Citation: Af. Alhajji et D. Huettner, OPEC and world crude oil markets from 1973 to 1994: Cartel, oligopoly, or competitive?, ENERGY J, 21(3), 2000, pp. 31-60
Citation: Af. Alhajji et D. Huettner, The Target Revenue model and the world oil market: Empirical evidence from1971 to 1994, ENERGY J, 21(2), 2000, pp. 121-144