To compensate for its lack of economic clout, ECOWAS has learnt to work in tandem with beefier bodies and countries, raising the alarm when it spots danger on the horizon.
Two basic assumptions of the classical economic order quantity (EOQ) model are the model has infinite horizon and the costs are static.
经典的经济订购批量（EOQ）问题有两个基本假设：时域无限和模型的费用参数不变。
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Pyeongchang ran under the slogan" New Horizon", arguing Asia's stellar economic growth in recent decades and the continent's massive population, offered an untapped market for winter sports.