TY - JOUR AU - Sand,Edith AU - Razin,Assaf TI - Immigration and the Survival of Social Security: A Political Economy Model JF - National Bureau of Economic Research Working Paper Series VL - No. 12800 PY - 2006 Y2 - December 2006 UR - http://www.nber.org/papers/w12800 L1 - http://www.nber.org/papers/w12800.pdf N1 - Author contact info: Edith Sand Eitan Berglas School of Economics Tel Aviv University Tel Aviv 69978, ISRAEL E-Mail: edith.sand@boi.org.il Assaf Razin Department of Economics Cornell University Uris 422 Ithaca, NY 14853 Tel: 607/255-9625 Fax: 607/255-2818 E-Mail: ar256@cornell.edu AB - In the political debate people express the idea that immigrants are good because they can help pay for the old. The paper explores this idea in a dynamic political-economy setup. For this purpose we develop an OLG political economy model of social security and migration. We characterize sub-game perfect Markov equilibria where immigration policy and pay-as-you-go (PAYG) social security system are jointly determined through a majority voting process. The main feature of the model is that immigrants are desirable for the sustainability of the social security system because the political system is able to manipulate the ratio of old to young and thereby the coalition which supports future high social security benefits. We demonstrate that the older is the native born population the more likely is that the immigration policy is liberalized and the social security system survives. ER -