Table 1.

Descriptive statistics

Variable	Mean	Std. dev.	Min	Max
Colonoscopy	776.49	934.62	100	5000
Cholecystectomy	3235.55	3734.27	100	25,000
Coronary stent	2742.30	3316.18	150	20,000
Pacemaker	3178.52	3868.15	100	20,000
General human capital	2.96	1.51	1	6
Job-specific human capital	14.25	10.58	1	42
Domain-specific human capitala	2.92	1.16	1	6
Own training in economics	3.14	1.67	1	6
Thinking economically when using material	4.56	1.23	1	6
Job-Stressa	4.24	1.16	1	6
Cost-related stress	3.07	1.52	1	6
Gender	0.54	0.49	0	1
Physician	0.54	0.51	0	1
Supervisory position	0.28	0.45	0	1

Note N = 86; ^aCronbach’s α. the factors domain-specific human capital and job-stress consist of five items each. Therefore, we assessed the internal consistency. Domain-specific human capital α = 0.88; Job-Stress α = 0.80