“…On the other hand, union density varies by sector. It is the highest (higher than 70%) in the sectors of agriculture, manufacture of wood, manufacture of fabricated metal products, electricity, gas and water supply, construction and water transport and the lowest (lower than 35%) in the sectors of computer and 2 From an empirical point of view, the latter hypothesis is confirmed in an indirect way by Goerke & Pannenberg (2011) finding a negative effect of union membership on individual dismissals in large firms and by Woodhams and Lupton (2006) finding a positive effect of the presence of an HR professional at the firm, which is more common in large firms, on equality policies. related activities.…”