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首页> 外文期刊>The Journal of Development Studies >Agricultural Production, Dietary Diversity and Climate Variability
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Agricultural Production, Dietary Diversity and Climate Variability

机译：农业生产，饮食多样性和气候变化

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Nonseparable household modelsoutline the interlinkage between agricultural production and household consumption, yet empirical extensions to investigate the effect of production on dietary diversity and diet composition are limited. While a significant literature has investigated the calorie-income elasticity abstracting from production, this paper provides an empirical application of the nonseparable household model linking the effect of exogenous variation in planting season production decisions via climate variability on household dietary diversity. Using degree days, rainfall and agricultural capital stocks as instruments, the effect of production on household dietary diversity at harvest is estimated. The empirical specifications estimate production effects on dietary diversity using both agricultural revenue and crop production diversity. Significant effects of both agricultural revenue and crop production diversity on dietary diversity are estimated. The dietary diversity-production elasticities imply that a 10 per cent increase in agricultural revenue or crop diversity result in a 1.8 per cent or 2.4 per cent increase in dietary diversity respectively. These results illustrate that agricultural income growth or increased crop diversity may not be sufficient to ensure improved dietary diversity. Increases in agricultural revenue do change diet composition. Estimates of the effect of agricultural income on share of calories by food groups indicate relatively large changes in diet composition. On average, a 10 per cent increase in agricultural revenue makes households 7.2 per cent more likely to consume vegetables, 3.5 per cent more likely to consume fish, and increases the share of tubers consumed by 5.2 per cent.
机译：不可分离的家庭模型概述了农业生产与家庭消费之间的相互联系，但是，研究生产对饮食多样性和饮食组成影响的经验扩展是有限的。虽然大量文献研究了从生产中提取的卡路里-收入弹性，但本文提供了不可分离的家庭模型的经验应用，该模型通过气候变化对家庭饮食多样性影响了种植季节生产决策中的外源变化影响。以学位日，降雨和农业资本存量为工具，估计产量对收获时家庭饮食多样性的影响。经验指标使用农业收入和农作物生产多样性来估计生产对饮食多样性的影响。估计了农业收入和作物生产多样性对饮食多样性的重要影响。饮食多样性生产弹性意味着农业收入或作物多样性增加10％，饮食多样性分别增加1.8％或2.4％。这些结果表明，农业收入的增长或作物多样性的增加可能不足以确保改善饮食的多样性。农业收入的增加确实改变了饮食结构。对农业收入对不同食物类别的卡路里份额的影响的估计表明，饮食组成的变化较大。平均而言，农业收入增加10％，使家庭食用蔬菜的可能性增加7.2％，食用鱼的可能性增加3.5％，并使食用块茎的比例增加5.2％。

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