Deconstructing the (un)affordability of clean cooking fuels through a randomized trial in rural Tanzania

Annelise Gill-Wiehl (), Isha Ray, Robert Katikiro, Daniel M. Kammen and Alan Hubbard
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Annelise Gill-Wiehl: University of California
Isha Ray: University of California
Robert Katikiro: University of Dar es Salaam
Daniel M. Kammen: University of California
Alan Hubbard: University of California

Nature Energy, 2025, vol. 10, issue 7, 836-846

Abstract: Abstract Low-income users struggle to save for clean cooking fuel costs. We test whether a lockbox intervention paired with micro-saving nudges could alleviate the unaffordability of clean fuels. In a year-long stepped-wedge randomized control trial in Tanzania (n = 511), we find that compared to savings nudges only, a lockbox and savings nudges increased annual refills of liquefied petroleum gas (LPG) by 1.4 (0.054 per 2 weeks ([95% confidence interval: 0.043, 0.066], P

Date: 2025
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DOI: 10.1038/s41560-025-01778-w

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