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机器人、贸易与卢德主义:最优技术监管的充分统计量方法

Robots, Trade, and Luddism: A Sufficient Statistic Approach to Optimal Technology Regulation
Review of Economic Studies · 2022 · Arnaud Costinot、Iván Werning

中文摘要

技术变革,从机器人的出现到贸易机会的扩大,既创造了赢家也造就了输家。政府政策应如何应对?我们在次优世界中提出了最优技术监管的一般理论,其中家庭间存在丰富的异质性,对受技术变革影响的企业子集征收线性税,并对劳动收入征收非线性税。我们的第一组结果是最优税收公式,所需的结构性假设最少,涉及可利用新技术(如机器人和贸易)分配影响的相关证据加以实施的充分统计量。我们的最终结果是比较静态分析,用以说明(除其他事项外):尽管分配方面的关切为对机器人和贸易征收非零税提供了理由,但随着自动化和全球化进程的深化以及不平等的加剧,这些税收的幅度可能会下降。

Abstract

Abstract Technological change, from the advent of robots to expanded trade opportunities, creates winners and losers. How should government policy respond? We provide a general theory of optimal technology regulation in a second-best world, with rich heterogeneity across households, linear taxes on the subset of firms affected by technological change, and a non-linear tax on labour income. Our first set of results consists of optimal tax formulas, with minimal structural assumptions, involving sufficient statistics that can be implemented using evidence on the distributional impact of new technologies, such as robots and trade. Our final results are comparative static exercises illustrating, among other things, that while distributional concerns create a rationale for non-zero taxes on robots and trade, the magnitude of these taxes may decrease as the process of automation and globalization deepens and inequality increases.
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