JAIST Repository: 国際共著論文の被引用数が多い理由 : 研究者のパフォーマンスの高さとの関係

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JAIST Repository

https://dspace.jaist.ac.jp/ Title 国際共著論文の被引用数が多い理由 : 研究者のパフォーマンスの高さとの関係 Author(s) 加藤, 真紀 Citation 年次学術大会講演要旨集, 28: 190-193 Issue Date 2013-11-02

Type Conference Paper Text version publisher

URL http://hdl.handle.net/10119/11696

Rights

本著作物は研究・技術計画学会の許可のもとに掲載するものです。This material is posted here with permission of the Japan Society for Science Policy and Research Management.

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㸯)㸮㸱

ᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡀከ࠸⌮⏤㸸◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫࡢ㧗ࡉ࡜ࡢ㛵ಀ

ۑຍ⸨┿⣖㸦⛉Ꮫᢏ⾡࣭Ꮫ⾡ᨻ⟇◊✲ᡤ㸧

1㸬ࡣࡌࡵ࡟

㏆ᖺࠊ᪥ᮏࡢ◊✲ຊࡣపୗࡋ࡚࠾ࡾࠊࡑࡢཎᅉࡢ_{1 ࡘ࡜ࡋ࡚ࠊᅜ㝿ඹⴭㄽᩥᩘࡢᑡ࡞ࡉࡀᣦ᦬ࡉࢀ࡚} ࠸ࡿ㸦㜰࣭᱓ཎ_{2013㸧ࠋ༢ⴭㄽᩥࡸྠ୍ᅜࡢᶵ㛵࡟ᒓࡍࡿⴭ⪅ࡢࡳ࡟ࡼࡗ࡚᭩࠿ࢀࡓㄽᩥ㸦༢୍ᅜㄽᩥ㸧} ࡜ẚ㍑ࡋ࡚ᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡣከ࠸(Glänzel 2001)ࠋࡑࡢ⌮⏤࡜ࡋ࡚ࡣࠊ౛࠼ࡤ◊✲⪅ࢳ࣮࣒ࡢከ ᵝᛶࡀ㧗ࡲࡿࡇ࡜࡟ࡼࡿ࢔࢖ࢹ࢔ࡢቑຍ_{(Adams et al. 2005)ࡸⴭ⪅ࢆ▱ࡿㄞ⪅ࡢከࡉ (Schmoch &} Schubert 2008)࡞࡝ࡀᣦ᦬ࡉࢀ࡚ࡁࡓࡀࠊᐇドⓗ࡞ศᯒ⤖ᯝࡣ♧ࡉࢀ࡚ࡇ࡞࠿ࡗࡓࠋࡇࡢࡼ࠺࡞୰࡛ࠊ Abramo et al. (2011)ࡣ࢖ࢱࣜ࢔ࡢ◊✲⪅ࢆᑐ㇟࡜ࡋࡓศᯒ⤖ᯝ࠿ࡽࠊࣃࣇ࢛࣮࣐ࣥࢫ㸦ㄽᩥᩘ࡜ᖹᆒ⿕ᘬ ⏝ᩘ㸧ࡢ㧗࠸◊✲⪅ࡀᅜ㝿ඹⴭㄽᩥࢆⓎ⾲ࡍࡿഴྥࢆ♧ࡋࡓࠋ

◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ࡜ᅜ㝿ඹྠ◊✲࡟⧅ࡀࡿᅜ㝿ⓗ࡞ࢿࢵࢺ࣮࣡ࢡࡣ◊✲㈨㔠ࢆ௓ࡋ࡚⤖ࡧࡘ ࡃ࡜⪃࠼ࡽࢀࡿࠋ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ࡜◊✲㈨㔠ࡢṇࡢ┦㛵㛵ಀࡣከࡃࡢᅜ࡛☜ㄆࡉࢀ࡚࠸ࡿ㸦࢔ ࣓ࣜ࢝㸸Bozeman & Corley (2004) EU㸸Defazio (2009) ࠊ࢔ࣝࢮࣥࢳࣥ㸸 Ubfal & Maffiolo (2011)㸧ࠋBozeman & Corley (2004) ࡣࠊ◊✲㈨㔠ࡀከ࠸◊✲⪅ࡣࡼࡾᗈ࠸㸦ᅜ㝿ⓗ࡞㸧ࢿࢵࢺ࣮࣡ࢡࢆᣢࡘ࡜⤖ㄽ௜ࡅ࡚࠸ ࡿࠋࣃࣇ࢛࣮࣐ࣥࢫࡀ㧗࠸◊✲⪅ࡣࡼࡾከࡃࡢ◊✲㈨㔠ࢆ⋓ᚓࡋࢿࢵࢺ࣮࣡ࢡࢆᅜ㝿ⓗ࡟ᗈࡆࡿࡇ࡜࡛ ⿕ᘬ⏝ᩘࡀከ࠸ᅜ㝿ඹⴭㄽᩥࢆⓎ⾲ࡍࡿࠊ࡜࠸࠺ㄝ᫂ࡣ⣡ᚓ࡛ࡁࡿࠋࡶࡗ࡜ࡶ᪤Ꮡ◊✲࡛ᣦ᦬ࡉࢀࡓࡼ ࠺࡟ࠊ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫࡢ㧗ࡉ௨እࡢせᅉࡀᏑᅾࡍࡿྍ⬟ᛶࡶṧࡿࠋࡑࡇ࡛ᮏ◊✲ࡣ௨ୗࡢㄪᰝ タၥࢆタࡅᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡀከ࠸⫼ᬒ࡟㛵ࡋ࡚ᐇドศᯒࢆ⾜ࡗࡓࠋ ㄪᰝタၥ㻌 1㸬 ᅜ㝿ඹⴭㄽᩥᩘࡀከ࠸◊✲⪅ࡣࠊࡑ࠺࡛࡞࠸◊✲⪅ࡼࡾࡶ◊✲ࣃࣇ࢛࣮࣐ࣥࢫ㸦ㄽᩥᩘࡸᖹᆒ⿕ ᘬ⏝ᩘ㸧ࡀ㧗࠸ࡢ࠿㸦_{Abramo et al. (2011)࡜ࡣ␗࡞ࡿࢹ࣮ࢱࢭࢵࢺࢆ⏝࠸࡚㡹೺ᛶࢆ☜ㄆࡍࡿ㸧ࠋ} 2㸬 ୖグഴྥࡣࠊ᪥ᮏ࡛ࡶ☜ㄆࡉࢀࡿࡢ࠿ࠋ 3㸬 ᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡀከ࠸⌮⏤࡟ࡣࠊ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ௨እࡢせᅉࡶྵࡲࢀࡿࡢ࠿

2㸬ࣔࢹࣝ

ᣦᶆ Abramo et al. (2011)ࢆᇶ࡟ࠊ◊✲⪅ࢆ༢఩࡜ࡋ࡚௨ୗࡢ 6 ࡘࡢᣦᶆࢆ⏝࠸ࡿࠋ ࠙ࣃࣇ࢛࣮࣐ࣥࢫᣦᶆࠚ ࣭ ࣃࣇ࢛࣮࣐ࣥࢫ _{(P): ㄽᩥᩘ㸦ᩚᩘ࢝࢘ࣥࢺ㸧} ࣭ ㈉⊩ _{(FP): ㄽᩥᩘ㸦ศᩘ࢝࢘ࣥࢺ㸧} ࣭ ㉁ᖹᆒ (AQ): ⿕ᘬ⏝ᩘ㸦ྛㄽᩥࡢ⿕ᘬ⏝ᩘ / Ⓨ⾲ᖺࡢ⿕ᘬ⏝ᩘᖹᆒ㸧ࡢᖹᆒ ࠙ᅜ㝿ᣦᶆࠚ ࣭ ᅜ㝿ඹⴭㄽᩥᩘ (ICI): ௚ᅜࡢᶵ㛵࡟ᡤᒓࡋ࡚࠸ࡿⴭ⪅ࢆ 1 ே௨ୖྵࡴㄽᩥᩘ ࣭ ᅜ㝿ඹⴭㄽᩥ๭ྜ _{(ICR): P ࡟ᑐࡍࡿ ICI ࡢ๭ྜ} ࣭ ᅜ㝿ඹⴭᅜᩘ _{(ICA): ᅜ㝿ඹⴭㄽᩥ࡟⌧ࢀࡿᅜᩘ} ࣔࢹࣝᘧ

ICI ࡢࢲ࣑࣮ࢆ⿕ㄝ᫂ኚᩘ㸦',&, LI,&, DQG',&, LI,&, )㸧࡜ࡋࡓࣟࢪࢫࢸࢵࢡᅇᖐࢆ౑⏝ࡍ ࡿ࡜ࠊ௨ୗࡢࣔࢹࣝ࡜࡞ࡿࠋ

ܫܥܫ(ܲ): ݂൫ݔ௝൯ = ߙ଴+ ߙଵܲ௝+ ߙଶܣܳ௝͐(1)

ICR ࡢࢲ࣑࣮ࢆ⿕ㄝ᫂ኚᩘ㸦',&5 LI,&5 ',&5 LI,&5 ',&5 LI,&5 ',&5 LI,&5 ',&5 LI,&5 ࡜ࡋࡓ㡰ᗎࣟࢪࢫࢸࢵࢡᅇᖐࣔࢹࣝ ࢆ౑⏝ࡍࡿ࡜ࠊ௨ୗ࡜࡞ࡿࠋ

