Oligopoly and oligopsony in international trade

被引:1
|
作者
Macedoni, Luca [1 ]
Tyazhelnikov, Vladimir [2 ]
机构
[1] Aarhus Univ, Aarhus, Denmark
[2] Univ Sydney, Camperdown, Australia
来源
CANADIAN JOURNAL OF ECONOMICS-REVUE CANADIENNE D ECONOMIQUE | 2024年 / 57卷 / 02期
关键词
GENERAL EQUILIBRIUM; COMPETITION; MONOPSONY; MARKET; POWER;
D O I
10.1111/caje.12714
中图分类号
F [经济];
学科分类号
02 ;
摘要
We study the effects of international trade on the oligopsony power of firms in input markets. We build a theoretical model of international trade in which firms are oligopolists in the market for final goods and oligopsonists in the market for inputs. Consistent with evidence from the literature, firms' markups over unit costs rise with the level of oligopsony power and of oligopoly power. While trade liberalization decreases market power in one market, it has the opposite effect in the other. In particular, international competition between oligopolists in final goods markets causes oligopsony power to increase and oligopoly power to decline. In a simulation, we show that the increase in oligopsony power can more than offset the reduction in oligopoly power, resulting in a net increase in markups over unit costs. Oligopole et oligopsone en commerce international. Nous & eacute;tudions les effets du commerce international sur le pouvoir de l'oligopsone de soci & eacute;t & eacute;s dans des march & eacute;s des facteurs de production. Nous construisons un mod & egrave;le th & eacute;orique du commerce international o & ugrave; les soci & eacute;t & eacute;s sont oligopolistiques dans le march & eacute; des biens de consommation et oligopsoniques dans le march & eacute; des facteurs de production. Conform & eacute;ment aux donn & eacute;es probantes tir & eacute;es de la litt & eacute;rature, les majorations des soci & eacute;t & eacute;s par rapport aux co & ucirc;ts unitaires augmentent de concert avec le niveau de pouvoir de l'oligopsone et de pouvoir de l'oligopole. Alors que la lib & eacute;ralisation du commerce diminue le pouvoir de march & eacute; dans un march & eacute;, elle a l'effet oppos & eacute; dans l'autre. Plus particuli & egrave;rement, la concurrence internationale entre les soci & eacute;t & eacute;s oligopolistiques dans les march & eacute;s des biens de consommation entra & icirc;ne une hausse du pouvoir de l'oligopsone et une diminution du pouvoir de l'oligopole. Dans une simulation, nous d & eacute;montrons que la hausse du pouvoir de l'oligopsone peut plus que compenser la r & eacute;duction du pouvoir de l'oligopole, produisant une augmentation nette des majorations par rapport aux co & ucirc;ts unitaires.
引用
收藏
页码:401 / 429
页数:29
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