PROGRESS IN GEOGRAPHY ›› 2019, Vol. 38 ›› Issue (5): 745-755.doi: 10.18306/dlkxjz.2019.05.011
• Articles • Previous Articles Next Articles
Chaofeng QIAN1,2(), Debin DU1,2,*(
), Xuan HU1,2, Dezhong DUAN1,2
Received:
2018-12-11
Revised:
2019-01-14
Online:
2019-05-28
Published:
2019-05-28
Contact:
Debin DU
E-mail:qcfxyz@foxmail.com;dbdu@re.ecnu.edu.cn
Supported by:
Chaofeng QIAN, Debin DU, Xuan HU, Dezhong DUAN. Does genetic difference influence inter-region technology transfer?Evidence from China’s provincial-level patent transfer data of 2001-2005[J].PROGRESS IN GEOGRAPHY, 2019, 38(5): 745-755.
Tab.1
Data sources and descriptive statistics"
变量名 | 变量描述 | 样本数 | 平均值 | 标准差 | 数据来源 |
---|---|---|---|---|---|
Zhuanli | 某年某2省市之间转让专利数 | 496 | 4.59 | 8.53 | Du et al,1992 |
Gene | 两省之间遗传距离 | 496 | 2.59 | 1.86 | 国家知识产权局专利检索平台 |
szlwd | 转让方所在地转移网络加权度 | 496 | 57.44 | 39.63 | Gephi软件计算所得 |
tzlwd | 受让方所在地转移网络加权度 | 496 | 70.94 | 41.24 | Gephi软件计算所得 |
dist | 转让方与受让方所在地中心点间的大圆距离的自然对数 | 496 | 13.69 | 0.69 | GIS计算所得 |
scspcgdp | 转让方所在地2001年的人均GDP的自然对数 | 496 | 9.27 | 0.63 | 国家统计局网站 |
tcspcgdp | 受让方所在地2002年的人均GDP的自然对数 | 496 | 9.49 | 0.64 | 国家统计局网站 |
gdpgap | 转让方与受让方所在地当年GDP比值 | 496 | 1.38 | 1.93 | 国家统计局网站 |
urbangap | 转让方与受让方所在地当年城市化率(据城镇就业人口比率计算)比值 | 496 | 1.21 | 1.06 | 国家统计局网站 |
jiaoyugap | 转让方与受让方所在地当年每万人大学生数比值 | 496 | 1.17 | 1.55 | 国家统计局网站 |
scoast | 转让方所在地是否沿海 | 496 | 0.23 | 0.42 | 国家地理信息测绘局 |
szhixiashi | 转让方所在地是否为直辖市 | 496 | 0.58 | 0.49 | 国家地理信息测绘局 |
tcoast | 转让方所在地是否沿海 | 496 | 0.72 | 0.45 | 国家地理信息测绘局 |
tzhixiashi | 受让方所在地是否直辖市 | 496 | 0.33 | 0.47 | 国家地理信息测绘局 |
anycoast | 转让方与受让方存在一方所在地是否沿海 | 496 | 0.95 | 0.59 | 国家地理信息测绘局 |
anyzxs | 转让方与受让方存在一方所在地是否为直辖市 | 496 | 0.91 | 0.66 | 国家地理信息测绘局 |
Tab.2
Baseline regression model results"
变量 | 模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 |
---|---|---|---|---|---|---|
gene | -0.335** | -0.385** | -0.221* | -0.396** | -0.238* | -0.243* |
(0.039) | (0.013) | (0.091) | (0.010) | (0.094) | (0.089) | |
dist | -0.303 | -0.454 | -0.324 | 0.0537 | 0.0547 | |
(0.458) | (0.231) | (0.437) | (0.920) | (0.917) | ||
szlwd | 0.0521*** | 0.0454** | 0.0439** | |||
(0.000) | (0.013) | (0.018) | ||||
tzlwd | 0.0465*** | 0.0395*** | 0.0392*** | |||
(0.000) | (0.008) | (0.010) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 5.413*** | 9.689* | 5.079 | 7.044 | 55.75*** | 41.12* |
(0.000) | (0.085) | (0.335) | (0.239) | (0.001) | — | |
样本量 | 496 | 496 | 496 | 496 | 496 | 496 |
Tab.3
Regression results excluding 2001"
变量 | 模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 |
---|---|---|---|---|---|---|
gene | -0.345** | -0.387** | -0.216* | -0.402*** | -0.248* | -0.254* |
(0.034) | (0.011) | (0.093) | (0.009) | (0.083) | (0.077) | |
dist | -0.260 | -0.383 | -0.303 | 0.0751 | 0.0690 | |
(0.542) | (0.329) | (0.485) | (0.890) | (0.898) | ||
