Do sincere apologies need to be costly? Test of a costly signaling model of apology☆
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☆ This research was supported by the Japan Society for the Promotion of Science (grant no. 18730398).
PII: S1090-5138(08)00092-5
doi:10.1016/j.evolhumbehav.2008.09.004
© 2009 Elsevier Inc. All rights reserved.
