OLS estimates of labour market concentration on skill/competency demand (group 2), Binary measure across high and low skill occupations
| Cognitive | Hard skills | Organizational | Social | Digital | |
|---|---|---|---|---|---|
| Group 2, Binary measure: High-skill occupations | |||||
| log(HHI) | 0.0020 | 0.0038** | 0.0026* | 0.0060*** | 0.0028** |
| (0.0013) | (0.0013) | (0.0011) | (0.0012) | (0.0011) | |
| MDV | 0.540 | 0.550 | 0.211 | 0.532 | 0.287 |
| mean(HHI*10k) | 1,340 | 1,340 | 1,340 | 1,340 | 1,340 |
| R2 | 0.258 | 0.222 | 0.163 | 0.293 | 0.348 |
| N | 279,239 | 279,239 | 279,239 | 279,239 | 279,239 |
| Group 2, Binary measure: Low-skill occupations | |||||
| log(HHI) | −0.0012 | 0.0028** | −0.0031*** | 0.0002 | −0.0013* |
| (0.0010) | (0.0011) | (0.0004) | (0.0010) | (0.0006) | |
| MDV | 0.162 | 0.275 | 0.030 | 0.381 | 0.056 |
| mean(HHI*10k) | 1,298 | 1,298 | 1,298 | 1,298 | 1,298 |
| R2 | 0.096 | 0.220 | 0.093 | 0.462 | 0.107 |
| N | 273,788 | 273,788 | 273,788 | 273,788 | 273,788 |
| Cognitive | Hard skills | Organizational | Social | Digital | |
|---|---|---|---|---|---|
| log(HHI) | 0.0020 | 0.0038** | 0.0026* | 0.0060*** | 0.0028** |
| (0.0013) | (0.0013) | (0.0011) | (0.0012) | (0.0011) | |
| MDV | 0.540 | 0.550 | 0.211 | 0.532 | 0.287 |
| mean(HHI*10k) | 1,340 | 1,340 | 1,340 | 1,340 | 1,340 |
| 0.258 | 0.222 | 0.163 | 0.293 | 0.348 | |
| N | 279,239 | 279,239 | 279,239 | 279,239 | 279,239 |
| log(HHI) | −0.0012 | 0.0028** | −0.0031*** | 0.0002 | −0.0013* |
| (0.0010) | (0.0011) | (0.0004) | (0.0010) | (0.0006) | |
| MDV | 0.162 | 0.275 | 0.030 | 0.381 | 0.056 |
| mean(HHI*10k) | 1,298 | 1,298 | 1,298 | 1,298 | 1,298 |
| 0.096 | 0.220 | 0.093 | 0.462 | 0.107 | |
| N | 273,788 | 273,788 | 273,788 | 273,788 | 273,788 |
Note(s): Each observation consists in a vacancy. This table reports the OLS regression outputs using as dependent variables the binary measure of the finer skill classification (group 2) described in section 4. The independent variable is the log of the employment HHI, measured at the industry (2-digit ATECO code), province (NUTS-3), and year level. All the regressions include year, province, industry, and occupation (ISCO 4-dig) fixed effects. Robust standard errors in parentheses ***p < 0.01, **p < 0.05, *p < 0.1
Source(s): Authors' calculation on AIDA and Wollybi data in 2015–2018 period