szlwd | 0.0558*** | 0.0503*** | 0.0485** | |||
(<0.001) | (0.008) | (0.011) | ||||
tzlwd | 0.0496*** | 0.0400*** | 0.0398*** | |||
(<0.001) | (0.008) | (0.009) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 5.525*** | 9.192 | 3.820 | 0 | 54.70*** | 40.70 |
(<0.001) | (0.115) | (0.487) | — | (0.002) | (0.101) | |
样本量 | 478 | 478 | 478 | 478 | 478 | 478 |
Tab.4
Regression results of coastal samples"
模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 | |
---|---|---|---|---|---|---|
gene | -0.341* | -0.409** | -0.270* | -0.480*** | -0.312* | -0.336* |
(0.054) | (0.016) | (0.064) | (0.009) | (0.077) | (0.075) | |
dist | -0.403 | -0.425 | -0.620 | -0.005 | 0.110 | |
(0.358) | (0.308) | (0.173) | (0.994) | (0.881) | ||
szlwd | 0.0556*** | 0.0547*** | 0.0456** | |||
(<0.001) | (0.005) | (0.029) | ||||
tzlwd | 0.0509*** | 0.0360* | 0.0461** | |||
(<0.001) | (0.053) | (0.018) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 5.538*** | 11.24* | 4.083 | 10.26 | 54.10* | 0 |
(<0.001) | (0.063) | (0.474) | (0.120) | (0.062) | — | |
样本量 | 398 | 398 | 398 | 398 | 383 | 348 |
Tab.5
Regression results of municipality samples"
模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 | |
---|---|---|---|---|---|---|
gene | -0.398** | -0.440** | -0.289* | -0.476** | -0.339* | -0.336* |
(0.042) | (0.022) | (0.093) | (0.018) | (0.073) | (0.075) | |
dist | -0.237 | -0.397 | -0.246 | 0.0635 | 0.110 | |
(0.624) | (0.379) | (0.629) | (0.931) | (0.881) | ||
szlwd | 0.0485*** | 0.0505** | 0.0456** | |||
(<0.001) | (0.013) | (0.029) | ||||
tzlwd | 0.0487*** | 0.0466** | 0.0461** | |||
(<0.001) | (0.014) | (0.018) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 6.184*** | 9.535 | 4.652 | 5.482 | 58.07** | 0 |
(<0.001) | (0.152) | (0.454) | (0.458) | (0.042) | — | |
样本量 | 364 | 364 | 364 | 364 | 348 | 348 |
Tab.6
Regression results without coastal samples"
模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 | |
---|---|---|---|---|---|---|
gene | -0.135 | -0.188 | -0.0994 | -0.198* | -0.0741 | -0.0788 |
(0.139) | (0.101) | (0.369) | (0.098) | (0.581) | (0.562) | |
dist | -0.444 | -0.689** | -0.400 | -0.661 | -0.634 | |
(0.221) | (0.045) | (0.275) | (0.107) | (0.126) | ||
szlwd | 0.0437** | 0.0482** | 0.0479* | |||
(0.017) | (0.045) | (0.055) | ||||
tzlwd | 0.0228*** | 0.0282** | 0.0276** | |||
(<0.001) | (0.011) | (0.014) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 2.586*** | 8.820* | 9.365* | 7.314 | 29.65** | 0 |
(<0.001) | (0.098) | (0.054) | (0.161) | (0.015) | — | |
样本量 | 132 | 132 | 132 | 132 | 130 | 130 |
Tab.7
Regression results without municipality samples"
模型1 | 模型2 | 模型3 | 模型4 | 模型5 | 模型6 | |
---|---|---|---|---|---|---|
gene | -0.0994 | -0.133 | 0.0382 | -0.108 | -0.0435 | -0.0788 |
