Fig. 5.

Histograms of transfers conditional on offer 6 (A) and offer 5 (B). Each panel also reports the number of data points: n1 refers to 1S, n2 to 2S. Following offer 6, the data in 1S are too few to test for equality of the distributions in laboratory first round and MTurk; in laboratory all rounds a Kolmogorov–Smirnov test corrected for discreteness strongly rejects the hypothesis of equal distribution in 1S and 2S (P = 0.0032). Following offer 5, the test cannot reject equality of the distributions in laboratory first round and laboratory all rounds (P = 0.091 and P = 0.253), but rejects it in MTurk (P = 0.019).