Article(id=1208052412003230303, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208052403727864410, articleNumber=1671-1807(2025)12-0083-09, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1736179200000, receivedDateStr=2025-01-07, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1765951739550, onlineDateStr=2025-12-17, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765951739550, onlineIssueDateStr=2025-12-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765951739550, creator=13701087609, updateTime=1765951739550, updator=13701087609, issue=Issue{id=1208052403727864410, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='12', pageStart='1', pageEnd='400', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765951737577, creator=13701087609, updateTime=1765951864175, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1208052934781281080, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208052403727864410, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1208052934781281081, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1208052403727864410, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=83, endPage=91, ext={EN=ArticleExt(id=1208052412548489854, articleId=1208052412003230303, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Influence of Knowledge Spillover from Industrial Agglomeration in Digital Economy on the Innovation Ability of Enterprises: Based on Spatial Durbin Model, columnId=1151877660386357290, journalTitle=Science Technology and Industry, columnName=Industrial Development, runingTitle=null, highlight=null, articleAbstract=
Digital economy has become an irreversible development trend, and the national level actively advocates the cluster development of digital economy related industries. Given that Guangdong Province occupies a leading position in the development of digital economy in China, it is of profound practical significance to explore the specific impact and mechanism of different levels of industrial agglomeration and knowledge spillover effect on the innovation ability of digital economy enterprises in Guangdong Province. Based on the digital economy patent data of listed enterprises and the economic indicators of prefecture-level cities in Guangdong Province,threshold regression model and spatial Durbin model were applied to conduct in-depth analysis. The research conclusions are as follows. The agglomeration level of digital economy industry shows a significant single threshold effect on the innovation ability of enterprises, and the relationship between the two shows an inverted “U” shape. The innovation capability of digital economy enterprises presents a distinct spatial agglomeration characteristic, and the knowledge spillover effect has a significant positive promoting effect on the improvement of enterprise innovation capability.
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数字经济已成为不可逆转的发展趋势,国家层面积极倡导数字经济相关产业的集群化发展。鉴于广东省在全国数字经济发展中占据领先地位,探究不同层次的产业集聚水平与知识溢出效应对广东省数字经济企业创新能力的具体影响及其作用机理,具备深厚的实践意义。依托于上市企业数字经济专利数据与广东省各地级市的经济指标,运用门限回归模型及空间杜宾模型进行深入剖析,得出结论:数字经济产业的集聚水平对企业创新能力展现显著的单一门限效应,二者之间的关系呈现出倒“U”形态势;数字经济企业的创新能力呈现鲜明的空间集聚特性,且知识溢出效应对企业创新能力的提升具有显著的正面推动作用。