(0.542) | (0.428) | (0.801) | (0.518) | (0.836) | (0.562) | |
dist | -0.282 | -0.729 | 0.128 | -0.419 | -0.634 | |
(0.638) | (0.273) | (0.861) | (0.614) | (0.126) | ||
szlwd | 0.0417 | 0.0570 | 0.0479* | |||
(0.103) | (0.196) | (0.055) | ||||
tzlwd | 0.0738 | 0.0175 | 0.0276** | |||
(0.223) | (0.694) | (0.014) | ||||
控制经济变量 | 否 | 否 | 否 | 否 | 是 | 是 |
控制时间固定效应 | 否 | 否 | 否 | 是 | 否 | 是 |
常数项 | 3.200*** | 7.141 | 8.519 | -0.531 | -17.45 | 0 |
(<0.001) | (0.397) | (0.306) | (0.960) | (0.598) | — | |
样本量 | 98 | 98 | 98 | 98 | 95 | 130 |
1 | 杜德斌, 何舜辉. 2016. 全球科技创新中心的内涵、功能与组织结构[J]. 中国科技论坛, (2): 10-15. |
[Du D B, He Y H.2016. The connotation,function and organization of global S&T innovation center. Forum on Science and Technology in China, (2): 10-15. ] | |
2 | 段德忠, 杜德斌, 谌颖, 等. 2018. 中国城市创新技术转移格局与影响因素[J]. 地理学报, 73(4): 738-754. |
[Duan D Z, Du D B, Chen Y, et al.2018. Technology transfer in China's city system: Process, pattern and influencing factors. Acta Geographica Sinica, 73(4): 738-754. ] | |
3 | 冯锋, 马雷, 张雷勇. 2012. 外部技术来源对我国工业企业创新绩效影响及区域差异性研究: 基于 SFA 方法的面板数据分析[J]. 中国科学技术大学学报, 42(3): 243-251. |
[Feng F, Ma L, Zhang L Y.2012. Research on effects and regional differences of external sources of technology on innovation efficiency of chinese industrial enterprises: Based on SFA analysis of panel data. Journal of University of Science and Technology of China, 42(3): 243-251. ] | |
4 | 冯锋, 司尚奇, 李徐伟. 2009. 我国跨省区技术转移差异性分析: 基于1996—2007年各省技术转移数据[J]. 中国科技论坛, (11): 77-82. |
[Feng F, Si S Q, Li X W.2009. Analysis of the differences of technology transfer between China's inter-provincial regions: Based on data transfer of provinces from 1996 to 2007. Forum on Science and Technology in China, (11): 77-82. ] | |
5 | 科技部火炬中心. 2017. 2017全国技术市场统计年度报告 [EB/OL]. . |
[Torch Center of the Ministry of Science and Technology. 2017. National technical market statistics annual report in 2017. . ] | |
6 | 林建浩, 赵子乐. 2017. 均衡发展的隐形壁垒: 方言、制度与技术扩散[J]. 经济研究, (9): 182-197. |
[Lin J H, Zhao Z L.2017. Invisible barriers to balanced development: Dialect, institution and technology diffusion. Economic Research Journal, (9): 182-197. ] | |
7 | 刘承良, 管明明, 段德忠. 2018. 中国城际技术转移网络的空间格局及影响因素[J]. 地理学报, 73(8): 1462-1477. |
[Liu C L, Guan M M, Duan D Z.2018. Spatial pattern and influential mechanism of interurban technology transfer network in China. Acta Geographica Sinica, 73(8): 1462-1477. ] | |
8 | 刘凤朝, 马荣康. 2013. 区域间技术转移的网络结构及空间分布特征研究: 基于我国2006—2010省际技术市场成交合同的分析[J]. 科学学研究, 31(4): 529-536. |
[Liu F C, Ma R K.2013. Study on the network structure and spatial distribution of inter-regional technology transfer: Analysis based on inter-provincial technical market transaction of China in 2006-2010. Studies in Science of Science, 31(4): 529-536. ] | |
9 |
吕拉昌, 黄茹, 廖倩. 2016. 创新地理学研究的几个理论问题[J]. 地理科学, 36(5): 653-661.
