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Tracking direct and indirect impact on technology and policy of transformative research via ego citation network Cover

Tracking direct and indirect impact on technology and policy of transformative research via ego citation network

By: Xian Li and  Xiaojun Hu  
Open Access
|Jul 2024

Figures & Tables

Figure 1.

Direct and indirect impact on technology and policy originating from a NP.
Direct and indirect impact on technology and policy originating from a NP.

Figure 2.

The CR subnetwork of patent p citing an article.
The CR subnetwork of patent p citing an article.

Figure 3.

The distribution of technological impact of NPs and their generations of citations.
The distribution of technological impact of NPs and their generations of citations.

Figure 4.

The differences of NPs and their generations of citations in technological impact.
The differences of NPs and their generations of citations in technological impact.

Figure 5.

The distribution of policy citations of NPs and their generations of citations.
The distribution of policy citations of NPs and their generations of citations.

Figure 6.

The difference of NPs and their generations of citations in policy citations.
The difference of NPs and their generations of citations in policy citations.

The descriptive statistical of policy documents citing NPs and their generations of citations_

Gene engineeringAstrophysics
NPs1st generation2nd generationNPs1st generation2nd generation
Publication year[1968,2017][1965,2021][1966,2021][1980,2016][1964,2021][1958,2021]
Number of countries (Gini)4 (0.5808)10 (0.7920)19 (0.6697)1 (1)6 (0.5490)17 (0.6968)
Number of organizations (Gini)6 (0.5704)28 (0.7525)78 (0.6650)1 (1)11 (0.5512)56 (0.7269)
Number of organization types (Gini)3 (0.6016)3 (0.8268)3 (0.6646)1 (1)3 (0.6363)3 (0.7575)
Number of categories (Gini)7 (0.8136)17 (0.8950)22 (0.7602)1 (1)11 (0.7397)19 (0.8435)

Linear regression models of direct and indirect impact on technology_

Gene engineering
(1)(2)(3)(4)(5)(6)(7)
1st generation vs NPs−4.859*** (1.218)−4.798*** (1.218)−4.859*** (1.218)−4.697*** (1.217)−4.633*** (1.216)−2.227* (1.175)−2.587** (1.168)
2nd generation vs NPs−5.882*** (1.212)−5.816*** (1.212)−5.881*** (1.212)−5.725*** (1.211)−5.626*** (1.210)−3.423*** (1.169)−3.817*** (1.162)
N-publication citations 1.040−4*** (3.100−5) 1.050−4*** (3.000−5)
N-categories −0.011 (0.073) 0.065 (0.070)
Time lag 0.023*** (0.002) −0.211*** (0.006)
N-references −0.008*** (4.070−4) −0.001*** (1.116−3)
Publication age 0.232*** (0.003)0.324*** (0.004)
Constant9.3739.2869.3849.0489.6012.2822.337
R20.0310.0330.0310.0520.0720.2660.288
N883,944883,944883,944883,944883,944883,944883,944
Astrophysics
(8)(9)(10)(11)(12)(13)(14)
1st generation vs NPs−1.263 (3.949)−1.264 (3.949)−0.809 (3.949)−0.624 (3.916)−1.164 (3.948)1.020 (3.777)1.303 (3.757)
2nd generation vs NPs−1.422 (3.878)−1.411 (3.878)−0.922 (3.879)−0.665 (3.846)−1.344 (3.877)1.509 (3.712)1.955 (3.693)
N-publication citations −3.360−4 (3.170−4) −4.457−5 (3.150−4)
N-categories 0.705** (0.313) 0.332 (0.300)
Time lag 0.149*** (0.028) −0.177*** (0.039)
N-references −0.003 (0.002) 0.002 (0.002)
Publication age 0.197*** (0.016)0.276*** (0.023)
Constant4.5314.5963.1212.8134.603−2.116−3.459
R20.0100.0290.0580.1350.0390.2970.320
N472,534472,534472,534472,534472,534472,534472,534

