Nutrition for all? Input subsidies and equitable diets

Abstract

While agricultural input subsidies can improve productivity and nutrition, a key unanswered question is whether such government initiatives influence equitable nutrition access across genders. We study gender disparities in dietary diversity among 7783 smallholder farms in Zambia, evaluating the potential of subsidies to mitigate gaps. Using Oaxaca‐Blinder decomposition methods, results reveal female‐headed households (FHHs) have significantly lower dietary diversity than male‐headed ones, with gaps ranging from 6% to 12% along the distribution. Male‐headed households (MHHs) also show 9% higher input subsidy participation, influenced by education and agricultural extension access among others. Crucially, increased FHHs' participation in input subsidies could potentially close the gendered dietary diversity gap, even surpassing MHHs by 17.8%, underscoring the promise of targeted efforts to improve gender equity. However, achieving socioeconomic parity with MHHs further amplifies positive impacts. Given these findings, facilitating FHHSs' access to input subsidies can promote more equitable nutrition outcomes between genders. Broader participation could be enabled by strengthening agricultural extension and education to equip farmers, especially marginalized female‐headed and remote households, to leverage subsidized inputs. Overall, this study demonstrates that prioritizing female‐headed households' inclusion in input subsidy programs, alongside integrated support, holds strong potential to narrow gendered disparities in dietary diversity among smallholder farms in Zambia. It provides key insights to inform the design of nutrition‐sensitive, gender‐aware agricultural policies.