A monopoly is a firm that faces a downward sloping demand, and has a choice about what price to charge - an increase in price doesn't send most or all of the customers away to rivals.

垄断是指企业面对着一条下降的需求曲线，却可以选择要价，即价格的上升不会把所有或者大部分顾客推向竞争对手。

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In their vivid imaginations, they see upward-sloping supply curves, downward-sloping demand curves, and all the implications that arise from these and other assumptions.

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You could try to increase total sales by lowering prices, but if you face a downward sloping demand curve then maximum profits will always occur at a lower production level than maximum revenue.

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Considering the upward sloping expected long-term demand trajectory for Asian countries, the attraction that this project might hold is not difficult to fathom.

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