Descriptive statistics of NPs and their generations of citations_

Gene engineeringAstrophysics
NPs1st generation2nd generationNPs1st generation2nd generation
# Publications7429,687854,18319749,497422,840
# Publications cited by patents474,28081,73741011,462
% Publications cited by patents63.51%14.42%9.57%2.03%0.20%0.35%
Average number of patent citations130.40103.80106.781.52.756.70
Average number of citing IPC groups7.104.774.3733.313.41
# Publications cited by policies115009,008451745
% Publications cited by policies14.86%1.68%1.05%2.03%0.10%0.18%
Average number of policy citations2.271.391.3411.251.49

The VIFs of variables for policy impact_

VariablesGene engineeringAstrophysics
independent variable (groups)1.0021.069
Publication-type1.0791.094
N-research countries1.0341.091
N-publication citations1.0031.074
N-references1.0931.116
Publication age1.0691.098

The VIFs of variables for technological impact_

VariablesGene engineeringAstrophysics
independent variable (groups)1.0011.011
N-categories1.0001.017
N-publication citations1.0101.094
Time lag1.9762.107
N-references1.0501.128
Publication age2.0242.191

Negative binomial regression models of direct and indirect impact on policy_

Gene engineering
(1)(2)(3)(4)(5)(6)(7)
1st generation vs NPs−0.490** (0.204)−0.491** (0.204)−0.476** (0.204)−0.469** (0.204)−0.497** (0.204)−0.466** (0.204)−0.428** (0.204)
2nd generation vs NPs−0.530*** (0.200)−0.530*** (0.200)−0.519*** (0.200)−0.506** (0.200)−0.537*** (0.200)−0.507** (0.201)−0.473** (0.201)
Publication-type 0.001 (0.009) −1.378−3 (9.233−3)
N-research countries 0.036*** (0.006) 3.880−2*** (6.193−3)
N-publication citations 1.261−5*** (9.80−7) 1.236−5*** (9.902−7)
N-references 1.626−4** (7.578−5) 1.676−4** (7.857−5)
Publication age 0.002** (0.001)2.307−3*** (7.958−4)
Constant0.8210.8200.7570.7920.8160.7650.640
Log-likelihood−12402.77−12402.77−12387.26−12362.29−12400.58−12400.51−12340.97
N883,944883,944883,944883,944883,944883,944883,944
Astrophysics
(8)(9)(10)(11)(12)(13)(14)
1st generation vs NPs0.227 (0.525)0.210 (0.525)0.231 (0.525)0.479 (0.543)0.227 (0.525)0.261 (0.525)0.479 (0.542)
2nd generation vs NPs0.397 (0.510)0.384 (0.510)0.404 (0.510)0.671 (0.532)0.397 (0.510)0.450 (0.510)0.695 (0.531)
Publication-type −0.032 (0.032) −2.993−2 (3.394−2)
N-research countries 0.006 (0.013) 7.768−3 (1.383−2)
N-publication citations 4.366−5** (2.214−5) 4.085-5* (2.246−5)
N-references −1.721−5 (2.408−4) 9.576−5 (2.546−4)
Publication age 0.004* (0.002)3.768−3* (2.121−3)
Constant1.155−130.056−0.018−0.2888.214−4−0.137−0.377
Log-likelihood−1143.06−1142.54−1142.96−1141.34−1143.06−1141.43−1139.20
N472,534472,534472,534472,534472,534472,534472,534
DOI: https://doi.org/10.2478/jdis-2024-0018 | Journal eISSN: 2543-683X | Journal ISSN: 2096-157X
Language: English
Page range: 65 - 87
Submitted on: Mar 20, 2024
Accepted on: Jun 14, 2024
Published on: Jul 17, 2024
Published by: Chinese Academy of Sciences, National Science Library
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Xian Li, Xiaojun Hu, published by Chinese Academy of Sciences, National Science Library
This work is licensed under the Creative Commons Attribution 4.0 License.