BSc, Physics, Williams College; MSc, Physics and PhD, Economics, Cornell University. Formerly: Associate Professor, Massachusetts Institute of Technology; Chancellor's Associate Professor and Chair, Economics Department, University of California, San Diego; since 2000, current position. Author of over 100 papers and four books. Member: National Academy of Science; American Academy of Science. Fellow, Econometric Society. AFA. FMA. ASA. Recipient of numerous awards including Nobel Prize in Economics, for research on autoregressive conditional heteroskedasticity (2003).