High frequency phone surveys for tracking food prices: Evidence from the KasuwaGo project

IF 9.8 1区经济学 Q1 FOOD SCIENCE & TECHNOLOGY

Global Food Security-Agriculture Policy Economics and Environment Pub Date : 2025-05-08 DOI:10.1016/j.gfs.2025.100863

Michael Olabisi , Uswat Adeyemi , Mywish K. Maredia , Toyin Ajibade , Hakeem Ajeigbe

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引用次数: 0

Abstract

Achieving global food security calls for real time monitoring of food prices and quality-checks on the data. Such price data can serve as early warning for natural disasters, climate shocks or policy changes. The removal of fuel and foreign exchange subsidies in Nigeria in 2023 as a case in point, created price shocks that disrupted the food system. This policy change resulted in higher transportation costs for farmers and food distributors, creating an affordability crisis for many consumers. We introduce a mobile-phone-assisted weekly price survey of key grain markets, spanning more than 100 markets and 27 states in Nigeria. We use 127,397 spatially distributed price data points from this survey to show the pattern of price increases for staple food products in Nigeria. The study demonstrates that phone calls to markets with reasonable quality-checks can provide comparable outcomes to traditional methods of monitoring market prices.

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跟踪粮食价格的高频电话调查：来自KasuwaGo项目的证据

实现全球粮食安全需要对粮食价格进行实时监测，并对数据进行质量检查。这些价格数据可以作为自然灾害、气候冲击或政策变化的早期预警。例如，尼日利亚在2023年取消了燃料和外汇补贴，造成了价格冲击，扰乱了粮食体系。这一政策变化导致农民和食品经销商的运输成本上升，给许多消费者造成了负担能力危机。我们推出了一项手机辅助的主要粮食市场每周价格调查，涵盖尼日利亚27个州的100多个市场。我们使用本次调查中127,397个空间分布的价格数据点来显示尼日利亚主要食品价格上涨的模式。研究表明，对市场进行合理的质量检查，可以提供与传统监测市场价格方法相当的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Global Food Security-Agriculture Policy Economics and Environment FOOD SCIENCE & TECHNOLOGY-

CiteScore

20.90

自引率

3.40%

发文量

期刊介绍： Global Food Security plays a vital role in addressing food security challenges from local to global levels. To secure food systems, it emphasizes multifaceted actions considering technological, biophysical, institutional, economic, social, and political factors. The goal is to foster food systems that meet nutritional needs, preserve the environment, support livelihoods, tackle climate change, and diminish inequalities. This journal serves as a platform for researchers, policymakers, and practitioners to access and engage with recent, diverse research and perspectives on achieving sustainable food security globally. It aspires to be an internationally recognized resource presenting cutting-edge insights in an accessible manner to a broad audience.