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'High' achievers? Cannabis access and academic performance

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  • Marie, Olivier
  • Zölitz, Ulf

Abstract

This paper investigates how legal cannabis access affects student performance. Identification comes from an exceptional policy introduced in the city of Maastricht which discriminated legal access based on individuals’ nationality. We apply a difference-in-difference approach using administrative panel data on over 54,000 course grades of local students enrolled at Maastricht University before and during the partial cannabis prohibition. We find that the academic performance of students who are no longer legally permitted to buy cannabis increases substantially. Grade improvements are driven by younger students, and the effects are stronger for women and low performers. In line with how THC consumption affects cognitive functioning, we find that performance gains are larger for courses that require more numerical/mathematical skills. We investigate the underlying channels using students’ course evaluations and present suggestive evidence that performance gains are driven by improved understanding of material rather than changes in students’ study effort.

Suggested Citation

  • Marie, Olivier & Zölitz, Ulf, 2015. "'High' achievers? Cannabis access and academic performance," LSE Research Online Documents on Economics 61695, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:61695
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    Cited by:

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    2. Jenny Williams & Rosalie Liccardo Pacula & Rosanna Smart, 2019. "De Facto or De Jure? Ethnic Differences in Quit Responses to Legal Protections of Medical Marijuana Dispensaries," NBER Working Papers 25555, National Bureau of Economic Research, Inc.
    3. Ahmed El Fatmaoui, 2024. "From high school to higher education: Is recreational marijuana a consumption amenity for US college students?," Economic Inquiry, Western Economic Association International, vol. 62(3), pages 1024-1045, July.
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    6. Stephanie Cheng & Pengkai Lin & Yinliang Tan & Yuchen Zhang, 2023. "“High” innovators? Marijuana legalization and regional innovation," Production and Operations Management, Production and Operations Management Society, vol. 32(3), pages 685-703, March.
    7. Jörg Kalbfuß & Reto Odermatt & Alois Stutzer, 2018. "Medical marijuana laws and mental health in the United States," CEP Discussion Papers dp1546, Centre for Economic Performance, LSE.
    8. Hansen, Benjamin & Miller, Keaton & Weber, Caroline, 2020. "Federalism, partial prohibition, and cross-border sales: Evidence from recreational marijuana," Journal of Public Economics, Elsevier, vol. 187(C).
    9. Chu, Yu-Wei Luke & Gershenson, Seth, 2018. "High times: The effect of medical marijuana laws on student time use," Economics of Education Review, Elsevier, vol. 66(C), pages 142-153.
    10. Mezza, Alvaro & Buchinsky, Moshe, 2021. "Illegal drugs, education, and labor market outcomes," Journal of Econometrics, Elsevier, vol. 223(2), pages 454-484.
    11. Hansen, Jörgen & Davalloo, Golnaz, 2023. "Persistent Marijuana Use: Evidence from the NLSY," IZA Discussion Papers 16446, Institute of Labor Economics (IZA).
    12. Coveney, Max & Oosterveen, Matthijs, 2021. "What drives ability peer effects?," European Economic Review, Elsevier, vol. 136(C).
    13. Christopher D. Blake & Danna Kang Thomas & Joshua Hess, 2024. "Higher education: The impact of recreational marijuana on college applications," Contemporary Economic Policy, Western Economic Association International, vol. 42(2), pages 259-277, April.
    14. Chu, Luke Yu-Wei & Gershenson, Seth, 2016. "High times: The effect of medical marijuana laws on student time use," Working Paper Series 19417, Victoria University of Wellington, School of Economics and Finance.
    15. Christopher A. Ambrose & Benjamin W. Cowan & Robert E. Rosenman, 2021. "Geographical access to recreational marijuana," Contemporary Economic Policy, Western Economic Association International, vol. 39(4), pages 778-807, October.
    16. Nibbering, Didier & Oosterveen, Matthijs & Silva, Pedro Luís, 2022. "Clustered Local Average Treatment Effects: Fields of Study and Academic Student Progress," IZA Discussion Papers 15159, Institute of Labor Economics (IZA).
    17. Gunadi, Christian, 2021. "Does Expanding Access to Cannabis Affect Traffic Crashes? County-Level Evidence from Recreational Marijuana Dispensary Sales in Colorado," GLO Discussion Paper Series 964, Global Labor Organization (GLO).
    18. Borbely, Daniel & Lenhart, Otto & Norris, Jonathan & Romiti, Agnese, 2022. "Marijuana Legalization and Mental Health," IZA Discussion Papers 15729, Institute of Labor Economics (IZA).
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    20. Christian Gunadi, 2022. "Does expanding access to cannabis affect traffic crashes? County‐level evidence from recreational marijuana dispensary sales in Colorado," Health Economics, John Wiley & Sons, Ltd., vol. 31(10), pages 2244-2268, October.

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    More about this item

    Keywords

    cannabis; legalization; student performance;
    All these keywords.

    JEL classification:

    • I0 - Health, Education, and Welfare - - General

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