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ܫܥܴ(ܲ): ݂൫ݔ௝൯ = ߛ଴+ ߛଵܲ௝+ ߛଶܣܳ௝͐(2) ࡞࠾ࠊࣔࢹࣝᘧ_{(1)(2)ඹ࡟ࠊP ࢆ FP ࡛௦᭰ࡋࡓࣔࢹࣝࡶ᥎ᐃࡍࡿࠋ}

3㸬ࢹ࣮ࢱᴫせ

ᮏ◊✲࡛ࡣ໬Ꮫศ㔝ࡢㄽᩥࢆᑐ㇟࡜ࡍࡿࠋ࡞ࡐ࡞ࡽྠศ㔝ࡣⱥㄒㄽᩥࢆ㔜どࡍࡿࡇ࡜࡜ྠ᫬࡟ࠊ᪥ᮏ ࡟࠾࠸࡚ᅜ㝿ඹⴭ⋡ྥୖࡢྍ⬟ᛶࢆᣢࡘศ㔝ࡔ࠿ࡽ࡛࠶ࡿࠋࡲࡎ 2002, 2003, 2005, 2007 ࡢ Journal of Citation Records (JCR) ࠿ࡽ໬Ꮫศ㔝ࡢ୰࡛࢖ࣥࣃࢡࢺࣇ࢓ࢡࢱ࣮ࡢ㧗࠸ 18 㞧ㄅࢆ㑅ࡧࠊࢺ࣒ࢯࣥࣟ࢖ ࢱ࣮♫ࡼࡾᥦ౪ࡉࢀ࡚࠸ࡿWeb of Knowledge (WoK)࠿ࡽࡇࡢ 18 㞧ㄅࡢ 1985 ᖺ࠿ࡽ 2005 ᖺࡲ࡛࡟ᥖ㍕ ࡉࢀࡓ_{article ࢆᢳฟࡋࡓࠋศᯒᑐ㇟ㄽᩥᩘࡣ 188,081 ᮏࠊ◊✲⪅ᩘࡣ 49,599 ே࡜࡞ࡗࡓࠋㄽᩥᩘࡀ 100} ᮏ௨ୖ࡜≉࡟ከ࠸32 ேࡢ◊✲⪅ࡢᡤᒓᶵ㛵ࡢ୍⮴ᗘࡣ☜ㄆࡋࡓࡀࠊྡᐤࡏࡣ௒ᚋࡢㄢ㢟࡜ࡋ࡚ṧࡿࠋ ◊✲⪅༢఩ࡢࢹ࣮ࢱᴫせࢆ⾲ _{1 ࡟♧ࡍࠋࡇࡇ࡛ࡣࠊᅜ㝿ඹⴭㄽᩥࡢ᭷↓࡛ࡣ࡞ࡃࠊࢿࢵࢺ࣮࣡ࢡࡢᗈ} ࡉ࡜◊✲ࣃࣇ࢛࣮࣐ࣥࢫ࡜ࡢ㛵㐃ࡀ♧ࡉࢀ࡚࠸ࡿࠋ༢୍ᅜㄽᩥࡢࡳࢆⓎ⾲ࡋࡓ◊✲⪅ࡀ _{69.42%࡜᭱ࡶ} ከ࠸ࡀࠊᅜ㝿ඹⴭㄽᩥ࡜༢୍ᅜㄽᩥࡢ୧᪉ࢆⓎ⾲ࡋࡓ◊✲⪅ࡢ◊✲ࣃࣇ࢛࣮࣐ࣥࢫࡀ᭱ࡶ㧗ࡃࠊḟ࠸࡛ ༢୍ᅜㄽᩥࡢࡳࢆⓎ⾲ࡋࡓ◊✲⪅ࠊ᭱ᚋࡣᅜ㝿ඹⴭㄽᩥࡢࡳࢆⓎ⾲ࡋࡓ◊✲⪅࡛࠶ࡿࠋ᪥ᮏࡢ◊✲⪅࡟ 㛵ࡋ࡚ࡣࠊ༢୍ᅜㄽᩥࡢࡳࢆⓎ⾲ࡋࡓ◊✲⪅ࡀ77.70%ࢆ༨ࡵࡿࠋᅜ㝿ඹⴭㄽᩥ࡜༢୍ᅜㄽᩥࡢ୧᪉ࢆⓎ ⾲ࡋࡓ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫࡀࡸࡣࡾ᭱ࡶ㧗࠸ࠋᙼࡽࡢㄽᩥᩘࡣ_{13.84 ࡛࠶ࡾḟ࠸࡛ࣃࣇ࢛࣮࣐ࣥࢫ} ࡀ㧗࠸༢୍ᅜㄽᩥࡢࡳࢆⓎ⾲ࡋࡓ◊✲⪅ࡢㄽᩥᩘࡢ4 ಸ࡛࠶ࡾࠊ⿕ᘬ⏝ᩘᖹᆒࡣ⣙ 14%㧗࠸ࠋ ⾲ 1 ◊✲⪅ࡢᅜ㝿ඹⴭ࡜ࣃࣇ࢛࣮࣐ࣥࢫ

