以货币为媒介的序贯分散市场及其一般均衡性质
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| Title | A Sequential-Separated Monetary Economy and the Nature of Its General Equilibrium
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| 作者 | 谢志平 |
| Author | Xie Zhiping |
| 作者单位 | 山东大学经济研究院 |
| Organization | Shandong University |
| 作者Email | zpxie1963@gmail.com |
| 中文关键词 | 一般均衡 Radner均衡 序贯经济 分散市场 竞争定价 |
| Key Words | General Equilibrium; Radner Equilibrium; Sequence Economy; Separated Markets; Competitive Pricing |
| 内容提要 | Arrow & Debru（1954）中的交易必须在零时刻集中进行。Radner（1972）从时间角度对Arrow & Debru（1954）中的交易结构进行了改造，本文将进一步从空间角度进行改造，即交易将是序贯分散进行的。分散后，每个子市场中的人数可能会很少，完全竞争假设将不适合。本文研究在分散的子市场中买卖双方将如何通过非完全竞争进行定价。本文证明，在一定条件下，分散定价的结果将向集中定价的结果收敛，并且存在均衡的偏唯一性。 |
| Abstract | In the economy of Arrow-Debru(1954), all contracts of trades are assumed to be concentratedly made before the economy’s beginning. Radner (1972) reconstructed it by allowing the contracts to be sequentially made along the economy’s deploy, and this paper will reconstruct it further by allowing agents to make contracts separately. After every market being separated, every submarket can probably have only few agents to compete, so that it makes no sense to assume submarkets being perfectly competitive. This paper will study how agents to price the trades in a sequential and separated market economy via imperfect competition, and it will prove that under some conditions the separated pricing is identical to concentrated pricing and there is partial uniqueness in the equilibrium. |
| 文章编号 | WP3 |
| 登载时间 | 2010-10-15 |
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