Food choice responses to changes in the price of a staple crop: a discrete choice experiment of maize in rural Malawi

M. Matita (), J. Mazalale (), M. Quaife (), D. Johnston (), L. Cornelsen (), T. Kamwanja (), R. Smith () and H. Walls ()
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M. Matita: University of Malawi
J. Mazalale: University of Malawi
M. Quaife: Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
D. Johnston: SOAS University of London
L. Cornelsen: Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine
T. Kamwanja: University of Malawi
R. Smith: University of Exeter
H. Walls: Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine

Food Security: The Science, Sociology and Economics of Food Production and Access to Food, 2024, vol. 16, issue 1, No 1, 16 pages

Abstract: Abstract Price and affordability are important drivers of food choice, particularly for rural smallholder farming households in Malawi, experiencing extreme poverty, food insecurity, and lack of dietary diversity. Lowering the cost of staple crops such as maize targeted by agricultural input subsidy programmes (AISPs) may potentially increase consumption of the staple crop, but it might also lead to consumption of a more diverse range of foods. Using a discrete choice experiment, this study investigated food choice responses to changes in maize price in rural Malawi. Study participants (n = 400) were given a series of choice tasks for which they were asked to choose between food baskets with varying cost, reflecting local prices and with maize at both high and low price. Baskets contained different types of foods including maize, rice, cabbage, small-dried fish, and/or a soft drink. The data were analysed using mixed logit models including investigation of heterogenous effects based on socio-demographic characteristics, food security and actual market purchases. Individuals revealed a preference, as expected, for lower cost food baskets. Small-dried fish and cabbage were the highest valued food products. At a low cost of maize, the expected utility from a basket with maize was greater than a basket with other items, particularly among households with high- and low-food purchases, low socioeconomic status, living in Phalombe District, and experiencing food insecurity, indicating that among such populations a low price of maize will not necessarily lead to increases in dietary diversity. In contrast, among households living in Lilongwe District, with high SES and food secure, a lower maize price will not lead to a loss in dietary diversity as they prefer a basket containing non-maize products over maize. The findings suggest that achieving food security and dietary diversity may require a range of policy approaches addressing different pathways of impact as opposed to relying on subsidizing inputs for staple crop production.

Keywords: Choice experiment; Dietary diversity; Input subsidies; Food choices; Staple prices (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s12571-023-01401-4

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