approaching significancep = 0.055
26), a slight increase of contract imbalance approaching significance ( CI A , B t - 1 > CI B , A t - 2 , p = 0.055, d = 0.39, P o = 0.25) and reciprocal sequences for joint utility ( JU A , B t - 1 ≈ JU B , A t - 2 , p = 0.129, d = 0.32 P o = 0.20) and own utility ( OwU A , B t - 1 ≈ OwU B , A t - 2 , p = 0.524, d = 0.18, P o = 0.12).