Shane Greenstein is a Professor of Business Administration at the Harvard School of Business and is the MBA Class of 1957 Professor of Business Administration. Professor Greenstein is also co-director of the program on the economics of digitization at The National Bureau of Economic Research.

Professor Greenstein is the author of How the Internet Became Commercial, a book that describes how the Internet evolved a platform used primarily universities and the military to the commercial ecosystem it is today.

Professor Greenstein previously taught at the Kellogg School of Management, Northwestern University, and at the University of Illinois, Urbana/Champaign. He received his PhD from Stanford University in 1989 and his BA from University of California at Berkeley in 1983, both in economics. He continues to receive a daily education in life from his wife and children