The Significance of Data-Sharing Policy

• 成果类型: Article
• 署名作者: Askarov, Zohid; Doucouliagos, Anthony; Doucouliagos, Hristos; Stanley, T. D.
• 署名单位: Westminster International University Tashkent; Deakin University; Deakin University
• 刊物名称: JOURNAL OF THE EUROPEAN ECONOMIC ASSOCIATION
• ISSN/ISSBN: 1542-4766
• DOI: 10.1093/jeea/jvac053
• 发表日期: 2023
• 页码: 1191-1226
• 关键词: empirical economics; replication; BIAS; credibility; con

摘要

We assess the impact of mandating data-sharing in economics journals on two dimensions of research credibility: statistical significance and excess statistical significance (ESS). ESS is a necessary condition for publication selection bias. Quasi-experimental difference-in-differences analysis of 20,121 estimates published in 24 general interest and leading field journals shows that data-sharing policies have reduced reported statistical significance and the associated t-values. The magnitude of this reduction is large and of practical significance. We also find suggestive evidence that mandatory data-sharing reduces ESS and hence decreases publication bias.