[23] Razin, A., Sadka, E., Swagel, P., 2002b. Tax burden and migration: a polit-
ical economy theory and evidence, Journal of Public Economics 85,167—190.
[24] Razin, A., Sadka, E., 2004.Welfare migration: is the net fiscal burden a
good measure of its economic impact on the welfare of the native-born
population? CESifo Economic Studies 50, 709-714.
[25] Tabellini, G., 2000. A positive theory of social security. Scandinavian Jour-
nal of Economics 102, 523— 545.
[26] Storesletten, K., 2000. Sustaining fiscal policy through immigration. The
Journal of Political Economy 108, 300-24.
[27] Verbon, H.A.A., Verhoeven, M.J.M., 1992. Decision making on pension
schemes under rational expectations. Journal of Economics 56, 71— 97.
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