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薛小龙(1974—),男,河南焦作人,博士,教授,研究方向为重大工程管理、数字技术创新管理、数字经济等
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朱慧(1988—),女,广东阳江人,博士,副教授,研究方向为信息系统与信息管理、商务智能技术、数据分析与数据挖掘等;
黄浩淋(2000—),女,广东东莞人,硕士研究生,研究方向为数字经济创新管理、社交媒介、大数据分析;
蒙映楠(2000—),女,广东广州人,硕士研究生,研究方向为数字经济创新能力。
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朱慧(1988—),女,广东阳江人,博士,副教授,研究方向为信息系统与信息管理、商务智能技术、数据分析与数据挖掘等;
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朱慧(1988—),女,广东阳江人,博士,副教授,研究方向为信息系统与信息管理、商务智能技术、数据分析与数据挖掘等;
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黄浩淋(2000—),女,广东东莞人,硕士研究生,研究方向为数字经济创新管理、社交媒介、大数据分析;
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黄浩淋(2000—),女,广东东莞人,硕士研究生,研究方向为数字经济创新管理、社交媒介、大数据分析;
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蒙映楠(2000—),女,广东广州人,硕士研究生,研究方向为数字经济创新能力。
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蒙映楠(2000—),女,广东广州人,硕士研究生,研究方向为数字经济创新能力。
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2016—2020年局部莫兰指数散点图, figureFileSmall=EnNAVSmpSSWbq8uaDuvbMg==, figureFileBig=PXKiues3ygbvNGhoP4KCsQ==, tableContent=null), ArticleFig(id=1208083796545606143, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测对象 | 观测字段 |
| 企业 | 数字经济专利申请数 |
| 主营业务收入 |
| 城市 | 所有产业的主营业务收入 |
| GDP |
| 政府财政支出 |
| 实际利用外商直接投资额 |
| 研究与开发投入 |
| 研究与开发人员数 |
), ArticleFig(id=1208083796730155534, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=CN, label=表1, caption=
数据表字段
, figureFileSmall=null, figureFileBig=null, tableContent=
| 观测对象 | 观测字段 |
| 企业 | 数字经济专利申请数 |
| 主营业务收入 |
| 城市 | 所有产业的主营业务收入 |
| GDP |
| 政府财政支出 |
| 实际利用外商直接投资额 |
| 研究与开发投入 |
| 研究与开发人员数 |
), ArticleFig(id=1208083796885344793, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量类型 | 变量名称 | 变量符号 | 变量定义及说明 |
| 被解释变量 | 数字经济上市企业创新能力 | lnIC | 使用企业专利申请数(含发明申请-有效、发明申请-审中、发明申请-PCT-有效期内)来衡量数字经济企业的创新能力 |
| 核心解释变量 | 产业集聚指标 | LQ | 产业的专业化程度以及在特定区域内的集中化程度 |
| 控制变量 | 政府财政支出 | gov | 采用政府财政支出占GDP的比例来反映政府对区域经济活动的干预水平 |
| 研究与开发投入 | rd | 以研究与开发投入在GDP的占比来反映 |
| 外商直接投资 | FDI | 采用实际利用外商直接投资额占GDP的比例表示 |
| 人力资本 | lnhu | 采用研究与开发人员数进行表示 |
), ArticleFig(id=1208083797036339748, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=CN, label=表2, caption=
变量定义
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量类型 | 变量名称 | 变量符号 | 变量定义及说明 |
| 被解释变量 | 数字经济上市企业创新能力 | lnIC | 使用企业专利申请数(含发明申请-有效、发明申请-审中、发明申请-PCT-有效期内)来衡量数字经济企业的创新能力 |
| 核心解释变量 | 产业集聚指标 | LQ | 产业的专业化程度以及在特定区域内的集中化程度 |
| 控制变量 | 政府财政支出 | gov | 采用政府财政支出占GDP的比例来反映政府对区域经济活动的干预水平 |
| 研究与开发投入 | rd | 以研究与开发投入在GDP的占比来反映 |
| 外商直接投资 | FDI | 采用实际利用外商直接投资额占GDP的比例表示 |
| 人力资本 | lnhu | 采用研究与开发人员数进行表示 |
), ArticleFig(id=1208083797178946100, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量类型 | 变量名称 | 观测值 | 均值 | 标准差 | 最小值 | 最大值 |
| 被解释变量 | lnIC | 80 | 3.026 543 | 2.380 492 | 0.000 000 | 8.205 528 |
| 核心解释变量 | LQ | 80 | 2.112 957 | 2.555 833 | 0.189 084 | 10.655 910 |
| 控制变量 | gov | 80 | 0.176 731 | 0.080 721 | 0.079 469 | 0.394 890 |
