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Refining Public Policies with Machine Learning: The Case of Tax Auditing

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Listed:
  • Guiso, Luigi
  • Battaglini, Marco
  • Lacava, Chiara
  • Miller , Douglas L.
  • Patacchini, Eleonora

Abstract

We study how ML techniques can be used to improve tax auditing efficiency using administrative data without the need of randomized audits. Using Italy’s population data on sole proprietorship tax returns and audits, our new approach addresses the challenge that predictions must be trained on human-selected data. There are substantial margins for raising revenue from audits by improving the selection of taxpayers to audit with ML. Replacing the 10% least promising audits with an equal number selected by our algorithm raises detected tax evasion by as much as 38%, and evasion that is actually paid back by 29%.

Suggested Citation

  • Guiso, Luigi & Battaglini, Marco & Lacava, Chiara & Miller , Douglas L. & Patacchini, Eleonora, 2023. "Refining Public Policies with Machine Learning: The Case of Tax Auditing," CEPR Discussion Papers 17796, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:17796
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    JEL classification:

    • C55 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Large Data Sets: Modeling and Analysis
    • H26 - Public Economics - - Taxation, Subsidies, and Revenue - - - Tax Evasion and Avoidance

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