P -hacking and Significance Stars
研究了美国经济学会期刊在2016年取消回归表中显著性星号的政策对P值操纵和发表偏倚的影响，发现该政策没有统计上显著的效果。
Abstract In mid-2016, all journals of the American Economic Association stopped including significance stars in their regression tables. This policy aimed to reduce the emphasis on statistical significance and shift the focus to the broader economic importance of research findings. This study examines the impact of this change on p-hacking and publication bias. I employ a difference-in-difference design, as well as the battery of tests proposed by Elliott et al. (2022b). I find no statistically significant effect of this policy.