Article(id=1234106416127070548, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1234106384963400440, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1731513600000, receivedDateStr=2024-11-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772163498192, onlineDateStr=2026-02-27, pubDate=1750348800000, pubDateStr=2025-06-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772163498192, onlineIssueDateStr=2026-02-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772163498192, creator=13701087609, updateTime=1772163498192, updator=13701087609, issue=Issue{id=1234106384963400440, tenantId=1146029695717560320, journalId=1234093305789726721, year='2025', volume='45', issue='6', pageStart='2961', pageEnd='3552', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1772163490763, creator=13701087609, updateTime=1772163969484, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1234108392948682946, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1234106384963400440, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1234108392948682947, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1234106384963400440, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3484, endPage=3495, ext={EN=ArticleExt(id=1234106416420671852, articleId=1234106416127070548, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Carbon emission reduction effect of National Green Data Center pilot on cities, columnId=1234106390126588740, journalTitle=China Environmental Science, columnName=Carbon Emission Control, runingTitle=null, highlight=null, articleAbstract=
This study analyzed the carbon reduction effect of national green data centers on cities and its mechanism. Then, based on the pilot and construction work of national green data centers, a quasi-natural experiment was constructed. Using the difference-in-differences method and panel data of 283 cities from 2011 to 2022, the carbon reduction effect of national green data centers was empirically analyzed, and its mechanism and heterogeneity were explored. The pilot of national green data centers has a significant carbon reduction effect, with a coefficient of -0.013, which is significant at the 5% statistical level. The pilot of national green data centers significantly reduces the carbon emission intensity of cities. This result remains valid after multiple robustness tests, including parallel trend tests, placebo tests, exclusion of selection bias, exclusion of the impact of other policies, and exclusion of the impact of the epidemic. The pilot of national green data centers can reduce the carbon emission intensity of cities by promoting the development level of the digital industry and the green technological innovation level of the region. The impact of the pilot of national green data centers on the development level of the digital industry and the green technological innovation level is significantly positive at the 1% statistical level, with coefficients of 0.039 and 0.061, respectively. The carbon reduction effect of national green data centers is more significant in non-energy-rich cities, cities with high environmental protection levels, and cities with high information levels. The impact of the pilot of national green data centers on these three types of cities is significantly at least at the 10% statistical level, with coefficients of -0.016, -0.017, and -0.016, respectively. Therefore, efforts should be made to promote the green transformation of data centers and expand the scope of the pilot of national green data centers.
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分析了国家绿色数据中心对城市的碳减排效应及其机制,而后以国家绿色数据中心试点与建设工作为基础构建准自然实验,使用双重差分法结合2011~2022年283个城市面板数据,实证分析国家绿色数据中心的碳减排效应,并探索其作用机制与异质性.研究发现:国家绿色数据中心试点具有显著的碳减排效应,系数为-0.013,在5%的统计水平显著,国家绿色数据中心试点显著降低了城市碳排放强度,这一结果在平行趋势检验、安慰剂检验、排除选择偏差、排除其他政策影响、排除疫情影响等多重稳健性检验和处置内生性后依然成立;国家绿色数据中心试点能通过提升数字产业发展水平与地区绿色科技创新水平而降低城市碳排放强度,国家绿色数据中心试点对数字产业发展水平和绿色科技创新水平的影响在1%的统计水平显著为正,系数分别为0.039和0.061;国家绿色数据中心试点的碳减排效应在非能源富裕型城市,高环保水平、高信息水平城市更显著,国家绿色数据中心试点对这3类城市的影响至少在10%的统计水平上显著,系数分别为-0.016、-0.017、-0.016.应当积极推动数据中心绿色转型,扩大国家绿色数据中心试点范围.
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吉雪强(1996-),男,江西吉安人,中国人民大学博士研究生,主要从事数字经济与管理、土地经济与政策、农业生态经济研究.发表论文10余篇.jixueqiang@ruc.edu.cn.
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吉雪强(1996-),男,江西吉安人,中国人民大学博士研究生,主要从事数字经济与管理、土地经济与政策、农业生态经济研究.发表论文10余篇.jixueqiang@ruc.edu.cn.
