“…For the formal trials, tax rates were sampled without replacement from a pre-defined set: [(7,7), (8,8), (9,9), (9,6), (9,7), (8,5), (6,9), (7,9), (5,8)], from which participants had equal probability of being either stronger, weaker, or evenly matched. Three practice trials were played prior to the formal trials, with the tax rates of [ (7,7), (9,6), (5,8)]. Following the experiments, participants completed a post-experimental questionnaire.…”