Article(id=1172126434106658913, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1172126429690056793, articleNumber=1002-980X(2025)06-0001-16, orderNo=null, doi=10.12404/j.issn.1002-980X.J24102506, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1729785600000, receivedDateStr=2024-10-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1757386318946, onlineDateStr=2025-09-09, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1757386318946, onlineIssueDateStr=2025-09-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1757386318946, creator=13701087609, updateTime=1757386318946, updator=13701087609, issue=Issue{id=1172126429690056793, tenantId=1146029695717560320, journalId=1146120045056339983, year='2025', volume='44', issue='6', pageStart='1', pageEnd='138', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1757386317864, creator=13701087609, updateTime=1757394220127, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172159574116258147, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1172126429690056793, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172159574116258148, tenantId=1146029695717560320, journalId=1146120045056339983, issueId=1172126429690056793, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=16, ext={EN=ArticleExt(id=1172126434551255138, articleId=1172126434106658913, tenantId=1146029695717560320, journalId=1146120045056339983, language=EN, title=Digital Transformation, Innovation Chain Spillover and Downstream Enterprise Innovation, columnId=1149284496320578211, journalTitle=Journal of Technology Economics, columnName=Enterprise Technology Economics, runingTitle=null, highlight=null, articleAbstract=
Digital transformation is not only one of the important internal driving forces for enterprises to maintain competitive advantage, but also one of the singificant driving forces for empowering the innovation networks. Based on the patents and citation data of listed companies from 2007 to 2022, the impact of digital transformation on downstream enterprise innovation through the spillover effect of innovation chain was examined. The results show that digital transformation significantly promotes the innovation level of downstream enterprises. Moreover, in the samples of state-owned enterprises and regions with low levels of intellectual property protection, the impact of digital transformation on the innovation of downstream enterprises is greater. Mechanism analysis shows that the knowledge spillover effect is an important mechanism for digital transformation to promote the downstream enterprise innovation. Further analysis shows that digital transformation in different dimensions has different impacts on the innovation of downstream enterprises. Among them, digital transformation in the technology and platform has a more significant impact on the downstream enterprise innovation, and digital transformation also has a positive impact on the innovation efficiency, innovation quality and total factor productivity of downstream enterprises. These conclusions enrich the relevant research on enterprise digital transformation, and provide important practical references for enterprises to actively integrate into the innovation network.
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数字化转型不仅是企业保持竞争优势的重要内驱力之一,也是赋能创新网络的重要动力之一。本文基于2007—2022年上市公司的专利及其引用数据,考察了数字化转型通过创新链的溢出效应对下游企业创新的影响。研究发现,数字化转型显著提高了下游企业的创新水平。在国有企业样本和知识产权保护水平较低的地区样本中,数字化转型对下游企业创新的影响效果更大。机制分析表明,知识溢出效应是数字化转型促进下游企业创新的重要途径。进一步分析发现,不同维度的数字化转型对下游企业的创新影响不同,其中技术与平台维度的数字化转型对下游企业的创新促进效果更大,并且数字化转型对下游企业的创新效率、创新质量和全要素生产率也产生了积极的影响。研究结论丰富了企业数字化转型的相关研究,同时为企业积极融入创新网络提供了重要的实践参考。
