Yang Xu
arXiv 13 May 2025 · Econometrics
arXiv:2505.08405 · PDF · Extracted main text
This paper studies a linear production model in team networks with missing links. In the model, heterogeneous workers, represented as nodes, produce jointly and repeatedly within teams, represented as links. Links are omitted when their associated outcome variables fall below a threshold, resulting in partial observability of the network. To address this, I propose a Generalized Method of Moments estimator under normally distributed errors and develop a distribution-free test for detecting link truncation. Applied to academic publication data, the estimator reveals and corrects a substantial downward bias in the estimated scaling factor that aggregates individual fixed effects into team-specific fixed effects. This finding suggests that the collaboration premium may be systematically underestimated when missing links are not properly accounted for.
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The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.
| Reference | Intensity | Mentions | Sections | Main text | |
|---|---|---|---|---|---|
| 1 | Bonhomme, S. (2021, February) (2021) Teams: Heterogeneity, Sorting, and Complementarity | 1.000 | 7 | 3 | 100% |
| 2 | Anderson, K. A. and S. Richards-Shubik (2022, November) (2022) Collaborative Production in Science: An Empirical Analysis of Coauthorships in Economics | 0.737 | 3 | 2 | 100% |
| 3 | Ductor, L., M. Fafchamps, S. Goyal, and M. J. van der Leij (2014, De… (2014) Social Networks and Research Output | 0.644 | 4 | 1 | 100% |
| 4 | Ahmadpoor, M. and B. F. Jones (2019) Decoding team and individual impact in science and invention | 0.644 | 2 | 2 | 100% |
| 5 | Amemiya, T (1973) Regression Analysis when the Dependent Variable Is Truncated Normal | 0.644 | 2 | 2 | 100% |
| 6 | Jones, B. F. (2021, May) (2021) The Rise of Research Teams: Benefits and Costs in Economics | 0.644 | 2 | 2 | 100% |
| 7 | Tobin, J (1958) Estimation of Relationships for Limited Dependent Variables | 0.644 | 2 | 2 | 100% |
| 8 | Hansen, L. P (1982) Large Sample Properties of Generalized Method of Moments Estimators | 0.511 | 2 | 2 | 50% |
| 9 | Chandrasekhar, A. G. and R. Lewis (2011) Econometrics of Sampled Networks | 0.511 | 2 | 1 | 100% |
| 10 | Kodrzycki, Y. K. and P. D. Yu (2006, June) (2006) New Approaches to Ranking Economics Journals | 0.511 | 2 | 1 | 100% |
Showing the top 10 of 39 scored citations.