但如果油田的所有者们认为油价在长期来看会呈下跌之势，他们现在便会有动力开发石油并扩大生产以求在跌价之前卖出更多的石油。
But if owners of oil reserves think that prices will fall in the long run, they gain an incentive to explore for oil and expand production now in order to sell as much oil as possible before the fall.