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国家绿色数据中心试点对城市碳减排效应示意, figureFileSmall=8r+mg6uFOw+q+DnwHUqGJg==, figureFileBig=ymRiHQw93AWSIb3pvPeDVw==, tableContent=null), ArticleFig(id=1234106426176623470, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Fig.2, caption=
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Placebo test, figureFileSmall=sQ1k+lwuf+W51XbBPyOjKg==, figureFileBig=ZpeYaxeUlitE/U+GNJbefg==, tableContent=null), ArticleFig(id=1234106426445058937, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=图3, caption=
安慰剂检验, figureFileSmall=sQ1k+lwuf+W51XbBPyOjKg==, figureFileBig=ZpeYaxeUlitE/U+GNJbefg==, tableContent=null), ArticleFig(id=1234106426566693759, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Fig.4, caption=
The PSM matching results, figureFileSmall=cYGfn8sj+QCKvaKInlbVlw==, figureFileBig=SFVmJH9KtOhFn+O1raktcQ==, tableContent=null), ArticleFig(id=1234106426663162757, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=图4, caption=
PSM匹配结果, figureFileSmall=cYGfn8sj+QCKvaKInlbVlw==, figureFileBig=SFVmJH9KtOhFn+O1raktcQ==, tableContent=null), ArticleFig(id=1234106426747048842, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 1, caption=
Analysis of the impact effects of national green data center pilots on carbon emission intensity
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.013*(-1.928) | -0.013*(-1.903) |
| 控制变量 | 部分控制 | 控制 |
| 常数 | 1.011***(14.223) | 1.014***(13.909) |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,396 | 3,396 |
| R2 | 0.625 | 0.626 |
), ArticleFig(id=1234106426856100750, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表1, caption=
国家绿色数据中心试点对碳排放强度的影响效应分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.013*(-1.928) | -0.013*(-1.903) |
| 控制变量 | 部分控制 | 控制 |
| 常数 | 1.011***(14.223) | 1.014***(13.909) |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,396 | 3,396 |
| R2 | 0.625 | 0.626 |
), ArticleFig(id=1234106426960958355, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 2, caption=
Results of the DIDM model estimation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 估计值 | 标准误差 | 置信区间下边界 | 置信区间上边界 | 观测值 | 状态转换 |
|---|
| 0期效应 | 0.00 | 0.00 | 0.00 | 0.00 | 765.00 | 61.00 |
| 1期效应 | -0.01 | 0.00 | -0.02 | 0.00 | 525.00 | 52.00 |
| 2期效应 | -0.01 | 0.01 | -0.02 | 0.00 | 283.00 | 32.00 |
| 3期效应 | -0.01 | 0.01 | -0.02 | 0.01 | 283.00 | 32.00 |
| 4期效应 | -0.02 | 0.01 | -0.03 | 0.00 | 283.00 | 32.00 |
| 5期效应 | -0.02 | 0.01 | -0.03 | 0.00 | 263.00 | 32.00 |
| 6期效应 | -0.01 | 0.01 | -0.03 | 0.01 | 254.00 | 32.00 |
| 平均效应 | -0.01 | 0.00 | -0.02 | 0.00 | 2656.00 | 273.00 |
| 安慰剂 | 0.00 | 0.00 | -0.01 | 0.00 | 765.00 | 61.00 |
), ArticleFig(id=1234106428382827412, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表2, caption=
DIDM模型估计结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 估计值 | 标准误差 | 置信区间下边界 | 置信区间上边界 | 观测值 | 状态转换 |
|---|
| 0期效应 | 0.00 | 0.00 | 0.00 | 0.00 | 765.00 | 61.00 |
| 1期效应 | -0.01 | 0.00 | -0.02 | 0.00 | 525.00 | 52.00 |
| 2期效应 | -0.01 | 0.01 | -0.02 | 0.00 | 283.00 | 32.00 |
| 3期效应 | -0.01 | 0.01 | -0.02 | 0.01 | 283.00 | 32.00 |
| 4期效应 | -0.02 | 0.01 | -0.03 | 0.00 | 283.00 | 32.00 |
| 5期效应 | -0.02 | 0.01 | -0.03 | 0.00 | 263.00 | 32.00 |
| 6期效应 | -0.01 | 0.01 | -0.03 | 0.01 | 254.00 | 32.00 |
| 平均效应 | -0.01 | 0.00 | -0.02 | 0.00 | 2656.00 | 273.00 |
| 安慰剂 | 0.00 | 0.00 | -0.01 | 0.00 | 765.00 | 61.00 |
