New York University - Stern School of Business, Berkley Center for Entrepreneurial Studies, University of Pennsylvania - Business & Public Policy Department, Institute for International Economics, Council on Foreign Relations (CFR) - Council on Foreign Relations- Washington D.C., University of Maryland - Department of Economics, University of Pennsylvania - Wharton School, University of Texas at Austin - Lyndon B. Johnson School of Public Affairs, University of California, Berkeley - Department of Economics, University of Chicago - Booth School of Business, National Bureau of Economic Research (NBER)Harvard University - Technology & Operations Management Unit, Technology Policy Institute, Hoover Institution and Department of Economics, Stanford University, Clemson University, National Economic Research Associates Inc. (NERA) (Deceased), Georgetown University - McDonough School of Business, Stanford University, New York University (NYU) - Department of Economics, Massachusetts Institute of Technology (MIT) - Sloan School of Management, Stanford Institute for Economic Policy Research, University of Colorado at Boulder - Department of Economics, Massachusetts Institute of Technology (MIT) - Sloan School of Management, Georgetown University Law Center, University of California, Berkeley - Business & Public Policy Group, School of Information, Technology Policy Institute, Kansas State University - Department of Economics and Institute for Business Innovation

Stanford University - Department of Economics, New York University - Stern School of Business, Berkley Center for Entrepreneurial Studies, University of Pennsylvania - Business & Public Policy Department, Council on Foreign Relations (CFR) - Council on Foreign Relations- Washington D.C., Columbia University - Law School, Stanford University - The Hoover Institution on War, Revolution and Peace, Princeton University, Woodrow Wilson School, Brookings Institution, University of Maryland - Department of Economics, American Enterprise Institute (AEI), Charles River Associates (CRA), Mendocino College, Canadian Investment Review - Rogers Media, affiliation not provided to SSRN, Technology Policy Institute, Alfred P. Sloan Foundation, National Economic Research Associates Inc. (NERA) (Deceased), Princeton University - Princeton School of Public and International Affairs, Carnegie Mellon University - David A. Tepper School of Business (Deceased), American Enterprise Institute (AEI), Yale School of Management (Deceased), University of Michigan, Stephen M. Ross School of Business, George Mason University - Center for Study of Public Choice, Cato Institute, Yale University - Department of Economics, University of Maryland - Department of Economics, Milken Institute, University of Chicago, Booth School of Business, University of Arizona - Eller College of Management, Brookings Institution, University of Tennessee, Knoxville, Massachusetts Institute of Technology (MIT) - Sloan School of Management, Brookings Institution, Arizona State University (ASU) - Economics Department, Massachusetts Institute of Technology (MIT) - Department of Economics, Harvard University - Harvard Kennedy School (HKS), Columbia University - Columbia Business School, Finance, Haas School of Business, UC Berkeley, Vanderbilt University - Law School, Washington University in St. Louis - Murray Weidenbaum Center on the Economy, Government, and Public Policy, University of California, Berkeley - Economic Analysis & Policy Group and Harvard University - Harvard Kennedy School (HKS)