1. The Q Group – Institute for Quantitative Research in Finance (board of directors, 2008.present; planning committee, 2011-present; program committee, 1999.present; 40th anniversary [Fall 2006] program subcommittee chair)
  2. Chicago Quantitative Alliance
  3. Research Council on Global Investment of TIAA-CREF
  4. American Economic Association
  6. Society of Quantitative Analysts
  7. Hawken School alumni association (class historian 1984-1996; formerly Associate of the James A. Hawken Society; 40th reunion committee)
  8. University of Chicago Alumni Association (Chicago Society, 2009)
  9. Penn Club of New York
  10. Torrey Pines Association, La Jolla, California (life member).