4. ⤖ᯝ

ㄪᰝタၥ ᣦᶆ㛫ࡢ┦㛵ࢆ⾲ _{2 ࡟♧ࡍࠋF ࡜ FPࠊICI ࡜ ICR ࡞࡝㏆࠸ᣦᶆ㛫࡛ࡣᙜ↛࡞ࡀࡽಀᩘ್ࡀ㧗ࡃṇ࠿} ࡘ᭷ព࡞┦㛵ࡀ♧ࡉࢀ࡚࠸ࡿࠋࣃࣇ࢛࣮࣐ࣥࢫᣦᶆ࡜ᅜ㝿ᣦᶆࡢ㛫࡛ࡣࠊಀᩘ್ࡣ㧗ࡃ࡞࠸ࡀࠊṇ࠿ ࡘ1%Ỉ‽࡛᭷ព࡞┦㛵ࡀぢࡽࢀࡿࠋ ࣔࢹࣝᘧ_{(1)ࢆ᥎ᐃࡋࡓ⤖ᯝࢆ⾲ 3 ࡟♧ࡍࠋP ࡣṇ࠿ࡘ᭷ពࡔࡀ AQ ࡣ 10%Ỉ‽࡛ࡶ᭷ព࡛ࡣ࡞࠸ࠋ} ᅜ㝿ඹⴭ⋡ࡣ≉࡟ㄽᩥᩘࡀᑡ࡞࠸㏵ୖᅜ࡛㧗࠸࡞࡝ᡤᚓỈ‽࡟ࡼࡗ࡚␗࡞ࡿࡓࡵ㸦ຍ⸨ 2011a㸧ࠊࣃࣇ ࢛࣮࣐ࣥࢫ࡜ᅜ㝿ඹⴭ⋡ࡢ㛵ಀᛶࡶᡤᚓỈ‽࡟ࡼࡗ࡚␗࡞ࡿྍ⬟ᛶࡀ⪃࠼ࡽࢀࡓࠋࡑࡇ࡛◊✲⪅ࢆ OECD ࡟ຍ┕ࡋ࡚࠸࡞࠸ᅜࡢᶵ㛵࡟ᡤᒓࡋࡓࡇ࡜ࡀ࠶ࡿ࠿ྰ࠿࡟ศࡅ࡚᥎ᐃࡋࡓ࡜ࡇࢁࠊAQ ࡶṇ࠿ࡘ ᭷ព࡞⤖ᯝࡀ♧ࡉࢀࡓࠋࣔࢹࣝᘧ_{(2)ࢆ᥎ᐃࡋࡓ⤖ᯝ࠿ࡽࡶࣃࣇ࢛࣮࣐ࣥࢫᣦᶆ㸦PࠊAQ㸧ࡣᅜ㝿ඹⴭ} ⋡࡟ṇࡢ┦㛵ࢆᣢࡘࡇ࡜ࡀ♧ࡉࢀࡓ㸦⾲ _{4㸧ࠋ࡞࠾ࠊP ࢆ FP ࡛௦᭰ࡋ࡚ࡶࠊṇ࠿ࡘ᭷ព࡞⤖ᯝࡀ♧ࡉ} ࢀࡓࠋࡼࡗ࡚ࠊAbramo et al. (2011)ࡀ♧ࡋࡓࡼ࠺࡟ࠊࣃࣇ࢛࣮࣐ࣥࢫᣦᶆ࡜ᅜ㝿ᣦᶆࡢ㛫࡟ࡣṇࡢ┦㛵㛵ಀࡀ࠶ࡿ࡜⤖ㄽ௜ࡅࡽࢀࡿࠋ ⾲ 2 ᣦᶆࡢࢫࣆ࢔࣐ࣥ┦㛵 ◊✲⪅ᩘ: 49,599; ᭷ពỈ‽: ***p <0.01 Number of authors Ratio P AQ Number of authors Ratio P AQ All Papers 49,599 100.00% 3.67 0.86 4,170 100.00% 5.21 0.82 Domestic papers only 34,434 69.42% 2.49 0.84 3,240 77.70% 3.46 0.79 Include international paper 15,165 30.58% 6.75 0.91 930 22.30% 11.30 0.91