), ArticleFig(id=1234106428538016666, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 3, caption=
The PSM-DID estimation results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.011*(-1.659) | -0.011*(-1.660) |
| 控制变量 | 控制 | 控制 |
| 常数 | 1.033***(14.025) | 1.036***(13.989) |
| 匹配方法 | 卡尺邻近匹配 | 卡尺半径匹配 |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,275 | 3,291 |
| R2 | 0.632 | 0.632 |
), ArticleFig(id=1234106428638679967, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表3, caption=
PSM-DID估计结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.011*(-1.659) | -0.011*(-1.660) |
| 控制变量 | 控制 | 控制 |
| 常数 | 1.033***(14.025) | 1.036***(13.989) |
| 匹配方法 | 卡尺邻近匹配 | 卡尺半径匹配 |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,275 | 3,291 |
| R2 | 0.632 | 0.632 |
), ArticleFig(id=1234106428718371745, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 4, caption=
Considers the estimated results of other policy impacts
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.013*(-1.967) | -0.013*(-1.866) | -0.012*(-1.736) | -0.012*(-1.659) |
| 国家级大数据综合试验区试点 | -0.016**(-2.470) | | | |
| 智慧城市试点 | | -0.002(-0.314) | | |
| 宽带中国试点 | | | -0.006(-1.253) | |
| 低碳城市试点 | | | | -0.010(-1.264) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 1.083***(14.698) | 1.012***(13.675) | 1.014***(13.916) | 1.012***(13.854) |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 |
| N | 3,396 | 3,396 | 3,396 | 3,396 |
| R2 | 0.630 | 0.626 | 0.627 | 0.627 |
), ArticleFig(id=1234106428844200869, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表4, caption=
考虑其他政策影响的估计结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.013*(-1.967) | -0.013*(-1.866) | -0.012*(-1.736) | -0.012*(-1.659) |
| 国家级大数据综合试验区试点 | -0.016**(-2.470) | | | |
| 智慧城市试点 | | -0.002(-0.314) | | |
| 宽带中国试点 | | | -0.006(-1.253) | |
| 低碳城市试点 | | | | -0.010(-1.264) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 1.083***(14.698) | 1.012***(13.675) | 1.014***(13.916) | 1.012***(13.854) |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 |
| N | 3,396 | 3,396 | 3,396 | 3,396 |
| R2 | 0.630 | 0.626 | 0.627 | 0.627 |
), ArticleFig(id=1234106428919698343, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 5, caption=
Other tests of robustness
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 | 模型(5) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.011*(-1.836) | -0.013*(-1.654) | -0.011*(-1.682) | -0.013*(-1.693) | -0.021***(-3.543) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 0.303***(5.588) | 0.513***(7.313) | 1.024***(14.110) | 0.889***(11.442) | 1.110***(18.740) |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 |
| N | 3,396 | 3,396 | 3,384 | 2,547 | 3,396 |
| R2 | 0.157 | 0.615 | 0.626 | 0.640 | 0.569 |
), ArticleFig(id=1234106429024555946, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表5, caption=
其他稳健性检验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 | 模型(5) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.011*(-1.836) | -0.013*(-1.654) | -0.011*(-1.682) | -0.013*(-1.693) | -0.021***(-3.543) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 0.303***(5.588) | 0.513***(7.313) | 1.024***(14.110) | 0.889***(11.442) | 1.110***(18.740) |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 |
| N | 3,396 | 3,396 | 3,384 | 2,547 | 3,396 |
| R2 | 0.157 | 0.615 | 0.626 | 0.640 | 0.569 |
), ArticleFig(id=1234106429141996464, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 6, caption=
