Revisiting the Intra-Team Communication Method to Elicit Level-k Reasoning in Beauty Contests and 11-20 Games

Zitian Wang, Istiak Ahmed, Patarasate Unjitwattana, Emily Yunxi Xie, Meng-Jhang Fong and Po-Hsuan Lin

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Abstract: How level-0 players behave and how they are perceived by higher-level players are central questions in the literature on level-k models of boundedly rational strategic reasoning. To study these twin questions, we apply the intra-team communication method developed by Burchardi and Penczynski (2014) to identify level-0 actions and beliefs in the canonical beauty contest game and in a variant of the 11-20 game of Goeree et al. (2018), in which behavior appears inconsistent with the standard level-k model. In the beauty contest game, we replicate Burchardi and Penczynski (2014)'s finding that elicited level-0 beliefs align with observed level-0 actions. In the variant of the 11-20 game, however, elicited level-0 beliefs and observed level-0 actions diverge, and both depart from the standard level-0 assumption, suggesting a complementary explanation for the behavioral pattern documented by Goeree et al. (2018).

Date: 2026-08
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