Table A2 OLS estimates of labour market...

Table A2

OLS estimates of labour market concentration on skill/competency demand (group 2), TF-IDF measure; controlling for the log of the market average firm employment size

	Cognitive	HardSkills	Organizat	Social	Digital
log(HHI)	−0.0012***	0.0011**	−0.0008***	0.0011***	−0.0004**
	(0.0005)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
log(avg. no. workers)	0.0013***	0.0013***	0.0005**	−0.0003	0.0001
	(0.0005)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
Year FE	✓	✓	✓	✓	✓
Prov. FE	✓	✓	✓	✓	✓
Ind. FE	✓	✓	✓	✓	✓
ISCO4 FE	✓	✓	✓	✓	✓
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	0.035	0.078	0.061	0.090	0.054
N	553,030	553,030	553,030	553,030	553,030

	Cognitive	HardSkills	Organizat	Social	Digital
log(HHI)	−0.0012***	0.0011**	−0.0008***	0.0011***	−0.0004**
	(0.0005)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
log(avg. no. workers)	0.0013***	0.0013***	0.0005**	−0.0003	0.0001
	(0.0005)	(0.0004)	(0.0002)	(0.0003)	(0.0002)
Year FE	✓	✓	✓	✓	✓
Prov. FE	✓	✓	✓	✓	✓
Ind. FE	✓	✓	✓	✓	✓
ISCO4 FE	✓	✓	✓	✓	✓
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	0.035	0.078	0.061	0.090	0.054
N	553,030	553,030	553,030	553,030	553,030

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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