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张钟文(1987—),博士,中国人民大学应用经济学院副教授,研究方向:产业经济、数字经济。
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张杨(1993—),博士,中国人民大学应用经济学院博士后,研究方向:企业创新;
蒋金骋(2002—),中国人民大学应用经济学院硕士研究生,研究方向:经济波动,生产率研究。
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张杨(1993—),博士,中国人民大学应用经济学院博士后,研究方向:企业创新;
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蒋金骋(2002—),中国人民大学应用经济学院硕士研究生,研究方向:经济波动,生产率研究。
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蒋金骋(2002—),中国人民大学应用经济学院硕士研究生,研究方向:经济波动,生产率研究。
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112(1): 116-135., articleTitle=Financial development and innovation: Cross-country evidence, refAbstract=null)], funds=[Fund(id=1174333268385215209, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, awardId=72473150, language=CN, fundingSource=国家自然科学基金面上项目“数据资本测度及其对全要素生产率的影响研究——基于微观企业的视角”(72473150), fundOrder=null, country=null), Fund(id=1174333268452324074, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, awardId=297524111309, language=CN, fundingSource=中国人民大学科学研究基金项目“构建国有-民营经济高质量协同发展新格局:基于新质生产力的视域”(297524111309), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1174333264878777011, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, xref=null, ext=[AuthorCompanyExt(id=1174333264887165620, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, companyId=1174333264878777011, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Applied Economics, Renmin University of China, Beijing 100872, China), AuthorCompanyExt(id=1174333264895554229, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, companyId=1174333264878777011, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国人民大学应用经济学院, 北京 100872)])], figs=[ArticleFig(id=1174333266086736587, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 变量符号 | 定义 |
| 被解释变量 | 下游企业创新 | Patent | ln(企业发明专利申请数+1) |
| 解释变量 | 数字化转型 | Dig | 上游企业平均数字化转型程度的加权平均值 |
| 机制变量 | 知识溢出 | Knowledge | 企业i引用企业j专利次数的比例,并累积过去5年的比例加权值 |
| 控制变量 | 企业年龄 | Age | ln(企业存续年数+1) |
| 员工人数 | Emp | ln(企业员工人数) |
| 赫芬达尔指数 | HHI | 公司主营业务收入与行业主营业务收入的比值的累计平方和 |
| 产权性质 | Soe | 国有企业赋值为1,否则赋值为0 |
| 盈利能力 | ROA | 净利润占总资产的比重 |
| 资产负债率 | Lev | 总负债占总资产的比重 |
| 股权集中度 | Top1 | 第一大股东持股比例 |
| 科技型企业 | Tech | 根据证监会《上市公司行业分类指引》(2012年修订),将二级代码为C24、C25、C26、C27、C28、C37、C39、I65、M74的行业认定为科技型企业,赋值为1,否则赋值为0 |
| 年份虚拟变量 | Year | 样本范围在2007—2022年,设置15个虚拟变量 |
| 行业虚拟变量 | Indus | 根据证监会《上市公司行业分类指引》(2012年修订),各行业按一级代码分类,制造业按二级代码分类,共设置46个虚拟变量 |
), ArticleFig(id=1174333266162234060, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表1, caption=
变量名称及定义
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| 变量 | 变量符号 | 定义 |
| 被解释变量 | 下游企业创新 | Patent | ln(企业发明专利申请数+1) |
| 解释变量 | 数字化转型 | Dig | 上游企业平均数字化转型程度的加权平均值 |
| 机制变量 | 知识溢出 | Knowledge | 企业i引用企业j专利次数的比例,并累积过去5年的比例加权值 |
| 控制变量 | 企业年龄 | Age | ln(企业存续年数+1) |
| 员工人数 | Emp | ln(企业员工人数) |
| 赫芬达尔指数 | HHI | 公司主营业务收入与行业主营业务收入的比值的累计平方和 |
| 产权性质 | Soe | 国有企业赋值为1,否则赋值为0 |
| 盈利能力 | ROA | 净利润占总资产的比重 |
| 资产负债率 | Lev | 总负债占总资产的比重 |
| 股权集中度 | Top1 | 第一大股东持股比例 |
| 科技型企业 | Tech | 根据证监会《上市公司行业分类指引》(2012年修订),将二级代码为C24、C25、C26、C27、C28、C37、C39、I65、M74的行业认定为科技型企业,赋值为1,否则赋值为0 |
| 年份虚拟变量 | Year | 样本范围在2007—2022年,设置15个虚拟变量 |
| 行业虚拟变量 | Indus | 根据证监会《上市公司行业分类指引》(2012年修订),各行业按一级代码分类,制造业按二级代码分类,共设置46个虚拟变量 |
), ArticleFig(id=1174333266233537229, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量符号 | 观测数 | 平均值 | 标准差 | 中位数 | 最小值 | 最大值 |
