Il est établi en appliquant les rapports travail-production propres aux industries (ces rapports servent normalement au calcul de la productivité du travail) aux valeurs directes et indirectes de production brute des industries en cause.
However, it is difficult to quantify this process, as the incremental changes to production occur at a highly detailed level, and because it is impossible to sort out other factors, notably technological change.Giga-fren Giga-fren