Unit nonresponse at the firm level: a cross-border analysis using the IAB-ReLOC data

Journal for Labour Market Research

Table 4 Descriptive statistics for the German and the Czech sample

Variable	Germany (N = 7264)	Czech Republic (N = 9162)
Firm characteristics
No. of employees
1–5	0.11	0.26
6–9	0.05	0.07
10–19	0.07	0.09
20–49	0.14	0.15
50–99	0.16	0.12
100–199	0.15	0.07
200–499	0.23	0.06
500–999	0.06	0.02
1000 +	0.04	0.01
Missing	0.00	0.15
No. of establishments	3.02	–
MNE group (dummy: yes = 1)	0.26	0.30
Distance to the German-Czech border (of the region the firm is located in, in km)	250.91	119.13
Firm in BHP 1975 (dummy: yes = 1)	0.42	–
Firm age (in years; of firms established after 1975)	17.32	–
Border region (domestic country; dummy: yes = 1)	0.10	0.25
Interviewer characteristics^a
Interviewer age (in years)	60.91	43.93
Education level
Low	0.55	–
Medium	0.19	–
High	0.26	–
No. of assigned firms	48.00	73.59
Male (dummy: yes = 1)	0.68	0.30
FDI characteristics (only for MNE group; N = 1895 in Germany, N = 2711 in the Czech Republic)
Equity share	0.92	0.90
Direct investment (dummy: yes = 1)	0.64	0.59
Border region (foreign country; dummy: yes = 1)	0.37	0.16
Duration of investment (in years)	9.98	9.82

Source: IAB-ReLOC data. Remarks: In case of categorical variables, the share of the respective category is indicated. In case of metric variables, the mean is indicated. The number of cases is lower than in Table 3 as only cases without any missing values in the explanatory variables are included in the estimations. Table 8 in Appendix shows the distribution according to industry affiliation
^aThe differences in the descriptive statics for the interviewers between Tables 4 and 5 are due to different numbers of cases. In Table 5 every interviewer is counted only once, whereas in Table 4 the observation level is the firm. Thus, interviewers with a higher number of assigned firms are included more often