Christopher Thomas Southgate Ragan (born August 7, 1962) is a Canadian academic and economist. He is best known for his research on monetary policy, and for his popular introductory textbook, Economics, now in its fourteenth edition and co-authored by Richard Lipsey. He is chair of Canada's Ecofiscal Commission, a group of Canadian economists seeking to broaden the discussion of environmental pricing reform beyond the academic sphere and into the realm of practical policy application.