摘要：The article describes the Nicaraguan hydrocarbon -specifically diesel and gasoline-commercialization chain as highly concentrated, where one company concentrates a big percentage of the market in the stage of distribution and sale. Our model identified the presence of asymmetry in magnitude as well as in speed of adjustment for diesel and super gasoline. In terms of the speed of adjustment of prices, both products present asymmetry because adjustment periods differ between price rises and falls. This asymmetry in the magnitude of adjustment describes a situation in which for both products the rises in international prices involve a more than proportional rise in domestic prices. The adjustment is more significant for diesel. On the other hand, falls in international prices produce national falls in the same magnitude for diesel but not for gasoline whose price descends less than proportionally to the international price fall.
关键词：Price / Market Power / Asymmetry / Oil / Hydrocarbonsle
