1. 1) Auty, R. M., Sustaining Development in Mineral Economies: The Resource Curse Thesis, Routledge, London (1993).
2. 2) Balaguer, L., and Cantavella-Jorda, M., ``Tourism as a long-run economic growth factor: The Spanish case,'' Applied Economics, 34: 877-884 (2002).
3. 3) Baldwin, R. E., Forslid, R., Martin, P., Ottaviano, G., and Robert-Nicoud, F., Economic Geography and Public Policy, Princeton University Press, Princeton (2003).
4. 4) Barbier, E. B., Natural Resources and Economic Development, Cambridge University Press, Cambridge, U.K. (2005).
5. 5) Behrens, K., Lamorgese, A.-R., Ottaviano, G., and Tabuchi, T., ``Beyond the home market effect: Market size and specialization in a multi-country world,'' Journal of International Economics, 79: 259-265 (2009).