Table 1. Marginal effects evaluated at the mean using probit results of estimation of equation (2).

	Probability of choosing safe
	All players		Players with choice rate ≥60%
	Default choice counted as risky	Default choice counted as missing	Default choice counted as risky	Default choice counted as missing
	(1)	(2)	(3)	(4)
costlow	0.104 (0.0975)	0.205** (0.0972)	0.199* (0.105)	0.204** (0.103)
prevknown	−0.135 (0.468)	−0.101 (0.518)	−0.212 (0.538)	−0.179 (0.540)
firstaction	0.381*** (0.0995)	0.183** (0.0836)	0.199** (0.0896)	0.164* (0.0892)
infectriskratio	0.227 (0.229)	0.507** (0.200)	0.471** (0.201)	0.534*** (0.203)
round	−0.0170** (0.00689)	−0.0198** (0.00781)	−0.0192** (0.00785)	−0.0219*** (0.00783)
prevknown×round	0.0518*** (0.0172)	0.0584*** (0.0196)	0.0555*** (0.0197)	0.0630*** (0.0199)
Observations	2296	1560	1641	1521