Researchers are exploring whether these ubiquitous fluorinated molecules might worsen infections or hamper vaccine effectiveness.
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Edited by Joseph Henrich, Harvard University, and accepted by Editorial Board Member Susan A. Gelman September 25, 2018 (received for review June 1, 2018)
Article Figures & SI
Figures
- Fig. 1.
Payoffs in the Stag Hunt.
- Fig. 2.
Results of the Stag Hunt. An expansion of the black bars across periods suggests the emergence of the cooperative convention. An expansion of the white bars suggests the emergence of the noncooperative convention.
Tables
Dependent variable: probability of playing Stag (relative to a player in an LL pair) If the outcome in the preceding period was Initial period Stag/Stag Stag/Hare Hare/Stag Hare/Hare Independent variable 1 2 3 4 5 6 7 8 9 10 HH −0.135 (0.0735) −0.135 (0.0890) 0.0194 (0.0466) 0.0303 (0.0385) −0.364** (0.110) −0.402** (0.115) −0.192 (0.107) −0.140 (0.123) −0.233 (0.190) −0.249 (0.189) H in LH −0.101 (0.102) −0.0947 (0.108) −0.000367 (0.0568) 0.00553 (0.0620) −0.126 (0.129) −0.173 (0.131) −0.201* (0.0958) −0.128 (0.129) −0.0935 (0.217) −0.110 (0.209) L in LH 0.0530 (0.0882) 0.0984 (0.0973) 0.0247 (0.0365) 0.0116 (0.0387) 0.0431 (0.119) 0.0673 (0.117) −0.191 (0.117) −0.130 (0.130) 0.0320 (0.169) 0.00130 (0.160) Type 0.356*** (0.0547) 0.0969* (0.0443) −0.0176 (0.0647) 0.177 (0.120) −0.107 (0.106) Land 0.00592 (0.00405) −0.00154 (0.00241) 0.00558 (0.00486) −0.00187 (0.00653) −0.00753 (0.00776) High school 0.00595 (0.0799) 0.00246 (0.0407) −0.0748 (0.0810) −0.0434 (0.103) −0.181 (0.122) Nonmud house 0.0558 (0.0636) 0.0224 (0.0482) 0.0936 (0.0863) 0.0391 (0.100) 0.0492 (0.104) N 242 242 452 452 181 181 181 181 154 154 Pseudo R2 0.017 0.101 0.002 0.030 0.082 0.091 0.019 0.036 0.042 0.078 *P < 0.05, **P < 0.01, ***P < 0.001. Marginal effects are reported, with clustered standard errors (SEs) in parentheses. Columns 1 and 2 show the initial period of fixed pairings. The remaining columns show periods 2–5 and 7–10 conditional on the outcome in the preceding period of the fixed pairing. The preceding period outcomes Stag/Stag, Stag/Hare, Hare/Stag, and Hare/Hare mean that the player chose the first option and the partner chose the second. Type = 1 if the player played Stag in period 1 and the period is greater than 1; otherwise, type = 0. Players were organized into fixed pairs in groups of four, such that individuals A, B, C, and D were assigned to pairs A;B and C;D for periods 1–5 and to pairs A;C and B;D for periods 6–10. SEs are clustered by these four sets of players.
Data supplements
Supporting Information
Cultural impediments to learning to cooperate: An experimental study of high- and low-caste men in rural India
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- Economic Sciences
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