Table A6 OLS estimates of labour market...

Table A6

OLS estimates of labour market concentration on skill/competency demand (group 2), TF-IDF measure; with time-variant fixed effects

	Cognitive	Hard skills	Organizat	Social	Digital
log(HHI)	−0.0009**	0.0013***	−0.0006***	0.0010***	−0.0005***
	(0.0004)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
Year × Prov	✓	✓	✓	✓	✓
Year × Ind	✓	✓	✓	✓	✓
Year × ISCO4	✓	✓	✓	✓	✓
MDV	0.076	0.089	0.022	0.060	0.024
mean(HHI*10k)	1,319	1,319	1,319	1,319	1,319
R²	0.041	0.088	0.066	0.097	0.058
N	552,960	552,960	552,960	552,960	552,960

	Cognitive	Hard skills	Organizat	Social	Digital
log(HHI)	−0.0009**	0.0013***	−0.0006***	0.0010***	−0.0005***
	(0.0004)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
Year × Prov	✓	✓	✓	✓	✓
Year × Ind	✓	✓	✓	✓	✓
Year × ISCO4	✓	✓	✓	✓	✓
MDV	0.076	0.089	0.022	0.060	0.024
mean(HHI*10k)	1,319	1,319	1,319	1,319	1,319
R²	0.041	0.088	0.066	0.097	0.058
N	552,960	552,960	552,960	552,960	552,960

Note(s): Each observation consists in a vacancy. This table reports the OLS regression outputs using as dependent variables the TF-IDF intensity 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 also include 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

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