Extended Data Fig. 1: The second stage of the trust and ultimatum games follows a similar pattern as the first stage.
From: Social networking agency and prosociality are inextricably linked in economic games
Despite the absence of distinction between constrained and free players in the second stage, an increase in the fraction of free players typically results in a rise in (a) the returned amount in the trust game and (b) the accepted amount in the ultimatum game. Each group consisted of three independent sessions with 49 participants per session (N = 147 per group). Each game comprised a control group with a population of constrained players and three treatments with mixed populations, including low, medium, and high fractions of free players, as well as a treatment with a population entirely composed of free players. Upper panels show individual data points, with boxes indicating the 25th and 75th percentiles and the space between the boxes marking the median. Lower panels display effect sizes and 98.75% confidence intervals. Statistical significance was evaluated using two-sided t-tests with the Bonferroni correction.
