Electronic copy available at: https://ssrn.com/abstract=3190195 1 SERIAL BREAKTHROUGH INNOVATION: THE ROLES OF SEPARATENESS, SELF-EFFICACY, AND IDEALISM Melissa A. Schilling Stern School of Business New York University 40 West 4 th Street New York, NY 10012 mschilli@stern.nyu.edu NYU Working Paper, March, 2018