Conventional wisdom, meta-analysis, and research revision in economics

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gechert_conventional_2024.pdf (365.83 KB)
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2025-05-20
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John Wiley and Sons Inc
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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%.
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Conventional wisdom
Meta-analysis
Systematic review
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Gechert, S., Mey, B., Opatrny, M., Havranek, T., Stanley, Bom, P. R. D., Doucouliagos, H., Heimberger, P., Irsova, Z., & Rachinger, H. J. (2025). Conventional wisdom, meta-analysis, and research revision in economics. Journal of Economic Surveys, 39(3), 980-999. https://doi.org/10.1111/JOES.12630
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https://hdl.handle.net/20.500.14454/3501
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