| rd | 80 | 0.017 806 | 0.012 241 | 0.002 631 | 0.054 426 |
| FDI | 80 | 0.012 005 | 0.013 019 | 0.000 539 | 0.062 145 |
| lnhu | 80 | 9.749 491 | 1.512 602 | 7.295 056 | 12.752 300 |
), ArticleFig(id=1208083797329941058, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=CN, label=表3, caption=
变量的描述性统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量类型 | 变量名称 | 观测值 | 均值 | 标准差 | 最小值 | 最大值 |
| 被解释变量 | lnIC | 80 | 3.026 543 | 2.380 492 | 0.000 000 | 8.205 528 |
| 核心解释变量 | LQ | 80 | 2.112 957 | 2.555 833 | 0.189 084 | 10.655 910 |
| 控制变量 | gov | 80 | 0.176 731 | 0.080 721 | 0.079 469 | 0.394 890 |
| rd | 80 | 0.017 806 | 0.012 241 | 0.002 631 | 0.054 426 |
| FDI | 80 | 0.012 005 | 0.013 019 | 0.000 539 | 0.062 145 |
| lnhu | 80 | 9.749 491 | 1.512 602 | 7.295 056 | 12.752 300 |
), ArticleFig(id=1208083797447381580, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1208052412003230303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 模型 | F | P | BS次数 | 临界值 |
| 1% | 5% | 10% |
| 产业集聚 | 单一门槛 | 15.15* | 0.035 | 400 | 17.914 6 | 14.098 9 | 11.941 5 |
| 双重门槛 | 6.07 | 0.465 | 400 | 23.688 7 | 15.938 5 | 12.546 2 |
| 三重门槛 | 6.53 | 0.660 | 400 | 57.358 8 | 46.570 0 | 43.062 4 |
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门限估计值显著性检验
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| 变量 | 模型 | F | P | BS次数 | 临界值 |
| 1% | 5% | 10% |
| 产业集聚 | 单一门槛 | 15.15* | 0.035 | 400 | 17.914 6 | 14.098 9 | 11.941 5 |
| 双重门槛 | 6.07 | 0.465 | 400 | 23.688 7 | 15.938 5 | 12.546 2 |
| 三重门槛 | 6.53 | 0.660 | 400 | 57.358 8 | 46.570 0 | 43.062 4 |
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| 变量 | 模型 | 门槛估计值 | 95%置信区间 |
| 产业集聚 | 单一门限 | 1.438 5 | [1.423 7,1.525 6] |
| 双重门限 | 0.671 6 | [0.666 2,0.712 2] |
| 三重门限 | 2.131 2 | [2.070 2,2.174 9] |
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门限估计结果
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| 变量 | 模型 | 门槛估计值 | 95%置信区间 |
| 产业集聚 | 单一门限 | 1.438 5 | [1.423 7,1.525 6] |
| 双重门限 | 0.671 6 | [0.666 2,0.712 2] |
| 三重门限 | 2.131 2 | [2.070 2,2.174 9] |
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| 变量 | 系数估计值 | T |
| LQ≤1.438 5 | 2.075** | 3.42 |
| LQ>1.438 5 | 0.075 | 0.34 |
| gov | 28.702*** | 4.18 |
| rd | 75.869 | 1.32 |
| FDI | -8.253 | -0.32 |
| lnhu | 1.629* | 2.27 |
| 常数项 | -19.998** | -3.01 |
| R2 | 0.564 6 |
| 观测值 | 80 |
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门限回归估计结果
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| 变量 | 系数估计值 | T |
| LQ≤1.438 5 | 2.075** | 3.42 |
| LQ>1.438 5 | 0.075 | 0.34 |
| gov | 28.702*** | 4.18 |
| rd | 75.869 | 1.32 |
| FDI | -8.253 | -0.32 |
| lnhu | 1.629* | 2.27 |
| 常数项 | -19.998** | -3.01 |
| R2 | 0.564 6 |
| 观测值 | 80 |
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| 年份 | Moran’s I | E(I) | SD(I) | Z | P |
| 2016 | 0.320 | -0.067 | 0.093 | 4.147 | 0.000 |
| 2017 | 0.421 | -0.067 | 0.097 | 5.020 | 0.000 |
| 2018 | 0.450 | -0.067 | 0.098 | 5.281 | 0.000 |
| 2019 | 0.416 | -0.067 | 0.098 | 4.933 | 0.000 |
| 2020 | 0.401 | -0.067 | 0.097 | 4.806 | 0.000 |