Results of the instrumental variable model analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 国家绿色数据中心试点 | 模型(2) 碳排放强度 | 模型(3) 国家绿色数据中心试点 | 模型(4) 碳排放强度 |
|---|
| 工具变量1 | 9.859***(8.60) | | | |
| 工具变量2 | | | 351.300***(11.57) | |
| 工具变量对试点政策拟合值 | | -0.086***(-5.86) | | -0.064***(-7.59) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 |
), ArticleFig(id=1234106429263631282, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表6, caption=
工具变量模型分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 国家绿色数据中心试点 | 模型(2) 碳排放强度 | 模型(3) 国家绿色数据中心试点 | 模型(4) 碳排放强度 |
|---|
| 工具变量1 | 9.859***(8.60) | | | |
| 工具变量2 | | | 351.300***(11.57) | |
| 工具变量对试点政策拟合值 | | -0.086***(-5.86) | | -0.064***(-7.59) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 |
), ArticleFig(id=1234106429364294582, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 7, caption=
Impact of the national green data center pilot on mediation variables
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 数字产业发展水平 | 模型(2) 绿色科技创新水平 |
|---|
| 国家绿色数据中心试点 | 0.039***(3.641) | 0.061***(6.410) |
| 控制变量 | 控制 | 控制 |
| 常数 | 0.436***(4.883) | 0.023(0.418) |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,396 | 3,396 |
| R2 | 0.109 | 0.565 |
), ArticleFig(id=1234106429469152187, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表7, caption=
国家绿色数据中心试点对中介变量的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 数字产业发展水平 | 模型(2) 绿色科技创新水平 |
|---|
| 国家绿色数据中心试点 | 0.039***(3.641) | 0.061***(6.410) |
| 控制变量 | 控制 | 控制 |
| 常数 | 0.436***(4.883) | 0.023(0.418) |
| 城市固定效应 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 |
| N | 3,396 | 3,396 |
| R2 | 0.109 | 0.565 |
), ArticleFig(id=1234106429594981312, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=EN, label=Table 8, caption=
The heterogeneity estimation results of the impact of the national green data center pilot on carbon emission intensity
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 | 模型(5) 碳排放强度 | 模型(6) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.016*(-1.690) | -0.014(-1.551) | -0.017**(-1.991) | 0.004(0.384) | -0.016**(-2.095) | -0.005(-0.328) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 0.847***(11.397) | 1.720***(7.750) | 0.827***(8.540) | 1.312***(11.978) | 1.143***(6.526) | 0.919***(12.056) |
| 类型 | 非能源富裕型 | 能源富裕型 | 高环保水平 | 低环保水平 | 高信息水平 | 低信息水平 |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| N | 2,628 | 768 | 2,268 | 1,108 | 852 | 2,543 |
| R2 | 0.666 | 0.521 | 0.684 | 0.553 | 0.722 | 0.608 |
), ArticleFig(id=1234106429666284482, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1234106416127070548, language=CN, label=表8, caption=
国家绿色数据中心试点对碳排放强度影响异质性估计结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 模型(1) 碳排放强度 | 模型(2) 碳排放强度 | 模型(3) 碳排放强度 | 模型(4) 碳排放强度 | 模型(5) 碳排放强度 | 模型(6) 碳排放强度 |
|---|
| 国家绿色数据中心试点 | -0.016*(-1.690) | -0.014(-1.551) | -0.017**(-1.991) | 0.004(0.384) | -0.016**(-2.095) | -0.005(-0.328) |
| 控制变量 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 常数 | 0.847***(11.397) | 1.720***(7.750) | 0.827***(8.540) | 1.312***(11.978) | 1.143***(6.526) | 0.919***(12.056) |
| 类型 | 非能源富裕型 | 能源富裕型 | 高环保水平 | 低环保水平 | 高信息水平 | 低信息水平 |
| 城市固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| 时间固定效应 | 控制 | 控制 | 控制 | 控制 | 控制 | 控制 |
| N | 2,628 | 768 | 2,268 | 1,108 | 852 | 2,543 |
| R2 | 0.666 | 0.521 | 0.684 | 0.553 | 0.722 | 0.608 |
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