(International paper only) 5,864 11.82% 1.37 0.82 189 4.53% 1.33 0.77 (Both international and domestic paper) 9,301 18.75% 10.15 0.97 741 17.77% 13.84 0.93

Japan All

Category

P FP AQ ICI ICR ICA

P 1 0.7696*** 0.2246*** 0.4170*** 0.2553*** 0.4745*** FP 1 0.1340*** 0.2439*** 0.0835*** 0.3439*** AQ 1 0.1273*** 0.0840*** 0.1854*** ICI 1 0.9574*** 0.8079*** ICR 1 0.7549*** ICA 1

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⾲ _{3 ᅜ㝿ඹⴭㄽᩥᩘ࡜ࣃࣇ࢛࣮࣐ࣥࢫࡢ᥎ᐃ⤖ᯝ} ⾲ 4 ᅜ㝿ඹⴭㄽᩥ⋡࡜ࣃࣇ࢛࣮࣐ࣥࢫࡢ᥎ᐃ⤖ᯝ ㄪᰝタၥ ᪥ᮏࡢᶵ㛵࡟ᖐᒓࡋࡓࡇ࡜ࡀ࠶ࡿ◊✲⪅ࢆᑐ㇟࡜ࡋ࡚ᣦᶆ㛫ࡢ┦㛵ࢆぢࡿ࡜ࠊ඲యࢆᑐ㇟࡜ࡋࡓ᫬ ࡜ྠᵝ࡟ࣃࣇ࢛࣮࣐ࣥࢫᣦᶆ࡜ᅜ㝿ᣦᶆࡢ㛫࡟ࡣ᭷ពᕪ1%Ỉ‽࡛ṇࡢ┦㛵ࡀぢࡽࢀࡿ㸦⾲ 5㸧ࠋ ୍᪉᪥ᮏࡢ◊✲⪅ࢆᑐ㇟࡜ࡋ࡚ࣔࢹࣝᘧ_{(1)ࢆ᥎ᐃࡋࡓ⤖ᯝࢆぢࡿ࡜ࠊP ࡶࡋࡃࡣ FP ࡣṇ࠿ࡘ 1%Ỉ} ‽࡛᭷ព࡞ಀᩘࢆ♧ࡍࡀࠊ_{AQ ࡢಀᩘࡣ᭷ព࡛ࡣ࡞࠸㸦⾲ 6㸧ࠋࣔࢹࣝᘧ(2)ࢆ᥎ᐃࡋࡓ⤖ᯝ࡛ࡶࠊAQ} ࡣ᭷ព࡛ࡣ࡞࠸㸦⾲ _{4㸧ࠋࡼࡗ࡚᪥ᮏ࡟㛵ࡋ࡚ࡣࠊ◊✲⪅ࣃࣇ࢛࣮࣐ࣥࢫࡢ࠺ࡕࠊㄽᩥᩘ࡟㛵ࡋ࡚ࡢࡳ} ᅜ㝿ඹⴭ࡜ࡢṇࡢ┦㛵ࡀ♧ࡉࢀࡓ࡜ゝ࠼ࡿࠋ ⾲ 5 ᪥ᮏࡢᶵ㛵࡟ᖐᒓࡋࡓࡇ࡜ࡀ࠶ࡿ◊✲⪅ࡢᣦᶆ㛫ࡢࢫࣆ࢔࣐ࣥ┦㛵 ◊✲⪅ᩘ: 4,170; ᭷ពỈ‽: ***p <0.01 ⾲ 6 ᅜ㝿ඹⴭㄽᩥᩘ࡜ࣃࣇ࢛࣮࣐ࣥࢫࡢ᥎ᐃ⤖ᯝ ㄪᰝタၥ ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ௨እࡢせᅉࡀᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡢከࡉࢆㄝ᫂ࡍࡿྍ⬟ᛶࢆ⪃࠼ࡿ ࡓࡵ࡟ࠊ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫせᅉࢆ᤼㝖ࡍ࡭ࡃࠊᅜ㝿ඹⴭㄽᩥ࡜༢୍ᅜㄽᩥࡢ୧᪉ࢆⓎ⾲ࡋࡓ ◊✲⪅_{9,301 ேࢆᑐ㇟࡜ࡍࡿࠋᙼࡽࡢᅜ㝿ඹⴭㄽᩥ࡜༢୍ᅜㄽᩥࢆẚ㍑ࡍࡿ࡜ࠊt ࢸࢫࢺࡢ⤖ᯝࠊ1%} Ỉ‽ _{(t (9300) = -36.239, p <.01)࡛༢୍ᅜㄽᩥࡣᅜ㝿ඹⴭㄽᩥࡼࡾࡶ AQ ࡀప࠸ࡇ࡜ࡀ♧ࡉࢀࡓࠋ༢୍} ᅜㄽᩥ࡜ᅜ㝿ඹⴭㄽᩥ཮᪉ࢆⓎ⾲ࡋࡓⴭ⪅ࡢ_{2 ✀㢮ࡢㄽᩥࢆẚ࡭ࡓሙྜ࡟ᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘ} ࡀ㧗࠸ࡇ࡜࠿ࡽࠊᅜ㝿ඹⴭㄽᩥࡣ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ௨እࡢせᅉ࡟ࡼࡗ࡚⿕ᘬ⏝ᩘࡀ㧗࠸ྍ⬟ ᛶࡀ♧၀ࡉࢀࡿࠋ

