. 2021 May 11;187:415–430. doi: 10.1016/j.jebo.2021.04.006

Table 4.

Treatment effects: mask self support.

	All	Trump=3	Trump $>$ 3	Trump $<$ 3	Trump=5	Trump=1	Male	Female
Treated	0.0360**	0.0361	0.0356	0.0127	0.0487	0.0280	0.0399	0.0337
	(0.0176)	(0.0609)	(0.0299)	(0.0204)	(0.0495)	(0.0200)	(0.0246)	(0.0250)
T2	$-$ 0.00694	$-$ 0.0468	0.00990	0.000766	0.0368	$-$ 0.0181	0.00767	$-$ 0.0256
	(0.0169)	(0.0586)	(0.0286)	(0.0195)	(0.0433)	(0.0187)	(0.0231)	(0.0250)
T3	0.000479	$-$ 0.0656	$-$ 0.00725	0.0416**	0.0409	0.0113	0.0247	$-$ 0.0256
	(0.0164)	(0.0617)	(0.0295)	(0.0165)	(0.0472)	(0.0156)	(0.0220)	(0.0249)
Constant	0.697***	0.870***	0.536***	0.913***	0.304**	0.942***	0.678***	0.723***
	(0.0336)	(0.128)	(0.0745)	(0.0407)	(0.129)	(0.0451)	(0.0444)	(0.0499)

Treated+T2	0.0291	$-$ 0.0107	0.0456	0.0135	0.0855*	0.00991	0.0475*	0.00814
	(0.0178)	(0.0652)	(0.0295)	(0.0205)	(0.0452)	(0.0214)	(0.0253)	(0.0248)
Treated+T3	0.0365**	$-$ 0.0295	0.0284	0.0544***	0.0895*	0.0393**	0.0646***	0.00814
	(0.0173)	(0.0653)	(0.0307)	(0.0176)	(0.0502)	(0.0184)	(0.0242)	(0.0247)

$R^{2}$	0.171	0.122	0.224	0.140	0.332	0.111	0.163	0.191
$N$	2813	365	1156	1292	407	949	1566	1247

Note: The dependent variable is binary and equal to unity for subjects who say they are “very likely” or “likely” to wear a mask when attending a social event in the near future during which social distancing is not possible. Treated indicates a subject was exposed to any one of the three video treatments. T2 indicates a subject was exposed to the Voluntary treatment. T3 indicates a subject was exposed to the Refusal treatment. Thus, T2 and T3 are the additional effects of these treatments relative to the CDC Guidelines treatment (which is captured by the Treated coefficient). Treatment effects are conditioned on observed subject heterogeneity including race, education, income, age, gender, experience with COVID-19, health conditions, and stated level of concern regarding COVID-19. Trump varies from 1 (strongly unsupportive of President Trump) to 5 (strongly supportive of President Trump). Robust standard errors in parentheses. *** p $\leq$ 0.01, ** p $\leq$ 0.05, * p $\leq$ 0.10.