3Pahlo Fajnzylber, Ana M. Femandes(2004). International Economic Activities and the Demand for Skilled Labor: Evidence from Brazil and China. The Second Industrial Development Conference(World Bank, Washington DC).
4Haskel,J, Heden, Y(1999). Computers and the Demand for Skilled Labor. Industry and Establishment--Level Panel Evidence for the UK. Economic Journal 109, 68--79-.