Coef. Std. Err. z P䡎>z Coef. Std. Err. z P䡎>z Coef. Std. Err. z P䡎>z

P 0.146 0.003 54.34 0 0.143 0.003 49.26 0 0.160 0.007 22.32 0

AQ 0.012 0.008 1.44 0.149 0.014 0.008 1.65 0.099 0.080 0.031 2.62 0.009

Cons -1.343 0.015 -90.29 0 -1.427 0.016 -86.84 0 -1.019 0.037 -27.4 0

Total

(Number of obs: 49,598, Pseudo R2: 0.082) OECD only(Number of obs: 41,265, Pseudo R2: 0.0823) Non-OECD included (Number of obs: 8,333, Pseudo R2: 0.0827) Categories

Variables

Coef. Std. Err. z Pr>z Coef. Std. Err. z Pr>z P 0.037 0.001 31.39 0 0.046 0.003 13.57 0 AQ 0.015 0.008 1.96 0.05 0.060 0.044 1.37 0.17 /cut1 1.010 0.013 1.621 0.058 /cut2 1.402 0.014 2.417 0.067 /cut3 1.969 0.016 3.158 0.080 /cut4 2.160 0.016 3.423 0.087 Total Number of obs: 49,598, Pseudo R2: 0.0119 Japan Number of obs: 4,170, Pseudo R2: 0.0333 Variables

P FP AQ ICI ICR ICA

P 1 0.8775*** 0.2820*** 0.4014*** 0.3203*** 0.5113*** FP 1 0.2229*** 0.3310*** 0.2484*** 0.4632*** AQ 1 0.1504*** 0.1245*** 0.2653*** ICI 1 0.9816*** 0.7266*** ICR 1 0.6961*** ICA 1

Coef. Std. Err. z P䡎>z Coef. Std. Err. z P䡎>z

P 0.109 0.006 18.18 0 FP 0.317 0.019 16.76 0 AQ 0.038 0.047 0.79 0.427 0.056 0.045 1.24 0.214 Cons -1.907 0.064 -29.91 0 -1.820 0.062 -29.56 0 Japan (Number of obs: 4,170, Pseudo R2: 0.093) Categories Variables Japan (Number of obs: 4,170, Pseudo R2: 0.115)

(5)

