Product diversity in asymmetric oligopoly: is the quality of consumer goods too low?
Product diversity in asymmetric oligopoly: is the quality of consumer goods too low?
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非对称寡头垄断下的产品多样性：消费品质量是否太低？
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
A. Palma
中科院分区：
文献类型：
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作者：
Simon P. Anderson;A. Palma
我们分析了包含水平差异和质量差异的寡头垄断模型。高质量的商品价格过高且产量不足。当市场覆盖相当充分时，低质量产品在其净社会贡献为负（意味着过度进入）时可能会有利可图。在相对开放的市场中，即使是低质量的商品也生产不足，并且可能存在进入不足的情况。当固定成本与质量无关时，市场往往会选择合适的公司。否则，市场在应该生产高质量产品的时候可能会生产出低质量的产品。该模型使用酸奶市场数据进行校准。版权所有 2001 Blackwell Publishing Ltd
We analyse an oligopoly model incorporating horizontal differentiation and quality differences. High quality goods are overpriced and underproduced. When the market is fairly well covered, low quality products may be profitable when their net social contribution is negative, implying excessive entry. In a relatively uncovered market, even low quality goods are underproduced and there may be underentry. When fixed costs are independent of quality, the market tends to select the right firms. Otherwise, the market may produce low quality products when it should produce high quality ones. The model is calibrated using market data for yogurt. Copyright 2001 by Blackwell Publishing Ltd