Demeny, Paul Population and the invisible hand / Paul Demeny - New York : Population Council (PC) , 1986 - 27p. : ill. ; 22 cm. - Working papers (Population Council. Center for Policy Studies) No. 123 . Includes bibliographical references. Subjects--Topical Terms: Population policyPopulation --Economic aspects Gov. Doc. Class. No.: US PC CPS WP-123