This study determines the impact of the adoption of improved rice varieties on household food security using farm‐level data from 900 households in Northern Ghana. We employed the doubly robust inverse probability weighted regression adjustment procedure complementary with a propensity score matching approach on two indicators of food security (household dietary diversity score and subjective food security). Across all the various estimation procedures, we observed consistent positive effects of the adoption of improved rice varieties on household food security. Policies that enhance diffusion and adoption of improved rice varieties should be encouraged to improve food security among farm households.

中文翻译：

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改良水稻品种对加纳北部家庭粮食安全的影响：双重稳健分析

这项研究使用来自加纳北部900户家庭的农场水平数据，确定采用改良水稻品种对家庭粮食安全的影响。我们在粮食安全的两个指标（家庭饮食多样性得分和主观粮食安全）上采用了双重健壮的逆概率加权回归回归调整程序，并辅以倾向得分匹配法。在所有各种估算程序中，我们观察到采用改良水稻品种对家庭粮食安全的持续积极影响。应鼓励采取政策，促进改良稻米品种的传播和采用，以改善农户的粮食安全。