2027年经济学论文及其复现资料-持续更新

资源库：

Harvard Dataverse

The Quarterly Journal of Economics Dataverse

• The Fall of the Labor Share and the Rise of Superstar Firms

作者：David Autor, David Dorn, Lawrence F Katz, Christina Patterson, John Van Reenen

英文摘要：The fall of labor’s share of GDP in the United States and many other countries in recent decades is well documented but its causes remain uncertain. Existing empirical assessments typically rely on industry or macro data, obscuring heterogeneity among firms. In this article, we analyze micro panel data from the U.S. Economic Census since 1982 and document empirical patterns to assess a new interpretation of the fall in the labor share based on the rise of “superstar firms.” If globalization or technological changes push sales toward the most productive firms in each industry, product market concentration will rise as industries become increasingly dominated by superstar firms, which have high markups and a low labor share of value added. We empirically assess seven predictions of this hypothesis: (i) industry sales will increasingly concentrate in a small number of firms; (ii) industries where concentration rises most will have the largest declines in the labor share; (iii) the fall in the labor share will be driven largely by reallocation rather than a fall in the unweighted mean labor share across all firms; (iv) the between-firm reallocation component of the fall in the labor share will be greatest in the sectors with the largest increases in market concentration; (v) the industries that are becoming more concentrated will exhibit faster growth of productivity; (vi) the aggregate markup will rise more than the typical firm’s markup; and (vii) these patterns should be observed not only in U.S. firms but also internationally. We find support for all of these predictions.

中文摘要：近几十年来，美国和许多其他国家的劳动力在国内生产总值中的份额下降是有据可查的，但其原因仍不确定。现有的经验评估通常依赖于行业或宏观数据，掩盖了企业之间的异质性。在这篇文章中，我们分析了自1982年以来美国经济普查的微观面板数据，并记录了经验模式，以评估基于 "超级明星公司 "的崛起而对劳动力份额下降的新解释。如果全球化或技术变革将销售推向每个行业中最有生产力的公司，那么产品市场集中度将上升，因为各行业越来越多地被超级明星公司所主导，这些公司具有高额的加价和低劳动附加值份额。我们从经验上评估了这一假设的七个预测。(i) 行业销售将越来越集中于少数企业；(ii) 集中度上升最快的行业将有最大的劳动份额下降；(iii) 劳动份额的下降将主要由重新分配驱动，而不是所有企业的未加权平均劳动份额下降。(iv) 劳动份额下降的公司间

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