Institution: | 1. Harvard Business School and NBER, 25 Harvard Way, Baker Library 265, Boston, MA 02163, United States;2. Harvard Business School and NBER, 25 Harvard Way, Baker Library 365, Boston, MA 02163, United States;3. USI Lugano, Swiss Finance Institute, and CEPR, Via G. Buffi 13, Lugano 6904, Switzerland |