IDEAS home Printed from https://ideas.repec.org/p/nbr/nberwo/34435.html

Cannabis and Respiratory Health

Author

Listed:
  • Jayani Jayawardhana
  • Jialin Hou
  • Johanna Catherine Maclean

Abstract

Cannabis legalization has increased substantially in the past two decades with state-level policies that permit possession this product. A potential concern with cannabis legalization and the corresponding increase in consumption is that – because smoking is the most common consumption mode – respiratory health could worsen. In this study, we offer new evidence on the impact of recreational cannabis laws on asthma outcomes. To do so, we combine commercial health insurance claims and survey data over the period 2008 to 2022 with difference-in-differences and event-study methods. Our findings suggest that asthma diagnoses do not change following legalization of recreational cannabis, while asthma-related dispensed prescription medications decline, and asthma-related outpatient visits and inpatient hospitalizations are stable. An analysis of changes in use of smoked and non-smoked cannabis post-law suggests that, on net, the increase in overall cannabis use attributable to legalization is driven by use of non-smoked cannabis, which may explain why we find limited evidence that asthma outcomes worsen post-law. Collectively, these results suggest that expanded access to legal cannabis has not worsened respiratory health overall, and hint that some patients may use cannabis to manage asthma symptoms.

Suggested Citation

  • Jayani Jayawardhana & Jialin Hou & Johanna Catherine Maclean, 2025. "Cannabis and Respiratory Health," NBER Working Papers 34435, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:34435
    Note: EH
    as

    Download full text from publisher

    File URL: http://www.nber.org/papers/w34435.pdf
    Download Restriction: Access to the full text is generally limited to series subscribers, however if the top level domain of the client browser is in a developing country or transition economy free access is provided. More information about subscriptions and free access is available at http://www.nber.org/wwphelp.html. Free access is also available to older working papers.
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Goodman-Bacon, Andrew, 2021. "Difference-in-differences with variation in treatment timing," Journal of Econometrics, Elsevier, vol. 225(2), pages 254-277.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Bas Scheer & Wiljan van den Berge & Maarten Goos & Alan Manning & Anna Salomons, 2022. "Alternative Work Arrangements and Worker Outcomes: Evidence from Payrolling," CPB Discussion Paper 435, CPB Netherlands Bureau for Economic Policy Analysis.
    2. Wright, Austin L. & Sonin, Konstantin & Driscoll, Jesse & Wilson, Jarnickae, 2020. "Poverty and economic dislocation reduce compliance with COVID-19 shelter-in-place protocols," Journal of Economic Behavior & Organization, Elsevier, vol. 180(C), pages 544-554.
    3. Ichev, Riste & Valentinčič, Aljoša, 2025. "The effect of impact investing on performance of private firms," Research in International Business and Finance, Elsevier, vol. 73(PA).
    4. Mac Clay, Pablo & Börner, Jan & Sellare, Jorge, 2023. "Institutional and macroeconomic stability mediate the effect of auctions on renewable energy capacity," Energy Policy, Elsevier, vol. 180(C).
    5. Katrin Huber & Geske Rolvering, 2023. "Public child care and mothers’ career trajectories," Working Papers 228, Bavarian Graduate Program in Economics (BGPE).
    6. Shun-Yang Lee & Julian Runge & Daniel Yoo & Yakov Bart & Anett Gyurak & J. W. Schneider, 2023. "COVID-19 Demand Shocks Revisited: Did Advertising Technology Help Mitigate Adverse Consequences for Small and Midsize Businesses?," Papers 2307.09035, arXiv.org, revised Jan 2024.
    7. Wei, Qingfang & Liu, Yuan & Cai, Weixing & Wan, Jiangtao, 2025. "Open government data and personal default: Evidence from China," Journal of Asian Economics, Elsevier, vol. 100(C).
    8. Coury, Michael & Falconer, Liam & La Nauze, Andrea, 2024. "Wildfire smoke and private provision of public air-quality monitoring," Journal of Environmental Economics and Management, Elsevier, vol. 127(C).
    9. Catalina Amuedo‐Dorantes & Francisca M. Antman, 2022. "De facto immigration enforcement, ICE raid awareness, and worker engagement," Economic Inquiry, Western Economic Association International, vol. 60(1), pages 373-391, January.
    10. D. Mark Anderson & Yang Liang & Joseph J. Sabia, 2024. "Mandatory seatbelt laws and traffic fatalities: A reassessment," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 39(3), pages 513-521, April.
    11. Nadja van 't Hoff & Giovanni Mellace & Seetha Menon, 2025. "Gender Differences in Healthcare Utilisation -- Evidence from Unexpected Adverse Health Shocks," Papers 2509.01310, arXiv.org.
    12. Shirin, Farzana, 2023. "Does Teacher Salary Support Improve Student Learning Outcomes," 2023 Annual Meeting, July 23-25, Washington D.C. 335793, Agricultural and Applied Economics Association.
    13. Arne Henningsen & Guy Low & David Wuepper & Tobias Dalhaus & Hugo Storm & Dagim Belay & Stefan Hirsch, 2024. "Estimating Causal Effects with Observational Data: Guidelines for Agricultural and Applied Economists," IFRO Working Paper 2024/03, University of Copenhagen, Department of Food and Resource Economics.
    14. Martti Kaila & Emily Nix & Krista Riukula, 2021. "Disparate Impacts of Job Loss by Parental Income and Implications for Intergenerational Mobility," Opportunity and Inclusive Growth Institute Working Papers 53, Federal Reserve Bank of Minneapolis.
    15. Yang Haodong & Liu Jialin & Wang Gaofeng, 2025. "Knowledge Innovation Effect of University Computing Power in China: Evidence from the top500 Supercomputers," Research in Higher Education, Springer;Association for Institutional Research, vol. 66(1), pages 1-30, February.
    16. Stefan Bauernschuster & Michael Grimm & Cathy M. Hajo, 2023. "The Impact of Margaret Sanger’s Birth Control Clinics on Early 20th Century U.S. Fertility and Mortality," CESifo Working Paper Series 10421, CESifo.
    17. Lan, Xiujuan & Hu, Zheneng & Wen, Chuanhao, 2023. "Does the opening of high-speed rail enhance urban entrepreneurial activity? Evidence from China," Socio-Economic Planning Sciences, Elsevier, vol. 88(C).
    18. Fabio Bothner & Annette Elisabeth Töller & Paul Philipp Schnase, 2022. "Do Lawsuits by ENGOs Improve Environmental Quality? Results from the Field of Air Pollution Policy in Germany," Sustainability, MDPI, vol. 14(11), pages 1-18, May.
    19. Li, Qianqian & Zhao, Zhengtang & Chen, Tingting, 2024. "The effect of public pension insurance integration on income disparities between urban-rural households: Evidence from a quasi-experiment in China," Finance Research Letters, Elsevier, vol. 66(C).
    20. Silverio-Murillo, Adan & Hoehn-Velasco, Lauren & Rodriguez Tirado, Abel & Balmori de la Miyar, Jose Roberto, 2021. "COVID-19 blues: Lockdowns and mental health-related google searches in Latin America," Social Science & Medicine, Elsevier, vol. 281(C).

    More about this item

    JEL classification:

    • I1 - Health, Education, and Welfare - - Health

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:34435. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/nberrus.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.