experimentally test three competing theories of GF and HHF: probability bias, randomized choice, and bounded rationality. We find … the classical method suggests about 51% (48%). We show that probability bias, randomized choice, and bounded rationality …

identity (in-group bias). While both phenomena involve some degree of discrimination towards others, a systematic study of … games with either an in-group or an out-group member. Wend strong evidence of in-group bias when agents are matched … matching. -- In-Group Bias ; Homophily ; Endogenous Matching ; Experiments ; Game Theory …