Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/336818 
Year of Publication: 
2026
Series/Report no.: 
I4R Discussion Paper Series No. 280
Publisher: 
Institute for Replication (I4R), s.l.
Abstract: 
We replicate Horváth (2025), experimentally studying link formation and effort in a linear-quadratic game with positive externalities. Across five treatments, subjects exert 38-97 percent more effort than the Nash benchmark yet create too few links, depressing payoffs. In groups of five, the complete network appears in roughly 25 percent of final rounds (66-76 percent if deviations of ±2 links are allowed); in groups of nine it is almost never reached. Larger groups and lower link costs fail to improve connectivity. Following the original procedures and analysis step-for-step, our replication reproduces the sign, magnitude, and statistical significance of every reported effect. Robustness checks-learning, benefit salience, group benchmarking, alternative clustering, and multiple link-formation specifications- confirm the core pattern: persistent over-provision of effort coupled with under-provision of links, generating substantial efficiency losses.
Subjects: 
network formation
efficiency
linear-quadratic payoffs
experiment
JEL: 
D85
D62
C92
Document Type: 
Working Paper

Files in This Item:
File
Size





Items in EconStor are protected by copyright, with all rights reserved, unless otherwise indicated.