Alapini, Gefry B.; Djima, Jesugnon E.; Zhazhin, Kirill - 2026
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...