TY - JOUR AU - Alesina,Alberto AU - Reich,Bryony TI - Nation Building JF - National Bureau of Economic Research Working Paper Series VL - No. 18839 PY - 2013 Y2 - February 2013 UR - http://www.nber.org/papers/w18839 L1 - http://www.nber.org/papers/w18839.pdf N1 - Author contact info: Alberto F. Alesina Department of Economics Harvard University Littauer Center 210 Cambridge, MA 02138 Tel: 617/495-8388 Fax: 617/495-7730 E-Mail: aalesina@harvard.edu Bryony Reich Department of Economics University College London Drayton House 30 Gordon Street London WC1H 0AX E-Mail: b.reich@ucl.ac.uk AB - Nations stay together when citizens share enough values and preferences and can communicate with each other. Homogeneity amongst people can be built with education, teaching a common language to facilitate communication, but also by brute force such as prohibiting local cultures. Democracies and non-democracies have different incentives when it comes to choosing how much and by what means to homogenize the population. We study and compare both regimes in a model where the size of countries and the degree of active homogenization in endogenous. We also offer some historical discussions of cases which illustrate our theoretical results. ER -