doi: 10.13249/j.cnki.sgs.2016.05.002 |
[Lu L C, Huang R, Liao Q.2016. Several theoretical issues on innovation geography. Scientia Geographica Sinica, 36(5): 653-661. ]
doi: 10.13249/j.cnki.sgs.2016.05.002 |
|
10 | 阮建青, 王凌, 李垚. 2016. 创新差异的基因解释[J]. 管理世界, (6): 107-117. |
[Ruan J Q, Wang L, Li Y.2016. A genetic explanation of innovation difference. Management World, (6): 107-117. ] | |
11 | 石书德, 高建. 2009. 知识流动、创业活动对经济增长的影响: 一种解释中国区域经济差异的观点[J]. 科学学与科学技术管理, (11): 134-140. |
[Shi S D, Gao J.2009. Knowledge flow and entrepreneurship activities drive economic development: A perspective to explain the economic variation among regions in China. Science of Science and Management of S & T, (11): 134-140. ] | |
12 | 孙玮, 王九云, 成力为. 2010. 技术来源与高技术产业创新生产率: 基于典型相关分析的中国数据实证研究[J]. 科学学研究, 28(7): 1088-1093. |
[Sun W, Wang J Y, Cheng L W.2010. Knowledge enterprise intellectual capital structure research in the dimension: An empirical analysis of the process of knowledge creation. Studies in Science of Science, 28(7): 1088-1093. ] | |
13 | 王珊珊, 王宏起. 2012. 技术创新扩散的影响因素综述[J]. 情报杂志, 31(6): 197-201. |
[Wang S S, Wang H Q.2012. A review on the influencing factors of technological innovation diffusion. Journal of Inteligence, 31(6): 197-201. ] | |
14 | 温芳芳. 2013. 基于专利计量的区域间技术合作网络研究[J]. 情报杂志, 32(11): 32-36. |
[Wen F F.2013. Study on inter-regional technology collaboration network based on the patent bibliometrics. Journal of Intelligence, 32(11): 32-36. ] | |
15 | 徐庆富, 康旭东, 杨中楷, 等. 2017. 基于专利权转让的我国省际技术转移特征研究[J]. 情报杂志, 36(7): 66-72. |
[Xu Q F, Kang X D, Yang Z K, et al.2017. Research on the characteristics of inter-provincial technology transfer in china based on patent right transfer. Journal of Intelligence, 36(7): 66-72. ] | |
16 | 颜子明, 杜德斌, 刘承良, 等. 2018. 西方创新地理研究的知识图谱可视化分析[J]. 地理学报, 73(2): 362-379. |
[Yan Z M, Du D B, Liu C L, et al.2018. Visualization analysis of mapping knowledge domain on Western geography of innovation. Acta Geographica Sinica, 73(2): 362-379. ] | |
17 | 张学良, 李培鑫, 李丽霞. 2017. 政府合作、市场整合与城市群经济绩效: 基于长三角城市经济协调会的实证检验[J]. 经济学(季刊), 16(4): 1563-1582. |
[Zhang X L, Li P X, Li L X.2017. Government cooperation, market integration and economic performance of city cluster: Evidence from the Yangtze River Delta urban economic coordination committee. China Economic Quarterly, 16(4): 1563-1582. ] | |
18 | 赵尚梅, 史宏梅, 杜华东. 2013. 基于网络模型的跨地区技术转移的研究[J]. 研究与发展管理, 25(5): 54-61. |
[Zhao S M, Shi H M, Du H D.2013. Analysis of cross-regional technology transfer based on network model. R&D Management, 25(5): 54-61. ] | |
19 | 周俭初, 韩卫兵, 郁红. 2010. 基于交易费用理论分析的产学研结合模式[J]. 现代管理科学, (8): 64-66. |
[Zhou J C, Han W B, Yu H.2010. The model of industry-university-research based on the analysis of transaction cost theory. Modern Management Science, (8): 64-66. ] | |
20 | 周密, 孙浬阳. 2016. 专利权转移、空间网络与京津冀协同创新研究[J]. 科学学研究, 34(11): 1736-1743. |
[Zhou M, Sun L Y.2016. The transfer of patent right, characteristics of spatial network and the way for regional collaborative innovation in the area of Beijing, Tianjin and Hebei. Studies in Science of Science, 34(11): 1736-1743. ] | |
21 |
Bai Y, Kung K S.2011. Genetic distance and income difference: Evidence from changes in China's cross-strait relations[J]. Economics Letters, 110(3): 255-258.
doi: 10.1016/j.econlet.2010.11.027 |
22 | Bai Y, Kung K S.2015a. Diffusing knowledge while spreading god's message: Protestantism and economic prosperity in china, 1840-1920[J]. Journal of the European Economic Association, 134: 669-698. |
23 | Bai Y, Kung K S.2015b. Does genetic distance have a barrier effect on technology diffusion? Evidence from historical China[C]. The 2th International Symposium on Quantitative Historical Research, Beijing. |
24 | Conley T G, Udry C R.2010. Learning about a new technology: Pineapple in Ghana[J]. American Economic Review, 100(1): 35-69. |
25 |
Cook C J, Fletcher J M.2018. High-school genetic diversity and later-life student outcomes: Micro-level evidence from the Wisconsin longitudinal study[J]. Journal of Economic Growth, 23(3): 307-339.
