We define specific -general- human capital as the set of occupations whose use is spread in a limited -wide- set of industries. Using the EU Labor Force Survey database, we identify these human capital types and analyze their employment and education. This exercise yields a persistent assignment of occupations into specific and general human capital types. The share of specific human capital varies across countries and has declined over time almost everywhere. We consider a stylized two-sector model where one of the sectors uses both types of human capital and the other specializes on general human capital. We show that a mean preserving increase in the share of specific human capital reduces -increases- the contribution of shocks in non-specialized sector and increases -reduces- the contribution of shocks in specialized sector to the variance of final output, when sectoral outputs are gross complements -substitutes-