Table 4. Marginal Effects and Elasticity, the Association between POS Ad Bans and Experimental Smoking, Both Sexes, Sensitivity Analysis included.

	Prior	Subsequent	Random Assignment
Marginal Effect	−0.087**	−0.094**	−0.090**
(S.E.)	(0.032)	(0.031)	(0.031)
Elasticity	−0.314**	−0.342**	−0.326**
(S.E.)	(0.115)	(0.112)	(0.111)

+ < 0.1, *< 0.05, **< 0.01, ***< 0.001 in two-tailed test. When conducting analyses reported in Table 3, we used prior information to fill in missing policy scores in years 2009 and 2011 (Column1).