To reduce such biases, results separating developed and emerging economies are presented. Later, robustness checks are carried out using a more inclusive sample in terms of country coverage although this comes at the cost of granularity related to the loss of information on the nature of the participation in GVCs (whether low or high-skilled). First, inward FDI stocks correlate with backward participation (as documented in OECD, 2015a), second it also affects the technology and therefore its effects can have a skill-bias which can then lead to changes in wage inequality.50 Nevertheless, in developed countries higher inward stocks of FDI correlate with lower wage inequality whilst in emerging countries the relationship is insignificant.