| Patent | 19431 | 2.861 | 1.392 | 2.773 | 0.000 | 9.074 |
| Dig | 19431 | 3.193 | 1.648 | 3.549 | 0.000 | 6.423 |
| Knowledge | 19431 | 1.384 | 0.591 | 1.534 | 0.000 | 2.427 |
| Age | 19431 | 2.858 | 0.357 | 2.890 | 0.693 | 4.007 |
| Emp | 19431 | 7.937 | 1.257 | 7.839 | 2.303 | 13.223 |
| HHI | 19431 | 0.117 | 0.124 | 0.078 | 0.014 | 1.000 |
| Soe | 19431 | 0.367 | 0.482 | 0.000 | 0.000 | 1.000 |
| ROA | 19431 | 0.068 | 0.109 | 0.073 | -0.615 | 0.313 |
| Lev | 19431 | 0.425 | 0.196 | 0.420 | 0.053 | 0.876 |
| Top1 | 19431 | 0.347 | 0.148 | 0.327 | 0.086 | 0.747 |
| Tech | 19431 | 0.372 | 0.483 | 0.000 | 0.000 | 1.000 |
), ArticleFig(id=1174333266304840398, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表2, caption=
全样本描述性统计
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| 变量符号 | 观测数 | 平均值 | 标准差 | 中位数 | 最小值 | 最大值 |
| Patent | 19431 | 2.861 | 1.392 | 2.773 | 0.000 | 9.074 |
| Dig | 19431 | 3.193 | 1.648 | 3.549 | 0.000 | 6.423 |
| Knowledge | 19431 | 1.384 | 0.591 | 1.534 | 0.000 | 2.427 |
| Age | 19431 | 2.858 | 0.357 | 2.890 | 0.693 | 4.007 |
| Emp | 19431 | 7.937 | 1.257 | 7.839 | 2.303 | 13.223 |
| HHI | 19431 | 0.117 | 0.124 | 0.078 | 0.014 | 1.000 |
| Soe | 19431 | 0.367 | 0.482 | 0.000 | 0.000 | 1.000 |
| ROA | 19431 | 0.068 | 0.109 | 0.073 | -0.615 | 0.313 |
| Lev | 19431 | 0.425 | 0.196 | 0.420 | 0.053 | 0.876 |
| Top1 | 19431 | 0.347 | 0.148 | 0.327 | 0.086 | 0.747 |
| Tech | 19431 | 0.372 | 0.483 | 0.000 | 0.000 | 1.000 |
), ArticleFig(id=1174333266380337871, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| Patent | Patent | Patent |
| Dig | 0.371*** (0.008) | 0.331*** (0.007) | 0.285*** (0.007) |
| Age | | -0.146*** (0.042) | -0.125** (0.051) |
| Emp | | 0.465*** (0.023) | 0.494*** (0.022) |
| HHI | | -0.323* (0.172) | 0.292 (0.225) |
| Soe | | 0.140*** (0.041) | 0.245*** (0.041) |
| ROA | | 0.771*** (0.115) | 0.915*** (0.108) |
| Lev | | 0.156 (0.099) | 0.031 (0.099) |
| Top1 | | -0.094 (0.129) | 0.044 (0.122) |
| Tech | | 0.212*** (0.038) | 0.530*** (0.168) |
| Year | No | No | Yes |
| Indus | No | No | Yes |
| Constants | 1.678*** (0.026) | -1.647*** (0.194) | -2.026*** (0.238) |
| N | 19431 | 19431 | 19431 |
| R2 | 0.193 | 0.394 | 0.456 |
), ArticleFig(id=1174333266443252432, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表3, caption=
基准回归结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| Patent | Patent | Patent |
| Dig | 0.371*** (0.008) | 0.331*** (0.007) | 0.285*** (0.007) |
| Age | | -0.146*** (0.042) | -0.125** (0.051) |
| Emp | | 0.465*** (0.023) | 0.494*** (0.022) |
| HHI | | -0.323* (0.172) | 0.292 (0.225) |
| Soe | | 0.140*** (0.041) | 0.245*** (0.041) |
| ROA | | 0.771*** (0.115) | 0.915*** (0.108) |
| Lev | | 0.156 (0.099) | 0.031 (0.099) |
| Top1 | | -0.094 (0.129) | 0.044 (0.122) |
| Tech | | 0.212*** (0.038) | 0.530*** (0.168) |
| Year | No | No | Yes |
| Indus | No | No | Yes |
| Constants | 1.678*** (0.026) | -1.647*** (0.194) | -2.026*** (0.238) |
| N | 19431 | 19431 | 19431 |
| R2 | 0.193 | 0.394 | 0.456 |
), ArticleFig(id=1174333266514555601, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| Lewbel_IV | Bartik_IV |
| Patent | Patent |
| Dig | 0.150***(0.021) | 0.319***(0.008) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| N | 19431 | 19431 |
| Kleibergen-Paap rk LM statistic | 884.959*** | 1491.250*** |
| Cragg-Donald Wald F statistic | 2556.305[16.38] | 61000[16.38] |
), ArticleFig(id=1174333266581664466, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表4, caption=
