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扭曲的技术采纳

Distorted Technology Adoption
The Economic Journal · 2025 · Stephen Ayerst

中文摘要

企业层面的制度扭曲在多大程度上驱动了跨国技术差异?我构建了一个技术采纳的量化模型,其中异质性企业依据其潜在生产率与制度环境采纳技术。制度环境由依赖于企业规模的收入楔子表示,这些楔子扭曲了企业决策。模型经过校准以匹配美国的企业就业分布以及新技术的平均采纳时长。在欠发达国家,所测得的依赖于规模的扭曲阻碍了高生产率企业,推迟了新技术的采纳,因为这些企业(在其他情形下)本是早期采纳者。所测得的依赖于规模的扭曲差异,解释了所观测到的采纳时滞跨国差异的约一半。此外,与仅考虑静态错配相比,扭曲的技术采纳使总量生产率损失增加了一倍以上。

Abstract

Abstract To what extent do firm-level institutional distortions drive cross-country technology differences? I develop a quantitative model of technology adoption in which heterogeneous firms adopt technology depending on their underlying productivity and institutional environment. The institutional environment is represented by size-dependent firm-level wedges on revenues that distort firm decisions. The model is calibrated to match the US firm employment distribution and the average adoption length of new technologies. In less developed countries, measured size-dependent distortions hinder highly productive firms, delaying the adoption of new technologies as these firms are (otherwise) early adopters. Measured differences in size-dependent distortions explain around half of the observed cross-country variation in adoption lags. Additionally, distorted technology adoption over doubles the aggregate productivity loss compared to static misallocation alone.
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