1. Alexiadis, S., Eleftheriou, K.: A note on the relation between inter-regional inequality and economic efficiency: evidence from the US states. Reg. Sci. Policy Pract. 3(1), 37–44 (2011)
2. Cuadrado-Roura, J., Aroca, P. (eds.): Regional problems and policies in Latin America. Advances in Spatial Sciences. Springer, Berlin (2013)
3. Baldwin, R.E., Martin, P.: Agglomeration and regional growth. In: Henderson, J.V., Thisse, J.F. (eds.) Handbook of regional and urban economics. Cities and geography, vol. 4. Elsevier, North-Holland (2004)
4. Baldwin, R., Forslid, R., Martin, P., Ottaviano, G., Robert-Nicoud, F.: Economic geography and public policy, p. 504. Princeton University Press, Princeton (2005)
5. Barro, R., Xala-i-Martin, J.: Economic Growth. McGraw-Hill, McGraw-Hill Advanced Series in Economics, New York (2004)