1983, PhD in Economics, University of Chicago. 1982-88, Assistant Professor, University of Rochester; 1988-90, Professor, University of Chicago; 1988-90, Sloan Foundation Fellowship; 1990-96, Professor, University of California, Berkeley; 1991, Royal Bank Fellow, Canadian Institute for Advanced Research; 1996-2008, Professor, GSB Stanford; 2001-07, Founder and owner, Aplia; since 2008, current position. Interests: technology, education, long-term growth, development in poorest countries.