7 For more information on this topic, see Helpman and Krugman (1985), Grossman and Helpman (1991),  Melitz(2003), Broda and Weinstein (2006), Melitz and Ottaviano, (2007), Antoniades (2015). 8 Saia, A., Andrews, D. and Albrizio, S. (2015), “Productivity Spillovers from the Global Frontier and Public Policy:  Industry-Level Evidence”, OECD Economics Department Working Papers, No 128. 9 OECD data, unweighted average.
10 OECD (2015), Pensions at a Glance 2015: OECD and G20 indicators, OECD Publishing, Paris. 11 OECD data, unweighted average. 12 See, for example, Antràs, P., de Gortari, A. and Itskhoki, O. (forthcoming), “ Globalization, Inequality and Welfare”,  Journal of International Economics. 13 Broner, F. and Ventura, J. (2016), “Rethinking the Effects of Financial Globalisation”, Quarterly Journal of  Economics, Vol.