Surviving the Storms: How Climate Change Is Starving Malawi, Madagascar, Mozambique and Zimbabwe: An ARDL Modelling

This research examined the long-run effect of climate change on food security in Malawi, Madagascar, Mozambique and Zimbabwe using the Autoregressive Distributed Lag (ARDL) Model. The study used nine variables for quantitative analysis using data for the four countries from the World Bank spanning from 2000 to 2023, using two models. The results were validated using the Pooled Mean Group (PMG) estimator. Results from model 1 show that environmental temperature, fertilizer consumption, credit access, age dependency ratio, urbanization and land size significantly affect the percentage of crop yields. Model 2 results show that all the aforementioned factors, including cereal temperature and yields, have an effect on the prevalence of malnutrition, which was a proxy for food security in this study. Furthermore, the study used the Granger causality test to indicate a unidirectional causality direction from both models’ independent variables to dependent variables. From the econometric analysis conducted, the findings highlight the urgent need for targeted interventions, such as promoting climate-resilient agriculture, expanding access to credit and social protection policies to enhance nutritional well-being and improve resilience to climate shocks.