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Three observations on wages and measured cognitive ability
Cawley, J.; Heckman, J.; Vytlacil, E.
Firms' human capital, R&D and performance: a study on French and Swedish firms
Ballot, G.; Fakhfakh, F.; Taymaz, E.
Natural inequality, production and economic growth
Epstein, G.S.; Spiegel, U.
An analysis of labour adjustment costs in unionized economies
Modesto, L.; Thomas, J.P.
Co-authorship and the output of academic economists