (1) | (2) |
| Did | 0.0409***(4.3779) | 0.1805 ***(2.8918) |
| 控制变量 | 是 | 是 |
| 年份固定效应 | 是 | 是 |
| 个体固定效应 | 是 | 是 |
| 样本量 | 21590 | 21590 |
| 调整 \({R}^{2}\) | 0.0006 | 0.0074 |
| Kleibergen-Paaprk LM | 448.896 ***(0.000) | 448.914 ***(0.000) |
| Cragg-Donald Wald \(F\) | 15000 | 31000 |
| Hansen \(J\) | 1.051 (0.305) | 1.993 (0.158) |
), ArticleFig(id=1154148528491324383, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 国有企业 | 民营企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.0776 (0.7919) | 0.0145 (1.1330) | 0.2313 ***(3.9979) | 0.0214 **( 2.5426 ) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定 效应 | 是 | 是 | 是 | 是 |
| 个体固定 效应 | 是 | 是 | 是 | 是 |
| 样本量 | 9374 | 9374 | 14733 | 14733 |
| 调整 \({R}^{2}\) | 0.8152 | 0.4271 | 0.7189 | 0.3502 |
), ArticleFig(id=1154148528550044641, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表9, caption=
异质性检验: 企业产权性质, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 国有企业 | 民营企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.0776 (0.7919) | 0.0145 (1.1330) | 0.2313 ***(3.9979) | 0.0214 **( 2.5426 ) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定 效应 | 是 | 是 | 是 | 是 |
| 个体固定 效应 | 是 | 是 | 是 | 是 |
| 样本量 | 9374 | 9374 | 14733 | 14733 |
| 调整 \({R}^{2}\) | 0.8152 | 0.4271 | 0.7189 | 0.3502 |
), ArticleFig(id=1154148528621347812, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 大规模企业 | 中小规模企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.2245 ***( 2.6563 ) | 0.0306 ***(2.8723) | \({0.0900}\left({1.6286}\right)\) | 0.0097 (0.9788) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 11574 | 11574 | 13401 | 13401 |
| 调整 \({R}^{2}\) | 0.7977 | 0.4242 | 0.7116 | 0.3535 |
), ArticleFig(id=1154148528684262372, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表10, caption=
异质性检验: 企业规模差异, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 大规模企业 | 中小规模企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | 0.2245 ***( 2.6563 ) | 0.0306 ***(2.8723) | \({0.0900}\left({1.6286}\right)\) | 0.0097 (0.9788) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 11574 | 11574 | 13401 | 13401 |
| 调整 \({R}^{2}\) | 0.7977 | 0.4242 | 0.7116 | 0.3535 |
), ArticleFig(id=1154148528759759845, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 高科技企业 | 非高科技企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | \({0.1564}^{***}\left({2.9230}\right)\) | \({0.0175}^{**}\left({2.3069}\right)\) | \({0.1059}\left({0.8762}\right)\) | \({0.0040}\left({0.1879}\right)\) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 14826 | 14826 | 10415 | 10415 |
| 调整 \({R}^{2}\) | 0.7511 | 0.3664 | 0.6383 | 0.3165 |
), ArticleFig(id=1154148528831063014, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表11, caption=
异质性检验: 企业科技性质, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 高科技企业 | 非高科技企业 |
| 数量 | 质量 | 数量 | 质量 |
| (1) | (2) | (3) | (4) |
| Did | \({0.1564}^{***}\left({2.9230}\right)\) | \({0.0175}^{**}\left({2.3069}\right)\) | \({0.1059}\left({0.8762}\right)\) | \({0.0040}\left({0.1879}\right)\) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 |
| 个体固定效应 | 是 | 是 | 是 | 是 |
| 样本量 | 14826 | 14826 | 10415 | 10415 |
| 调整 \({R}^{2}\) | 0.7511 | 0.3664 | 0.6383 | 0.3165 |
), ArticleFig(id=1154148528893977576, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 缓解 | 放松行业准入 | 增加数字 技术投资 |
| 融资约束 | \({HHI}\) 指数 | \(C{R}_{8}\) 指数 |
| (1) | (2) | (3) | (4) |
| Did | -0.0204***(-3.9150) | -0.0205**(-4.1147) | -0.0748***(-16.0076) | 0.0039**(3.8290) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定 效应 | 是 | 是 | 是 | 是 |
| 个体固定 效应 | 是 | 是 | 是 | 是 |
| 样本量 | 25331 | 25308 | 23561 | 20017 |
| 调整 \({R}^{2}\) | 0.9564 | 0.7409 | 0.8451 | 0.7540 |
), ArticleFig(id=1154148528965280746, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1153628119165555538, language=CN, label=表12, caption=
机制检验, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 缓解 | 放松行业准入 | 增加数字 技术投资 |
| 融资约束 | \({HHI}\) 指数 | \(C{R}_{8}\) 指数 |
| (1) | (2) | (3) | (4) |
| Did | -0.0204***(-3.9150) | -0.0205**(-4.1147) | -0.0748***(-16.0076) | 0.0039**(3.8290) |
| 控制变量 | 是 | 是 | 是 | 是 |
| 年份固定 效应 | 是 | 是 | 是 | 是 |
| 个体固定 效应 | 是 | 是 | 是 | 是 |
| 样本量 | 25331 | 25308 | 23561 | 20017 |
| 调整 \({R}^{2}\) | 0.9564 | 0.7409 | 0.8451 | 0.7540 |
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