SOCIAL NETWORKS BEHIND INFORMAL WORK: EVIDENCE FROM ARGENTINA Yanina Eliana Domenella Master Thesis CEMFI No. 1205 December 2012 CEMFI Casado del Alisal 5; 28014 Madrid Tel. (34) 914 290 551. Fax (34) 914 291 056 Internet: www.cemfi.es This paper is a revised version of the Master's Thesis presented in partial fulfillment of the 2010-2012 Master in Economics and Finance at the Centro de Estudios Monetarios y Financieros (CEMFI). I would like to thank my adviser, David Dorn, for his guidance throughout this project. I am grateful to Stéphane Bonhomme, Manuel Bagues, Lucciano Villacorta, classmates and participants in the thesis presentations for their helpful comments. I want to thank my friends in Argentina and my family, and dedicate this thesis to them: Mom, Dad, Gime, Meli, Bruno, Lucas and my grandmother Elvira. Finally, I am particularly grateful to Diego for his useful advice regarding this paper and love and support during these years. This thesis is also dedicated to you. Of course, all remaining errors and omissions are my own.