工具变量2SLS第二阶段回归结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| Lewbel_IV | Bartik_IV |
| Patent | Patent |
| Dig | 0.150***(0.021) | 0.319***(0.008) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| N | 19431 | 19431 |
| Kleibergen-Paap rk LM statistic | 884.959*** | 1491.250*** |
| Cragg-Donald Wald F statistic | 2556.305[16.38] | 61000[16.38] |
), ArticleFig(id=1174333266636190419, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| 一阶段 | 二阶段 |
| Dig_dum | Patent |
| Dig | | 0.122***(0.015) |
| IMR | | 3.154*(1.769) |
| Dig_mean | 0.261***(0.090) | |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | 7.983***(0.692) | -1.855***(0.272) |
| N | 14631 | 14631 |
| R2 | | 0.387 |
| Pseudo R2 | 0.137 | |
), ArticleFig(id=1174333266699104980, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表5, caption=
Heckman两阶段回归结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| 一阶段 | 二阶段 |
| Dig_dum | Patent |
| Dig | | 0.122***(0.015) |
| IMR | | 3.154*(1.769) |
| Dig_mean | 0.261***(0.090) | |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | 7.983***(0.692) | -1.855***(0.272) |
| N | 14631 | 14631 |
| R2 | | 0.387 |
| Pseudo R2 | 0.137 | |
), ArticleFig(id=1174333266766213845, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| Patent | Patent |
| Dig | 0.179***(0.005) | 0.176***(0.005) |
| Control | No | Yes |
| Code | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | 2.289***(0.015) | -0.210(0.454) |
| N | 19431 | 19431 |
| R2 | 0.791 | 0.798 |
), ArticleFig(id=1174333266837517014, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表6, caption=
个体固定效应回归结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| Patent | Patent |
| Dig | 0.179***(0.005) | 0.176***(0.005) |
| Control | No | Yes |
| Code | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | 2.289***(0.015) | -0.210(0.454) |
| N | 19431 | 19431 |
| R2 | 0.791 | 0.798 |
), ArticleFig(id=1174333266904625879, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) | (4) |
| Patent1 | Patent2 | Patent3 | Patent4 |
| Dig | 0.168***(0.007) | 0.250***(0.007) | 0.114***(0.007) | 0.132***(0.007) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.627***(0.223) | -1.198***(0.211) | -2.442***(0.253) | -1.607***(0.222) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.500 | 0.512 | 0.349 | 0.499 |
), ArticleFig(id=1174333266992706264, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表7, caption=
替换被解释变量的稳健性检验
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| 变量 | (1) | (2) | (3) | (4) |
| Patent1 | Patent2 | Patent3 | Patent4 |
| Dig | 0.168***(0.007) | 0.250***(0.007) | 0.114***(0.007) | 0.132***(0.007) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.627***(0.223) | -1.198***(0.211) | -2.442***(0.253) | -1.607***(0.222) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.500 | 0.512 | 0.349 | 0.499 |
), ArticleFig(id=1174333267051426521, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) | (4) |
| Patent | Patent | Patent | Patent |
| Dig_w | 0.301***(0.011) | | | |
| Perdig | | 0.623***(0.028) | | |
| Dig_sum | | | 0.220***(0.005) | |
| Perdig_sum | | | | 1.751***(0.081) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.744***(0.244) | -1.697***(0.246) | -2.067***(0.236) | -1.751***(0.245) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.414 | 0.405 | 0.459 | 0.406 |
), ArticleFig(id=1174333267131118298, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表8, caption=
替换解释变量的稳健性检验
