Santa Barbara, California | Spencer Tracy | Santa Barbara | University of California, Santa Barbara | Barbara Bush | Barbara Stanwyck | Barbara Mikulski | Barbara Hershey | Barbara Boxer | Marks & Spencer | Barbara Ehrenreich | Spencer | Barbara Mandrell | Barbara Kruger | Santa Bárbara | Barbara Eden | Herbert Spencer | Barbara Walters | Barbara Cartland | Barbara Steele | Barbara Cook | Barbara | Wedding of Charles, Prince of Wales, and Lady Diana Spencer | Spencer Gulf | Santa Barbara (TV series) | Jimmy Spencer | Spencer W. Kimball | Spencer Wells | Saint Barbara | Bud Spencer |
He is known as co-author of a seminal 1986 article in The American Economic Review, with Tracy R. Lewis, on “Oligopoly and Financial Structure: The Limited Liability Effect”, as well as his work in international trade with Barbara Spencer, particularly the Brander Spencer model.