doi: 10.1007/s10887-018-9157-3 |
26 | Du R F, Yuan Y D, Hwang J, et al.1992. Chinese surnames and the genetic differences between North and South China[J]. Journal of Chinese Linguistics Monograph, 5: 1-93. |
27 | Eaton J, Kortum S.1995. Trade in ideas: Patenting and productivity in the OECD [R/OL]. Nber Working Papers, No. 5049. doi: 10.3386/w5049. |
28 |
Ferrero D M, Moeller L M, Osakada T, et al.2013. A juvenile mouse pheromone inhibits sexual behaviour through the vomeronasal system[J]. Nature, 502: 368-371.
doi: 10.1038/nature12579 |
29 | Finkelhor D, Turner H, Ormrod R.2006. Kid's stuff: The nature and impact of peer and sibling violence on younger and older children[J]. Child Abuse & Neglect, 30(12): 1401-1421. |
30 | Fredrik S.1996. International transfer of knowledge: The role of international trade and geographic proximity[J]. Review of World Economic, 132: 97-115. |
31 | Griliches Z.1990. Patent statistics as economic indicators: A survey[J]. Journal of Economic Literature, 284: 1661-1707. |
32 |
Haga S, Hattori T, Sato T, et al.2010. The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptor[J]. Nature, 466: 118-122.
doi: 10.1038/nature09142 |
33 | Keller W.2002. Geographic localization of international technology diffusion[J]. American Economic Review, 921: 120-142. |
34 | Kerr W R.2008. Ethnic scientific communities and international technology diffusion[J]. Review of Economics Statistics, 903: 518-537. |
35 | Naaijen J, Bralten J, Poelmans G, et al.2017. Glutamatergic and GABAergic gene sets in attention-deficit/hyperactivity disorder: Association to overlapping traits in ADHD and autism [J/OL]. Translational Psychiatry, 7. doi:10.1038/tp. 2016.273. |
36 | Nei M.1978. The theory of genetic distance and evolution of human races[J]. Japanese Journal of Human Genetics, 234: 341-369. |
37 |
Romer P M.1990. Endogenous technological change[J]. Journal of Political Economy, 98(5): S71-S102.
doi: 10.1086/261725 |
38 | Schumpeter J A.1934. The theory of economics development [M]. Oxford: Oxford University Press. |
39 | Spolaore E, Wacziarg R.2011. Long-term barriers to the international diffusion of innovations [R/OL]. NBER Working Paper, No. 17271. doi: 10.3386/w17271. |
40 |
Wen B, Li H, Lu D, et al.2004. Genetic evidence supports demic diffusion of han culture[J]. Nature, 431: 302-305.
doi: 10.1038/nature02878 |
41 | Zhou K, Chen W, Buitelaar J, et al.2008. Genetic heterogeneity in ADHD: DAT1 gene only affects probands without cd[J]. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 147(8): 1481-1487. |
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[9] | DU Xinru, LU Zi, LI Renjie, DONG Yaqing, GAO Wei. Estimation of time delay cost of hub airports in China, air routes effect and comparison with the United States [J]. PROGRESS IN GEOGRAPHY, 2020, 39(7): 1160-1171. |
[10] | ZHOU Guohua, ZHANG Rujiao, HE Yanhua, DAI Liuyan, ZHANG Li. Optimization of rural settlements and the governance of rural relative poverty [J]. PROGRESS IN GEOGRAPHY, 2020, 39(6): 902-912. |
[11] | TAN Xuelan, JIANG Lingxiao, WANG Zhenkai, AN Yue, CHEN Min, REN Hui. Rural poverty in China from the perspective of geography: Origin, progress, and prospect [J]. PROGRESS IN GEOGRAPHY, 2020, 39(6): 913-923. |
[12] | LIU Xiaopeng, CHENG Jing, ZHAO Xiaoyong, MIAO Hong, WEI Jingyi, ZENG Duan, MA Cunxia. Sustainable poverty reduction of China in a view of development geography [J]. PROGRESS IN GEOGRAPHY, 2020, 39(6): 892-901. |
[13] | GUO Jianke, HOU Yajie, HE Yao. Characteristics of change of the China-Europe port shipping network under the Belt and Road Initiative [J]. PROGRESS IN GEOGRAPHY, 2020, 39(5): 716-726. |
[14] | SUN Na, ZHANG Meiqing. Network structure and evolution characteristics of cities in China based on high-speed railway transport flow [J]. PROGRESS IN GEOGRAPHY, 2020, 39(5): 727-737. |
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