企业大小竞争的异质性

IF 0.8 4区经济学 Q3 ECONOMICS

Bulletin of Economic Research Pub Date : 2023-09-08 DOI:10.1111/boer.12418

Kenji Fujiwara

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引用次数: 0

摘要

本文在一个模型中对生产率异质的寡头垄断和垄断竞争企业进行了比较静态分析。我们证明，（i）寡头在位者的进入，（ii）降低垄断竞争进入者的进入成本，以及（iii）市场规模扩张提高了整个经济体的平均生产率。然而，（i）和（iii）提高了福利，但（ii）可能会因为寡头垄断公司的存在而降低福利。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Firm heterogeneity in competition among the big and the small

This paper makes comparative statics in a model in which oligopolistic and monopolistically competitive firms that are heterogeneous in productivity compete. We demonstrate that (i) entry of oligopolistic incumbents, (ii) reduction in entry cost of monopolistically competitive entrants, and (iii) market size expansion improve the average productivity in the whole economy. However, (i) and (iii) raise welfare, but (ii) may lower welfare because of the presence of oligopolistic firms.

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来源期刊

Bulletin of Economic Research ECONOMICS-

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： The Bulletin of Economic Research is an international journal publishing articles across the entire field of economics, econometrics and economic history. The Bulletin contains original theoretical, applied and empirical work which makes a substantial contribution to the subject and is of broad interest to economists. We welcome submissions in all fields and, with the Bulletin expanding in new areas, we particularly encourage submissions in the fields of experimental economics, financial econometrics and health economics. In addition to full-length articles the Bulletin publishes refereed shorter articles, notes and comments; authoritative survey articles in all areas of economics and special themed issues.