垄断竞争下的生产力与再分配:微观面板数据分析

IF 1.6 4区 经济学 Q2 ECONOMICS SOUTH AFRICAN JOURNAL OF ECONOMICS Pub Date : 2023-08-29 DOI:10.1111/saje.12355
Samuel Vika Mhlanga
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引用次数: 0

摘要

本文研究了需求侧和供给侧控制下的结构性总生产率增长(APG)分解,确定了企业和经济结果的比较静态预测,并检验了投入扭曲的模式。通过从定价条件转移到具有产品品种加价异质性的市场,本文发现生产效率低下从- 3.61%放大到- 11.41%,全要素再配置从0.15%放大到8.91%。生产率结果对需求函数的结构性变化、企业规模调整和企业成长具有显著的鲁棒性。同样,投入再分配对需求结构和工厂扩张的变化具有鲁棒性。此外,所有企业在共同加价下的再配置对大型企业在异质加价下的再配置具有鲁棒性。另一种选择是,大公司面临需求缺乏弹性,收取更高的加成,从而模仿所有公司的调查行为。在自给自足的情况下,小型低效工厂比小型高效工厂收取更高的费用。对于小型(大型)工厂,需求弹性随着工业产量的增加(减少)而增加(减少)。最后,资源受限企业单位资本密集度的增加会增加劳动力扭曲,减少资本扭曲,同时减少资源不受限企业的资本扭曲。
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Productivity and reallocation under monopolistic competition: A Micro panel data analysis
This article studies the structural aggregate productivity growth (APG) decomposition with demand‐ and supply‐side controls, determines comparative statics predictions for firms and economic outcomes and examines patterns of input distortions. By moving from price‐taking conditions to markets featuring markup heterogeneity for product varieties, the paper finds amplification of production inefficiency from −3.61% to −11.41% and amplification of total factor reallocation from 0.15% to 8.91%. The productivity results are robust to structural variations in the demand function, firm scale adjustment and firm growth. Similarly, input reallocation is robust to variation in demand structure and plant expansion. Furthermore, reallocation under common markups among all firms is robust to reallocation under heterogeneous markups among larger firms. Alternatively, large firms face demand inelasticities and charge higher markups thereby mimicking the behaviour of the survey of all firms. Under autarky, small unproductive plants charge higher markups than their small efficient counterparts. Demand elasticity increases (decreases) with industry output for smaller (larger) plants. Finally, a unit increase in capital intensity for resource‐constrained plants raises labour distortions and reduces capital distortions while reducing capital distortions for resource‐unconstrained firms.
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来源期刊
CiteScore
2.70
自引率
0.00%
发文量
29
期刊介绍: The South African Journal of Economics (SAJE) has a long and distinguished history, ranking amongst the oldest generalist journals in economics. In terms of editorial focus, the journal remains a generalist journal covering all fields in economics, but with a particular focus on developmental and African contexts. Toward this end, the editorial policy of the SAJE emphasizes scholarly work on developing countries, with African and Southern African development challenges receiving particular attention. While the SAJE remains a generalist journal, it encourages empirical work on developing and African economies. Importantly the focus is on both theoretical developments and methodological innovations that reflect developing country and African contexts and the policy challenges they pose. The objective of the journal is to be the premier vehicle for the publication of the most innovative work on development country and particularly African economic problems. It aims to be the target journal of choice not only for scholars located in Southern Africa, but of any scholar interested in the analysis of development challenges and their African applications. Clear theoretical foundations to work published should be a hallmark of the journal, and innovation in both theory and empirics appropriate to developing country and the African contexts are encouraged. In terms of submissions, the journal invites submissions primarily of original research articles, as well as survey articles and book reviews relevant to its context. In the case of both survey articles and book reviews, authors should note that a key minimum requirement is a critical reflection on the broader context of the existing literature.
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