| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP10862 |
| DP10862 Price Competition in Product Variety Networks | |
| Yves Zenou; Philip Ushchev | |
| 发表日期 | 2015-10-11 |
| 出版年 | 2015 |
| 语种 | 英语 |
| 摘要 | We develop a product-differentiated model where the product space is a network defined as a set of varieties (nodes) linked by their degree of substituabilities (edges). In this network, we also locate consumers so that the location of each consumer (node) corresponds to her "ideal" variety. We show that there exists a unique Nash equilibrium in the price game among firms. Equilibrium prices are determined by firms' weighted Bonacich centralities and the average willingness to pay across consumers. They both hinge on the network structure of the firm-product space. We also investigate how local product differentiation and the spatial discount factor affect the equilibrium prices. We show that these effects non-trivially depend on the network structure. In particular, we find that, in a star-shaped network, the firm located in the star node does not always enjoy higher monopoly power than the peripheral firms. |
| 主题 | Industrial Organization ; International Trade and Regional Economics |
| 关键词 | Monopolistic competition Networks Product variety Spatial competition |
| URL | https://cepr.org/publications/dp10862 |
| 来源智库 | Centre for Economic Policy Research (United Kingdom) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/539692 |
| 推荐引用方式 GB/T 7714 | Yves Zenou,Philip Ushchev. DP10862 Price Competition in Product Variety Networks. 2015. |
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