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Does mobile network coverage increase the performance of informal firms? Evidence from sub-Saharan Africa

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  • Damien Girollet

    (BSE - Bordeaux sciences économiques - UB - Université de Bordeaux - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

Abstract

This paper investigates whether mobile network coverage affects the performance of informal firms in Africa. Using business surveys conducted by Research ICT Africa in 2017-18 in eight sub-Saharan African countries, we rely on historic exposure to lightning strikes as an instrument for mobile network coverage to address endogeneity issues. Our findings show that firms with access to mobile connectivity report significantly higher sales and profits, supporting theoretical predictions on the overall positive effects of digital technology diffusion. As expected, this effect is even stronger for informal firms that actively leverage mobile technologies in their business operations, reflecting the direct benefits of purposeful adoption. These findings suggest that, while mobile network coverage and mobile phone ownership have expanded rapidly across Africa, effective adoption of mobile technology remains a key priority. Significant challenges persist regarding digital inequalities in usage, driven by affordability and skill gaps, highlighting the need for public policies to ensure that informal firms have equitable access to the economic opportunities offered by digital infrastructure.

Suggested Citation

  • Damien Girollet, 2026. "Does mobile network coverage increase the performance of informal firms? Evidence from sub-Saharan Africa," Post-Print hal-05652224, HAL.
    • Handle: RePEc:hal:journl:hal-05652224
    DOI: 10.1016/j.infoecopol.2025.101150
    as

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