Robustness – Excluding firms from southern regions
| Full sample | Excluding south | Full sample | Excluding south | ||
|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | ||
| (ln) No. Training programs | t−1 | 0.0114*** | 0.0092** | ||
| (0.004) | (0.004) | ||||
| t−2 | 0.0193*** | 0.0170*** | |||
| (0.004) | (0.004) | ||||
| t−3 | 0.0179*** | 0.0165*** | |||
| (0.004) | (0.005) | ||||
| (ln) Training hours (p. c.) | t−1 | 0.0010 | 0.0009 | ||
| (0.004) | (0.005) | ||||
| t−2 | 0.0068 | 0.0071 | |||
| (0.004) | (0.005) | ||||
| t−3 | −0.0036 | −0.0039 | |||
| (0.005) | (0.005) | ||||
| Other controls | yes | yes | yes | yes | |
| R-squared | 0.054 | 0.054 | 0.052 | 0.052 | |
| Observations | 70,695 | 65,445 | 70,695 | 65,445 | |
| Full sample | Excluding south | Full sample | Excluding south | ||
|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | ||
| (ln) No. Training programs | t−1 | 0.0114*** | 0.0092** | ||
| (0.004) | (0.004) | ||||
| t−2 | 0.0193*** | 0.0170*** | |||
| (0.004) | (0.004) | ||||
| t−3 | 0.0179*** | 0.0165*** | |||
| (0.004) | (0.005) | ||||
| (ln) Training hours (p. c.) | t−1 | 0.0010 | 0.0009 | ||
| (0.004) | (0.005) | ||||
| t−2 | 0.0068 | 0.0071 | |||
| (0.004) | (0.005) | ||||
| t−3 | −0.0036 | −0.0039 | |||
| (0.005) | (0.005) | ||||
| Other controls | yes | yes | yes | yes | |
| 0.054 | 0.054 | 0.052 | 0.052 | ||
| Observations | 70,695 | 65,445 | 70,695 | 65,445 | |
Note(s): IVH estimates. Other controls include (lagged from t−1 to t−3, and in natural logarithm): Value Added, Firm's age, Tot. Intangible assets, Total liabilities, Unit labour cost, Employees, TFP. Extended tables are reported in the Appendix. Sectoral fixed effects (NACE 2-digit) and year are always included. Lewbel IV includes an exogenous instrumental variable (see Section 4.2). Significance levels: *p < 0.1; **p < 0.05; ***p < 0.01