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| 变量 | (1) | (2) | (3) | (4) |
| Patent | Patent | Patent | Patent |
| Dig_w | 0.301***(0.011) | | | |
| Perdig | | 0.623***(0.028) | | |
| Dig_sum | | | 0.220***(0.005) | |
| Perdig_sum | | | | 1.751***(0.081) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.744***(0.244) | -1.697***(0.246) | -2.067***(0.236) | -1.751***(0.245) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.414 | 0.405 | 0.459 | 0.406 |
), ArticleFig(id=1174333267206615771, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| 剔除高新企业样本 | 剔除违规企业样本 | 剔除夸大披露样本 |
| Patent | Patent | Patent |
| Dig | 0.132***(0.014) | 0.140***(0.014) | 0.116***(0.016) |
| Control | Yes | Yes | Yes |
| Year | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes |
| Constants | -1.725***(0.266) | -1.726***(0.262) | -1.660***(0.272) |
| N | 15292 | 16004 | 13749 |
| R2 | 0.386 | 0.383 | 0.381 |
), ArticleFig(id=1174333267277918940, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表9, caption=
排除策略性披露行为样本的回归结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| 剔除高新企业样本 | 剔除违规企业样本 | 剔除夸大披露样本 |
| Patent | Patent | Patent |
| Dig | 0.132***(0.014) | 0.140***(0.014) | 0.116***(0.016) |
| Control | Yes | Yes | Yes |
| Year | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes |
| Constants | -1.725***(0.266) | -1.726***(0.262) | -1.660***(0.272) |
| N | 15292 | 16004 | 13749 |
| R2 | 0.386 | 0.383 | 0.381 |
), ArticleFig(id=1174333267345027805, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) |
| 截取2016—2022年样本 | 剔除直辖市样本 |
| Patent | Patent |
| Dig | 0.284***(0.007) | 0.282***(0.007) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | -2.183***(0.247) | -2.109***(0.239) |
| N | 13647 | 15627 |
| R2 | 0.466 | 0.437 |
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考虑特殊年份和特殊地区的回归结果
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| 变量 | (1) | (2) |
| 截取2016—2022年样本 | 剔除直辖市样本 |
| Patent | Patent |
| Dig | 0.284***(0.007) | 0.282***(0.007) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | -2.183***(0.247) | -2.109***(0.239) |
| N | 13647 | 15627 |
| R2 | 0.466 | 0.437 |
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| 变量 | (1) | (2) |
| 产权性质 | 知识产权保护水平 |
| Patent | Patent |
| Dig | 0.254***(0.007) | 0.450***(0.041) |
| Soe | -0.076(0.054) | |
| Dig_Soe | 0.100***(0.015) | |
| IPP | | 1.481***(0.196) |
| Dig_IPP | | -0.209***(0.052) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | -1.919***(0.237) | -3.181***(0.293) |
| N | 19431 | 18171 |
| R2 | 0.459 | 0.456 |
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异质性分析结果
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| 变量 | (1) | (2) |
| 产权性质 | 知识产权保护水平 |
| Patent | Patent |
| Dig | 0.254***(0.007) | 0.450***(0.041) |
| Soe | -0.076(0.054) | |
| Dig_Soe | 0.100***(0.015) | |
| IPP | | 1.481***(0.196) |
| Dig_IPP | | -0.209***(0.052) |
| Control | Yes | Yes |
| Year | Yes | Yes |
| Indus | Yes | Yes |
| Constants | -1.919***(0.237) | -3.181***(0.293) |
| N | 19431 | 18171 |
| R2 | 0.459 | 0.456 |
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| 变量 | (1) | (2) | (3) |
| Knowledge | Knowledge | Knowledge |
| Dig | 0.259***(0.009) | 0.238***(0.009) | 0.099***(0.008) |
| Control | No | No | Yes |
| Year | No | No | Yes |
| Indus | No | Yes | Yes |
| Constants | 6.283***(0.034) | 3.847***(0.188) | 5.171***(0.208) |
| N | 19431 | 19431 | 19431 |
| R2 | 0.090 | 0.138 | 0.335 |
), ArticleFig(id=1174333267772846818, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表12, caption=
