Demand curve steep downward implication three characteristics:High income marginal price and demand curve: downhill, monopoly can increase the way discount sales. Because it is selling more products to the new price, so the income side of small value (or average income level) and the yield per unit of product first, but because of the low price, not only applicable to the unit sales of the product is further applied to all products in the unit and can sell at a higher price.
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