TY - JOUR AU - Brown,Jeffrey R. AU - Ivkovich,Zoran AU - Smith,Paul A. AU - Weisbenner,Scott TI - Neighbors Matter: Causal Community Effects and Stock Market Participation JF - National Bureau of Economic Research Working Paper Series VL - No. 13168 PY - 2007 Y2 - June 2007 UR - http://www.nber.org/papers/w13168 L1 - http://www.nber.org/papers/w13168.pdf N1 - Author contact info: Jeffrey R. Brown Department of Finance University of Illinois at Urbana-Champaign 515 East Gregory Drive Champaign, IL 61820 Tel: 217/333-3322 E-Mail: brownjr@illinois.edu Zoran Ivkovich Department of Finance Michigan State University 315 Eppley Center East Lansing, MI 48824 Tel: (517) 353-4593 E-Mail: ivkovich@bus.msu.edu Paul A. Smith Federal Reserve Board of Governors Washington, DC 20551 E-Mail: Paul.A.Smith@frb.gov Scott Weisbenner University of Illinois at Urbana-Champaign Department of Finance 340 Wohlers Hall, MC-706 1206 South Sixth Street Champaign, IL 61820 Tel: 217/333-0872 Fax: 217/244-9867 E-Mail: weisbenn@illinois.edu AB - This paper establishes a causal relation between an individual's decision of whether to own stocks and average stock market participation decision of the individual's community. We instrument for the average ownership of an individual's community with lagged average ownership of the states in which one's non-native neighbors were born. Combining this instrumental variables approach with controls for individual and community fixed effects, a broad set of time-varying individual and community controls, and state-by-year effects, rules out alternative explanations. To further establish that word-of-mouth communication drives this causal effect, we show that the results are stronger in more sociable communities. ER -