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Let’s call! Using the phone to increase acceptance of COVID-19 vaccines

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  • Alex Armand
  • Mattia Fracchia
  • Pedro C. Vicente

Abstract

Vaccinating against COVID-19 is the main hope to end the current pandemic. We develop and test experimentally three phone-based cumulative interventions to increase COVID-19 vaccine acceptance in Mozambique. First, the provision of a simple positive message informing about these vaccines. Second, the activation of social memory on the country’s success in eradicating wild polio. Finally, the inoculation against fake news by developing among participants a critical view towards misleading information. We find that the combination of the three interventions increases COVID-19 vaccine acceptance and trust in institutions.

Suggested Citation

  • Alex Armand & Mattia Fracchia & Pedro C. Vicente, 2021. "Let’s call! Using the phone to increase acceptance of COVID-19 vaccines," NOVAFRICA Working Paper Series wp2113, Universidade Nova de Lisboa, Nova School of Business and Economics, NOVAFRICA.
    • Handle: RePEc:unl:novafr:wp2113
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    File URL: https://novafrica.org/wp-content/uploads/2021/10/2113_VF.pdf
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    References listed on IDEAS

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    1. Barrera, Oscar & Guriev, Sergei & Henry, Emeric & Zhuravskaya, Ekaterina, 2020. "Facts, alternative facts, and fact checking in times of post-truth politics," Journal of Public Economics, Elsevier, vol. 182(C).
    2. Alex Armand & Alexander Coutts & Pedro C. Vicente & Inês Vilela, 2020. "Does Information Break the Political Resource Curse? Experimental Evidence from Mozambique," American Economic Review, American Economic Association, vol. 110(11), pages 3431-3453, November.
    3. Catia Batista & Sandra Sequeira & Pedro C. Vicente, 2022. "Closing the Gender Profit Gap?," Management Science, INFORMS, vol. 68(12), pages 8553-8567, December.
    4. Marcella Alsan & Sarah Eichmeyer, 2024. "Experimental Evidence on the Effectiveness of Nonexperts for Improving Vaccine Demand," American Economic Journal: Economic Policy, American Economic Association, vol. 16(1), pages 394-414, February.
    5. Alex Armand & Britta Augsburg & Antonella Bancalari & Kalyan Kumar Kameshwara, 2021. "Countering misinformation with targeted messages: Experimental evidence using mobile phones," IFS Working Papers W21/27, Institute for Fiscal Studies.
    6. Egger, Dennis & Miguel, Edward & Warren, Shana S. & Shenoy, Ashish & Collins, Elliott & Karlan, Dean & Parkerson, Doug & Mobarak, A. Mushfiq & Fink, Günther & Udry, Christopher & Walker, Michael & Hau, 2021. "Falling living standards during the COVID-19 crisis: Quantitative evidence from nine developing countries," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 7(6), pages 1-1.
    7. McKenzie, David, 2012. "Beyond baseline and follow-up: The case for more T in experiments," Journal of Development Economics, Elsevier, vol. 99(2), pages 210-221.
    8. Jenny C. Aker & Paul Collier & Pedro C. Vicente, 2017. "Is Information Power? Using Mobile Phones and Free Newspapers during an Election in Mozambique," The Review of Economics and Statistics, MIT Press, vol. 99(2), pages 185-200, May.
    9. Grácio, Matilde & Vicente, Pedro C., 2021. "Information, get-out-the-vote messages, and peer influence: Causal effects on political behavior in Mozambique," Journal of Development Economics, Elsevier, vol. 151(C).
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    Cited by:

    1. Islam, Asad & Kusnadi, Gita & Rezki, Jahen & Sim, Armand & van Empel, Giovanni & Vlassopoulos, Michael & Zenou, Yves, 2024. "Addressing vaccine hesitancy using local ambassadors: A randomized controlled trial in Indonesia," European Economic Review, Elsevier, vol. 163(C).

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    More about this item

    Keywords

    COVID-19; vaccines; acceptance; hesitancy; information; trust; social memory; fake news; misinformation; inoculation theory; Mozambique; Africa;
    All these keywords.

    JEL classification:

    • O12 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development

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