5. ⤖ㄽ࡜⪃ᐹ

ᮏ◊✲࡛ࡣࠊᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡢከࡉࡢ⫼ᬒࢆ⪃࠼ࡿ࡭ࡃࠊ໬Ꮫㄽᩥࡢࢹ࣮ࢱࢆ⏝࠸࡚ィ㔞 ศᯒࢆ⾜ࡗࡓࠋࡇࡢ⤖ᯝࠊAbramo et al. (2011)࡜ྠᵝ࡟ࠊࣃࣇ࢛࣮࣐ࣥࢫࡀ㧗࠸◊✲⪅ࡣᅜ㝿ඹⴭㄽᩥ ࢆⓎ⾲ࡋࡸࡍ࠸ഴྥࡀ♧ࡉࢀࡓࠋྠ᫬࡟◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ௨እࡢせᅉࡀᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ ᩘࡢከࡉࢆㄝ᫂ࡍࡿྍ⬟ᛶࡶ♧၀ࡉࢀࡓࠋ᪥ᮏ࡟㛵ࡋ࡚ࡣࠊ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫࡢ࠺ࡕㄽᩥᩘ࡜ ࡢ㛵ಀࡀ♧ࡉࢀࡓࠋ௒ᚋࡣࠊศ㔝࠾ࡼࡧᑐ㇟Ꮫ⾡ㄅᩘࢆቑࡸࡍࡇ࡜ࡸࠊ◊✲⪅ࡢྡᐤࡏࢆṇ☜࡟⾜࠺ ࡞࡝ࡢᨵၿࡀ⪃࠼ࡽࢀࡿࠋࡲࡓ௒ᅇ♧ࡋࡓࡢࡣ┦㛵㛵ಀ࡛࠶ࡾࠊ◊✲⪅ࡢࣃࣇ࢛࣮࣐ࣥࢫ࡜ᅜ㝿ඹⴭ ㄽᩥࡢⓎ⾲ࡢ㛫࡟ࡣ཮᪉ྥࡢᅉᯝ㛵ಀࡀ࠶ࡿ࡜᥎ᐹࡉࢀࡿࡇ࡜࠿ࡽࠊ௒ᚋࡢࢸ࣮࣐࡜ࡋ࡚ᅉᯝࡢ᪉ྥ ᛶࡢ᥈✲ࡀᣲࡆࡽࢀࡿࠋᮏศᯒ⤖ᯝ࠿ࡽࡣࠊᅜ㝿ඹⴭㄽᩥ࡜༢୍ᅜㄽᩥࡢ୧᪉ࢆⓎ⾲ࡋࡓ◊✲⪅ࡢࣃ ࣇ࢛࣮࣐ࣥࢫࡢ㧗ࡉࡀ♧ࡉࢀࡓࡀࠊ◊✲⪅ࡢ࢟ࣕࣜ࢔ࡢ㛗ࡉࡀᙳ㡪ࡍࡿྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࠋࡼࡗ࡚ ௒ᚋࡣࠊ◊✲⪅ࡢ␎Ṕ࡜ేࡏ࡚ศᯒࡍࡿᚲせࡀ࠶ࡿࠋ ᮏศᯒ࡟ࡼࡾ♧ࡉࢀࡓ⤖ᯝࡀᣢࡘព࿡ࢆᨵࡵ࡚⪃ᐹࡋࡓ࠸ࠋᚑ᮶ࠊᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡢከࡉ ࡀᣦ᦬ࡉࢀ࡚ࡁࡓࡀࠊࡑࡢ⫼ᬒࡣᐃ㔞ⓗ࡟᥈✲ࡉࢀ࡚ࡇ࡞࠿ࡗࡓࠋࠕࣃࣇ࢛࣮࣐ࣥࢫࡢ㧗࠸◊✲⪅ࡀ ཧຍࡍࡿ࠿ࡽᅜ㝿ඹⴭㄽᩥࡢ⿕ᘬ⏝ᩘࡀከ࠸ࠖ࡜࠸࠺⤖ㄽࡣࠊࢥࣟࣥࣈࢫࡢ༸ࡢࡼ࠺࡟ࠊ⪺ࡅࡤᙜࡓ ࡾ๓ࡢࡇ࡜࡛㦫ࡃ࡟್ࡋ࡞࠸ࠋࡋ࠿ࡋࡇࢀࡲ࡛₍↛࡜⌧㇟ࡢࡳࢆ㆟ㄽࡋ࡚ࡁࡓࡇ࡜࡟ẚ࡭ࠊᐇド⤖ᯝ ࢆకࡗ࡚⫼ᬒࢆ♧ࡍࡇ࡜ࡣ᱁ẁࡢ๓㐍࡜ᤊ࠼ࡽࢀࡿࠋ◊✲ຊࡢྥୖࢆ┠ⓗ࡟ᅜ㝿ඹⴭࢆ᥎ࡋ㐍ࡵࡿሙ ྜࡣࠊ⿕ᘬ⏝ᩘࡢከࡉ࡜࠸࠺⌧㇟ࡢࡳ࡛࡞ࡃࠊᅉᯝ㛵ಀࡶ㋃ࡲ࠼࡚ࡑࡢ⫼ᬒࢆᢕᥱࡍࡿࡇ࡜࡛ึࡵ࡚ 㐺ษ࡞᪉⟇ࢆ᳨ウ࡛ࡁࡿࡢ࡛ࡣ࡞࠸ࡔࢁ࠺࠿ࠋ ᪥ᮏࡢᅜ㝿ඹⴭ⋡ࡀప࠸⌮⏤ࡣᵝࠎ࡟⪃࠼ࡽࢀࡿࠋ౛࠼ࡤබ⏝ㄒࡀⱥㄒ࡛࡞࠸ࡇ࡜ࡸ୍ᐃつᶍࡢ◊ ✲⪅ᩘࢆ᧦ࡍࡿࡇ࡜ࠊࡑࡋ࡚_{EU ㅖᅜࡢࡼ࠺࡟ᨻ⟇ⓗ࡟ᅜ㝿ඹྠ◊✲ࢆ᥎ࡋ㐍ࡵ࡚࠸࡞࠸࡞࡝ࠋࡋ࠿} ࡋ௒ᅇࡢศᯒ⤖ᯝ࠿ࡽࠊࠕᩒ࠼࡚ࠖせᅉࢆ㏣ຍࡍࡿ࡞ࡽࠊ୺せඛ㐍ᅜ࡜ẚ㍑ࡋࡓ㝿࡟ࣃࣇ࢛࣮࣐ࣥࢫࡢ 㧗࠸◊✲⪅ࡢ๭ྜࡀప࠸࠿ࡽࡔࠊ࡜ࡣ⪃࠼ࡽࢀ࡞࠸ࡔࢁ࠺࠿ 1_{ࠋᮏ✏ࡀࠊእᅜே◊✲⪅ࡢ㞟✚ࡶྵࡵ} ࡚ࠊ᪥ᮏࡢ◊✲άືࡢᅜ㝿໬ࡀ᪥ᮏࡢ◊✲ຊྥୖ࡟⧅ࡀࡿࡓࡵࡢᇶ♏㈨ᩱ࡟࡞ࢀࡤᖾ࠸࡛࠶ࡿࠋ

