How Far Have We Come in Coping with Criticisms of Experimental Research Approaches?

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  • 開発ミクロ実証経済学は実験系論文に寄せられる課題を解消しているか？
  • 開発ミクロ実証経済学は実験系論文に寄せられる課題を解消しているか? : 開発経済学ジャーナルのシステマティックレビューを基に
  • カイハツ ミクロ ジッショウ ケイザイガク ワ ジッケンケイ ロンブン ニ ヨセラレル カダイ オ カイショウ シテ イル カ? : カイハツ ケイザイガク ジャーナル ノ システマティックレビュー オ モト ニ
  • A Systematic Review of Recent Empirical Papers in Development Economics
  • 開発経済学ジャーナルのシステマティックレビューを基に

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<p>While development economists have, in recent years, become frontrunners in employing experimental approaches such as randomized controlled trials （RCTs） and quasi-experiments in their research, criticism still remains regarding the external validity and unclear economic mechanisms behind the causal relationships identified with such experimental methods, among others. We conduct a systematic review of the 422 experimental articles among the 1,497 articles published in four development economics journals during 2010, 2013, and from January 2016 to March 2018 to examine whether the existing literature has attempted to overcome these criticisms. We find that the topics covered in the experimental papers have expanded and more objective measurements are used for outcome variables. However, issues regarding the methods’ external validity and the unclear mechanism behind causal relationships identified still remain to be resolved. We conclude by noting the importance of establishing clear guidelines for implementing RCTs and making the experimental data, designs, and results public.</p>

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