2005 · Alan Manning, Joanna K. Swaffield · London School of Economics and Political Science Research Online (London School of Economics and Political Science) · 12
2002 · Stephen Nickell, Stephen J. Redding, et al. · London School of Economics and Political Science Research Online (London School of Economics and Political Science) · 12
2002 · Stephen Nickell, Stephen J. Redding, et al. · London School of Economics and Political Science Research Online (London School of Economics and Political Science) · 2