Gottfries, Nils A permanent demand theory of pricing / Nils Gottfries - Stockholm : Institute for International Economic Studies (IIES) , 1986 - 21p. : ill. ; 28 cm. - Seminar paper (University of Stockholm, Institute for International Economic Studies,) no. 345 . Includes bibliographical references. Subjects--Topical Terms: Microeconomics--Mathematical modelsPrices--Mathematical models Gov. Doc. Class. No.: SE Sto. U IIES SP-345