Krichene, Noureddine A simultaneous equations model for world crude oil and natural gas markets / Noureddine Krichene - Washington, D.C. : International Monetary Fund (IMF) , 2005 - 24p. : ill. ; 26 cm. - IMF Working Paper No. 05-32 . Includes bibliographical references Subjects--Topical Terms: Crude oilSupplyNatural gasPrices Gov. Doc. Class. No.: UN IMF Wp-05-32