Table 1.

Prosocial games: stranger outside the village who you will never meet

	A	B	C
You	3500	4200	4000
Stranger	500	2000	3000
You	4000	5000	5300
Stranger	4000	1000	2000
You	5500	5000	5000
Stranger	3000	4500	1000
You	5400	4800	5000
Stranger	3000	1000	5000
You	4800	5400	4800
Stranger	4800	2400	800
You	5000	4500	5200
Stranger	500	4000	2200