Table 1.

Descriptive statistics and correlations (Source: Authors).

		mean	sd	1	2	3	4	5	6	7	8	9	10	11
1	Correct use of respiratory protection	0.705	0.456	1.000
2	Age of customer	0.487	0.184	0.121	1.000
3	Sex of customer (1 = woman)	0.584	0.493	0.050	−0.006	1.000
4	Customer being member of a close group	0.239	0.427	−0.028	−0.145	0.004	1.000
5	Observation time (before 10:00)	0.185	0.389	−0.014	−0.015	0.062	−0.093	1.000
6	Observation time (10:00–12:00)	0.335	0.472	0.027	0.020	−0.037	0.029	−0.337	1.000
7	Observation time (12:00–15:00)	0.258	0.437	−0.018	0.060	0.017	−0.045	−0.283	−0.412	1.000
8	Outdoors entrance	0.275	0.447	0.011	0.051	0.051	0.042	−0.032	0.029	−0.017	1.000
9	Respiratory protection - employees	0.574	0.361	0.076	0.039	0.038	−0.057	0.044	−0.009	−0.092	0.161	1.000
10	Respiratory protection - customers	0.893	0.122	0.176	0.051	0.013	−0.085	0.100	−0.134	0.080	0.034	0.122	1.000
11	Social pressure (customers per m2)	0.061	0.069	−0.038	0.043	0.047	−0.107	−0.008	−0.006	0.045	0.081	−0.036	0.176	1.000

Note: n = 1754 (customer level).