6㸬ཧ⪃ᩥ⊩

Abramo, G., D’angelo, C. A., & Solazzi, M. (2011). The relationship between scientists’ research performance and the degree of internationalization of their research. Scientometorics, 86(3), 629-643.

Adams, J. D., Black, G. C., Clemmons, J. R., & Stephan, P.E. (2005). Scientific teams and institutional collaboration: Evidence from U.S. universities, 1981-1999. Research Policy, 34(3), 259–285.

Bozeman, B., & Corley, E. A. (2004). Scientists' collaboration strategies: Implications for scientific and technical human capital. Research Policy, 33(4), 599-616.

Defazio, D., Lockett, A., & Wright, M. (2009). Funding incentives, collaborative dynamics and scientific productivity: Evidence from the EU framework program. Research Policy, 38(2), 293–305.

Glänzel, W. (2001). National characteristics in international scientific co-authorship relations. Scientometrics, 51(1), 69–115.

Schmoch, U., & Schubert, T. (2008). Are international co-publication an indicator for quality of scientific research? . Scientometrics, 74(3), 361–377.

Ubfal, D., & Maffioli, A. (2011). The impact of funding on research collaboration: Evidence from developing country. Research Policy, 40(9), 1269-1279.

ຍ⸨┿⣖. (2011a) . Ꮫ⾡ㄽᩥࡢศᯒ࠿ࡽぢࡿ㏵ୖᅜࡢ◊✲άື.ࠗᅜ㝿㛤Ⓨ◊✲࠘. Vol. 20(1). pp 15-30 ຍ⸨┿⣖_{. (2011b). ࠗㄽᩥࡢ⿕ᘬ⏝ᩘ࠿ࡽぢࡿ༟㉺ࡋࡓ◊✲⪅ࡢ࢟ࣕࣜ࢔ࣃࢫ࡟㛵ࡍࡿᅜ㝿ẚ㍑࠘. ᩥ}

㒊⛉Ꮫ┬ ⛉Ꮫᢏ⾡ᨻ⟇◊✲ᡤ _{Discussion Paper No. 78}

㜰ᙬ㤶࣭᱓ཎ㍤㝯_{.(2013).ࠗ⛉Ꮫ◊✲ࡢ࣋ࣥࢳ࣐࣮࢟ࣥࢢ 2012㹼ㄽᩥศᯒ࡛ࡳࡿୡ⏺ࡢ◊✲άືࡢኚ໬} ࡜᪥ᮏࡢ≧ἣ㹼࠘_{.ᩥ㒊⛉Ꮫ┬⛉Ꮫᢏ⾡ᨻ⟇◊✲ᡤ ㄪᰝ㈨ᩱ 218}

ᮏ ✏ ࡣ Discussion Paper No. 95 Empirical analysis on factors associated with international scientific collaboration(http://data.nistep.go.jp/dspace/bitstream/11035/2410/2/NISTEP-DP95-FullJ.pdf)ࢆᇶ࡟୍㒊ຍ➹ ࡋࡓࡶࡢ࡛࠶ࡿࠋヲ⣽ࡣྠ࣮࣌ࣃ࣮ࢆཧ↷ࡉࢀࡓ࠸ࠋ

1_ຍ⸨㸦_{2011b㸧ᅗ⾲ 3 ཧ↷ࠋ⡿ᅜࡢᅜ㝿ඹⴭ⋡ࡢపࡉ࡞࡝౛እࡣ┤ࡄᛮ࠸ࡘࡃࠋࡶࡗ࡜ࡶ⡿ᅜࡢሙྜࡣ◊}

✲⪅ࡢᅜ㝿ⓗ࡞㞟✚࡟ࡼࡾ◊✲᏶⤖ᛶࡀ㧗࠸࡜ࡶ⪃࠼ࡽࢀࡿࠋ