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创新能力的全局莫兰指数
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| 年份 | Moran’s I | E(I) | SD(I) | Z | P |
| 2016 | 0.320 | -0.067 | 0.093 | 4.147 | 0.000 |
| 2017 | 0.421 | -0.067 | 0.097 | 5.020 | 0.000 |
| 2018 | 0.450 | -0.067 | 0.098 | 5.281 | 0.000 |
| 2019 | 0.416 | -0.067 | 0.098 | 4.933 | 0.000 |
| 2020 | 0.401 | -0.067 | 0.097 | 4.806 | 0.000 |
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| 检验模型 | 统计量 | 自由度 | P |
空间 误差 | Moran’s I | 138.281 | 1 | 0.000 |
| Lagrange multiplier | 8.093 | 1 | 0.004 |
| Robust Lagrange multiplier | 3.186 | 1 | 0.074 |
空间 滞后 | Lagrange multiplier | 10.862 | 1 | 0.001 |
| Robust Lagrange multiplier | 5.955 | 1 | 0.015 |
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LM检验
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| 检验模型 | 统计量 | 自由度 | P |
空间 误差 | Moran’s I | 138.281 | 1 | 0.000 |
| Lagrange multiplier | 8.093 | 1 | 0.004 |
| Robust Lagrange multiplier | 3.186 | 1 | 0.074 |
空间 滞后 | Lagrange multiplier | 10.862 | 1 | 0.001 |
| Robust Lagrange multiplier | 5.955 | 1 | 0.015 |
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| 变量 | 个体固定 SDM | 时间固定 SDM | 时间固定 SAR | 时间固定 SEM |
| LQ | 0.359* | 0.285*** | 0.240*** | 0.215*** |
| gov | 14.590** | -0.619 | 1.127 | 1.183 |
| rd | 23.492 | 79.291* | 61.228 | 70.877** |
| FDI | -19.202 | 2.494 | 18.602 | 23.635** |
| lnhu | 0.721 | 0.296 | 0.675* | 0.606** |
| W×LQ | 1.140* | -0.408 | | |
| W×gov | 31.399* | 1.825 | | |
| W×rd | 263.107* | 200.022 | | |
| W×FDI | -91.673 | 83.714 | | |
| W×lnhu | -0.282 | -0.990 | | |
| R2 | 0.649 | 0.847 | 0.838 | 0.837 |
| Log-lik | -53.374 | -87.486 | -92.489 | -89.257 |
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空间计量模型回归结果
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| 变量 | 个体固定 SDM | 时间固定 SDM | 时间固定 SAR | 时间固定 SEM |
| LQ | 0.359* | 0.285*** | 0.240*** | 0.215*** |
| gov | 14.590** | -0.619 | 1.127 | 1.183 |
| rd | 23.492 | 79.291* | 61.228 | 70.877** |
| FDI | -19.202 | 2.494 | 18.602 | 23.635** |
| lnhu | 0.721 | 0.296 | 0.675* | 0.606** |
| W×LQ | 1.140* | -0.408 | | |
| W×gov | 31.399* | 1.825 | | |
| W×rd | 263.107* | 200.022 | | |
| W×FDI | -91.673 | 83.714 | | |
| W×lnhu | -0.282 | -0.990 | | |
| R2 | 0.649 | 0.847 | 0.838 | 0.837 |
| Log-lik | -53.374 | -87.486 | -92.489 | -89.257 |
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| 模型 | 本地 | 外溢 | 直接效应 | 间接效应 | 总效应 |
| 个体固定SDM | 0.359* | 1.140* | 0.366* | 1.218* | 1.584** |
| 时间固定SDM | 0.285*** | -0.408 | 0.295*** | -0.403 | -0.108 |
| 时间固定SAR | 0.240*** | | 0.242*** | 0.019 | 0.261** |
| 时间固定SEM | 0.215*** | | | | |
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产业集聚的空间效应分解
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| 模型 | 本地 | 外溢 | 直接效应 | 间接效应 | 总效应 |
| 个体固定SDM | 0.359* | 1.140* | 0.366* | 1.218* | 1.584** |
| 时间固定SDM | 0.285*** | -0.408 | 0.295*** | -0.403 | -0.108 |
| 时间固定SAR | 0.240*** | | 0.242*** | 0.019 | 0.261** |
| 时间固定SEM | 0.215*** | | | | |
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