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. 2021 Nov:153:102747.
doi: 10.1016/j.jdeveco.2021.102747. Epub 2021 Sep 25.

Texts don't nudge: An adaptive trial to prevent the spread of COVID-19 in India

Girija Bahety  1 , Sebastian Bauhoff  2   3 , Dev Patel  4 , James Potter  2
Affiliations

Texts don't nudge: An adaptive trial to prevent the spread of COVID-19 in India

Girija Bahety et al. J Dev Econ. 2021 Nov.

Abstract

We conduct an adaptive randomized controlled trial to evaluate the impact of a SMS-based information campaign on the adoption of social distancing and handwashing in rural Bihar, India, six months into the COVID-19 pandemic. We test 10 arms that vary in delivery timing and message framing, changing content to highlight gains or losses for either one's own family or community. We identify the optimal treatment separately for each targeted behavior by adaptively allocating shares across arms over 10 experimental rounds using exploration sampling. Based on phone surveys with nearly 4,000 households and using several elicitation methods, we do not find evidence of impact on knowledge or adoption of preventive health behavior, and our confidence intervals cannot rule out positive effects as large as 5.5 percentage points, or 16%. Our results suggest that SMS-based information campaigns may have limited efficacy after the initial phase of a pandemic.

Keywords: Adaptive trial; COVID-19; Health behaviors; India; Information and communication; SMS.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

References

    1. Alatas, Vivi, Chandrasekhar, Arun G., Mobius, Markus, Olken, Benjamin A., Paladines, Cindy, 2020. Designing effective celebrity messaging: Results from a nationwide Twitter experiment on public health in Indonesia. NBER Working Paper w25589, National Bureau of Economic Research.
    1. Andrews, Isaiah, Kitagawa, Toru, McCloskey, Adam, 2021. Inference on winners. NBER Working Paper w25456, National Bureau of Economic Research.
    1. Armanasco Ashleigh A., Miller Yvette D., Fjeldsoe Brianna S., Marshall Alison L. Preventive health behavior change text message interventions: A meta-analysis. Am. J. Prev. Med. 2017;52(3):391–402. - PubMed
    1. Armand A., Augsburg B., Bancalari A. International Growth Center; 2021. Coping With Covid-19 Measures in Informal Settlements: Final Report COVID-19-20077-IND-1.
    1. Banerjee, Abhijit, Alsan, Marcella, Breza, Emily, Chandrasekhar, Arun, Chowdhury, Abhijit, Duflo, Esther, Goldsmith-Pinkham, Paul, Olken, Benjamin, 2020. Messages on COVID-19 prevention in India increased symptoms reporting and adherence to preventive behaviors among 25 million recipients with similar effects on non-recipient members of their communities. NBER Working Paper w27496. National Bureau of Economic Research.

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