Table 2.

Frequencies of consumers’ and producers’ actions

	Consumer’s choice
	Control condition	Tokens condition
Producer’s choice		Trade impossible	Trade possible
			Do nothing	Transfer or sell
No help	0.544	0.861	0.059	0.381
Give help	0.456	0.139	0.007	0.048
Sell help	—	—	0.077	0.427
Totals	1	1	0.143	0.857

Each cell reports the average frequency of consumers’ and producers’ choices. The unit of observation is the frequency in a group of N players, in a cycle. Averages are computed attributing equal weight to each condition n = 2,4,8,32.