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The Direct and Indirect Effects of Mobile Phone Ownership on Maize Yields in Tanzania

Author

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  • Mangole, Cool Dady
  • Mulungu, Kelvin
  • Kaghoma, Christian Kamala
  • Kassie, Menale

Abstract

The study uses the Living Standards Measurement Study–Integrated Surveys on Agriculture to evaluate mobile phone ownership’s direct and indirect effect on yields in Tanzania. The results indicate that transitioning from not owning to owning a mobile phone improves maize yields by about 16%. Mobile phones indirectly affect maize yield by facilitating farmers’ access to extension services – regardless of the type of provider – but only account for about 2% of the total effects. Considering both direct and indirect effects, this study suggests that extension services partially moderate this causal relationship. Further, the impact of mobile phones is stronger among male-headed farm households.

Suggested Citation

  • Mangole, Cool Dady & Mulungu, Kelvin & Kaghoma, Christian Kamala & Kassie, Menale, 2025. "The Direct and Indirect Effects of Mobile Phone Ownership on Maize Yields in Tanzania," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 57(3), pages 371-392, August.
    • Handle: RePEc:cup:jagaec:v:57:y:2025:i:3:p:371-392_1
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