060429 Insna
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The document analyzes co-inventor and co-author networks in the photocatalyst industry using social network analysis and finds that university-industry collaboration is mutually beneficial. Visualization of the networks shows the university at the core with heterogeneous private sector ties. Statistical analysis finds that collaboration positively impacts performance for both firms and academics, though the effect is slightly larger for publishing collaborations than patent collaborations for academics. Degree centrality has a mixed effect depending on the network.
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060429 Insna
- 1. The Integrative Study of co-inventor and co-author networks: an Application of Social Network Analysis into Innovation Naohiro Shichijo, Satoko Asai, Kazuhiro Fukuchi, Yasunori Baba The University of Tokyo
- 9. Patents/Paper by year JPO ISI
- 11. By using Netdraw … for ISI dataset
- 20. Results – Correlation of variables JPO ISI
- 21. Impact of academic collaboration for firms in JPO -3313.6973 -3351.311 -3325.3524 -3377.4907 Log likelihood 0.6659 0.6621 0.6647 0.6594 Pseudo R2 0.2482251(0.0560473)*** 0.2002807(0.0558964)*** 0.2375034(0.0560333)*** 0.171754(0.0558143)** Intercept 0.1905714(0.0389795)*** 0.2812762(0.0379571)*** --- --- ISI 0.2696604(0.0309143)*** --- 0.3060861(0.0298381)*** --- JPO_UI 0.1570946(0.0126527)*** 0.137252(0.0125981)*** 0.1602534(0.0126163)*** 0.1368572(0.0126101)*** JPO_Betweenness 1.140077(0.2067015)*** 1.436869(0.2036011)*** 1.133126(0.2066147)*** 1.496505(0.2031328)*** JPO_Closeness -0.1934665(0.0241601)*** -0.1411245(0.023389)*** -0.154876(0.0228475)*** -0.0676579(0.0210569)** JPO_Degree 0.0161073(0.000432)*** 0.015735(0.0004337)*** 0.0159621(0.0004297)*** 0.0154177(0.0004302)*** Inventors 0.1843916(0.0052245)*** 0.1945364(0.0051037)*** 0.1857641(0.005208)*** 0.198912(0.0050517)*** Age Model 1D Model 1C Model 1B Model 1A
- 22. Impact of industry collaboration for academics in ISI -7906.1748 -7926.7518 -7932.3893 -7943.526 Log likelihood 0.8362 0.8357 0.8356 0.8354 Pseudo R2 2.093854(0.0375009)*** 2.108039(0.0374096)*** 2.087986(0.0374922)*** 2.099876(0.0373871)*** Intercept -0.1213819(0.0167851)*** -0.0943293(0.0163225)*** --- ---- JPO 0.1277823(0.019908)*** --- 0.0910752(0.0192973)*** ---- ISI_UI -0.1738035(0.0044776)*** -0.1801285(0.0044031)*** -0.1767731(0.0044438)*** -0.1810177(0.0043815)*** ISI_Betweenness 0.214898(0.0219378)*** 0.2335336(0.0217394)*** 0.221942(0.0219097)*** 0.2346847(0.0217406)*** ISI_Closeness 0.3461472(0.0074475)*** 0.3577703(0.007283)*** 0.3440905(0.00743)*** 0.353146(0.0072223)*** ISI_Degree 0.1275424(0.002706)*** 0.1306606(0.0026651)*** 0.1312057(0.0026628)*** 0.132971(0.0026376)*** PaperByYear 0.1311151(0.001173)*** 0.131172(0.0011672)*** 0.1298657(0.0011602)*** 0.1301556(0.001155)*** Age Model 2D Model 2C Model 2B Model 2A
- 25. Thank you. Have a happy weekend !