合著網絡對學術生產力所產生的外溢效果

The Spillover Effect on Productivity in Co-authorship Networks

戴維慶(Wei-Qing Dai)

指導教授 ： 謝志昇

國立臺灣大學/社會科學院/經濟學研究所/碩士(2022年)

https://doi.org/10.6342/NTU202201930

摘要

此篇論文旨在探討學術上共同作者的社會網絡與學術生產力之間的關係。我們採用兩種模型來估計學術合作對於學術生產力的外溢效果。空間自迴歸模型讓我們對此效果有初步的了解，然而卻可能存在網絡內生性的問題。因此，我們進而使用結構模型，同時考慮網絡互動與網絡生成過程，以修正在係數估計上的內生性誤差。結構模型同時也提供了反事實分析的功用，其結果顯示外溢效果對於共同作者網絡中合作關係的形成以及提升學術產量方面皆有相當大的影響。

關鍵字

社會網絡 ； 學術生產力 ； 結構模型 ； 外溢效果

並列摘要

This paper aims to investigate the relationship between co-authorship network and academic productivity. We use two models to estimate the spillover effect on productivity from academic collaboration. A spatial autoregressive model gives us a depiction of it but suffers from the potential network endogeneity problem. A structural model is then used to model both network interaction and network formation processes, correcting the endogeneity bias on the estimated coefficients, and making possible a counterfactual analysis. The counterfactual simulation result suggests that the spillover effect has a substantial impact on both forming network links and raising output level.

並列關鍵字

Social Network ； Academic Productivity ； Structural Model ； Spillover Effect

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