TY - JOUR AU - Bó,Ernesto Dal AU - Bó,Pedro Dal AU - Snyder,Jason TI - Political Dynasties JF - National Bureau of Economic Research Working Paper Series VL - No. 13122 PY - 2007 Y2 - May 2007 UR - http://www.nber.org/papers/w13122 L1 - http://www.nber.org/papers/w13122.pdf N1 - Author contact info: Ernesto Dal Bó University of California, Berkeley Haas School of Business 545 Student Services Building #1900 Berkeley, CA 94720-1900 Tel: 510 643 1606 E-Mail: dalbo@haas.berkeley.edu Pedro Dal Bó Department of Economics Brown University 64 Waterman Street Providence, RI 02912 Tel: 401/863-2953 E-Mail: pdalbo@brown.edu Jason Snyder Northwestern University School of Law 357 East Chicago Avenue Chicago, IL 60611-3069 E-Mail: j-snyder@law.northwestern.edu AB - We study political dynasties in the United States Congress since its inception in 1789. We document historic and geographic patterns in the evolution and profile of political dynasties, study the extent of dynastic bias in legislative politics versus other occupations, and analyze the connection between political dynasties and political competition. We also study the self-perpetuation of political elites. We find that legislators who enjoy longer tenures are significantly more likely to have relatives entering Congress later. Using instrumental variables methods, we establish that this relationship is causal: a longer period in power increases the chance that a person may start (or continue) a political dynasty. Therefore, dynastic political power is self-perpetuating in that a positive exogenous shock to a person's political power has persistent effects through posterior dynastic attainment. In politics, power begets power. ER -