通缩于降低总需求上的效应叫做债务紧缩，在大萧条时期它可能扮演了重要的角色。
The effect of deflation in reducing aggregate demand, known as debt deflation, probably played a significant role in the Great Depression.
电影棚已经学得依赖明星效应的电影比起基于角色和故事的电影，产出利润更少。
The studios have learned that stars are much less reliable generators of profits than films based on known characters and stories.
然而，有另一个透过供给面效应运作的竞争策略上的重要角色。
However, there is another important role for competitive strategies, which operates through effects on the supply side.
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