RT Journal Article SR 00 ID 10.1007/s40750-015-0026-4 A1 Centorrino, Samuele A1 Djemaï, Elodie A1 Hopfensitz, Astrid A1 Milinski, Manfred A1 Seabright, Paul T1 A model of smiling as a costly signal of cooperation opportunities JF Adaptive Human Behavior and Physiology YR 2015 FD 2015-09 VO vol. 1 SP 325 OP 340 K1 Smiling K1 Costly signaling K1 Experiment K1 Trust game PB Springer International Publishing SN 2198-7335 LK https://publications.ut-capitole.fr/id/eprint/16892/ UL http://tse-fr.eu/pub/29278