Inequity aversion in old age: An outcome bias in older adults’ socio-economic decisions

Little is known about how healthy aging affects decision making. Here we studied the social economic decisions of younger (19–39 years) and older (75–100 adults depend on intentions agents outcomes their actions. Participants played role a responder (R) in an Ultimatum Game. A proposer (P) offered them specific division lottery tickets, which they could either accept or reject. Crucially, each trial were told that P was constrained to choose between two divisions resulting sometimes intended unfair offer others unintended offer. In critical offer, kept 8 tickets 2 R, but he have chosen fair 5P/5R split. alternative involved same 8P/2R The rejected by most (67 %), only minority (28 %). general, less affected than contextual constraints relevant inferring P’s intentions. These findings suggest brings outcome bias