传导机制分析回归结果
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| 变量 | (1) | (2) | (3) |
| Knowledge | Knowledge | Knowledge |
| Dig | 0.259***(0.009) | 0.238***(0.009) | 0.099***(0.008) |
| Control | No | No | Yes |
| Year | No | No | Yes |
| Indus | No | Yes | Yes |
| Constants | 6.283***(0.034) | 3.847***(0.188) | 5.171***(0.208) |
| N | 19431 | 19431 | 19431 |
| R2 | 0.090 | 0.138 | 0.335 |
), ArticleFig(id=1174333267839955683, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) | (4) |
| Patent | Patent | Patent | Patent |
| Tec | 0.315***(0.008) | | | 0.220***(0.019) |
| Ogi | | 0.332***(0.009) | | 0.117***(0.020) |
| Pdu | | | 0.392***(0.012) | -0.002(0.020) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.966***(0.239) | -1.924***(0.239) | -1.857***(0.245) | -1.969***(0.238) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.447 | 0.441 | 0.426 | 0.449 |
), ArticleFig(id=1174333267919647460, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表13, caption=
不同维度数字化转型对下游企业创新的影响结果
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| 变量 | (1) | (2) | (3) | (4) |
| Patent | Patent | Patent | Patent |
| Tec | 0.315***(0.008) | | | 0.220***(0.019) |
| Ogi | | 0.332***(0.009) | | 0.117***(0.020) |
| Pdu | | | 0.392***(0.012) | -0.002(0.020) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | -1.966***(0.239) | -1.924***(0.239) | -1.857***(0.245) | -1.969***(0.238) |
| N | 19431 | 19431 | 19431 | 19431 |
| R2 | 0.447 | 0.441 | 0.426 | 0.449 |
), ArticleFig(id=1174333267986756325, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| PR | Know | Citation |
| Dig | 0.249***(0.022) | 0.011***(0.001) | 0.142***(0.008) |
| Control | Yes | Yes | Yes |
| Year | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes |
| Constants | -10.932***(1.039) | 0.635***(0.024) | -2.150***(0.252) |
| N | 17359 | 19431 | 17202 |
| R2 | 0.316 | 0.163 | 0.476 |
), ArticleFig(id=1174333268062253798, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表14, caption=
数字化转型对不同维度创新的影响结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) |
| PR | Know | Citation |
| Dig | 0.249***(0.022) | 0.011***(0.001) | 0.142***(0.008) |
| Control | Yes | Yes | Yes |
| Year | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes |
| Constants | -10.932***(1.039) | 0.635***(0.024) | -2.150***(0.252) |
| N | 17359 | 19431 | 17202 |
| R2 | 0.316 | 0.163 | 0.476 |
), ArticleFig(id=1174333268150334183, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) | (4) |
| TFP_OLS | TFP_FE | TFP_OP | TFP_LP |
| Dig | 0.008***(0.002) | 0.008***(0.002) | 0.004**(0.002) | 0.006***(0.002) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | 7.111***(0.238) | 7.413***(0.245) | 5.615***(0.213) | 5.715***(0.223) |
| N | 19227 | 19227 | 19227 | 19227 |
| R2 | 0.938 | 0.942 | 0.880 | 0.912 |
), ArticleFig(id=1174333268242608872, tenantId=1146029695717560320, journalId=1146120045056339983, articleId=1172126434106658913, language=CN, label=表15, caption=
数字化转型对下游企业TFP的影响结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | (1) | (2) | (3) | (4) |
| TFP_OLS | TFP_FE | TFP_OP | TFP_LP |
| Dig | 0.008***(0.002) | 0.008***(0.002) | 0.004**(0.002) | 0.006***(0.002) |
| Control | Yes | Yes | Yes | Yes |
| Year | Yes | Yes | Yes | Yes |
| Indus | Yes | Yes | Yes | Yes |
| Constants | 7.111***(0.238) | 7.413***(0.245) | 5.615***(0.213) | 5.715***(0.223) |
| N | 19227 | 19227 | 19227 | 19227 |
| R2 | 0.938 | 0.942 | 0.880 | 0.912 |
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