Conventional wisdom, meta‐analysis, and research revision in economics
系统回顾经济学中有影响力的元分析，发现修正可观测偏差后，实证效应通常更接近零，效应量相对减少45%–60%，挑战了传统智慧。
Abstract Over the past several decades, meta‐analysis has emerged as a widely accepted tool to understand economics research. Meta‐analyses often challenge the established conventional wisdom of their respective fields. We systematically review a wide range of influential meta‐analyses in economics and compare them to “conventional wisdom.” After correcting for observable biases, the empirical economic effects are typically much closer to zero and sometimes switch signs. Typically, the relative reduction in effect sizes is 45%–60%.