The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis

Estimating food- and nutrient-income elasticities is important for making food and nutrition policies to combat malnutrition. There are many studies that have estimated the relationship between income growth and food/nutrient demand in China, but the results are highly heterogeneous. We conducted a...

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Main Authors: Jinlu Zhao, Jiaqi Huang, Fengying Nie
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/14/22/4711
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author Jinlu Zhao
Jiaqi Huang
Fengying Nie
author_facet Jinlu Zhao
Jiaqi Huang
Fengying Nie
author_sort Jinlu Zhao
collection DOAJ
description Estimating food- and nutrient-income elasticities is important for making food and nutrition policies to combat malnutrition. There are many studies that have estimated the relationship between income growth and food/nutrient demand in China, but the results are highly heterogeneous. We conducted a meta-analysis in China to systematically review the elasticity of food, calories, and other nutrients to income. We considered a meta-sample using a collection of 64 primary studies covering 1537 food-income elasticities, 153 nutrient-income elasticities, and 147 calorie-income elasticity estimates. There are significant differences in the size of the income elasticities across food and nutrient groups. We found that food- and calorie-income elasticity appear to decline as per capita income increases, except for vitamin and aquatic products. We also found a publication bias for food and calories, and in particular, the study attributes may be important, as they can influence estimates. Given the limited study on nutrient-income elasticity, understanding the impact of income changes on nutrient intake is an important direction worthy of further research.
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spelling doaj.art-c6d598b3a9fa48949a0fc70ed1f75f8e2023-11-24T09:29:52ZengMDPI AGNutrients2072-66432022-11-011422471110.3390/nu14224711The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-AnalysisJinlu Zhao0Jiaqi Huang1Fengying Nie2Agricultural Information Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaAgricultural Information Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaAgricultural Information Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaEstimating food- and nutrient-income elasticities is important for making food and nutrition policies to combat malnutrition. There are many studies that have estimated the relationship between income growth and food/nutrient demand in China, but the results are highly heterogeneous. We conducted a meta-analysis in China to systematically review the elasticity of food, calories, and other nutrients to income. We considered a meta-sample using a collection of 64 primary studies covering 1537 food-income elasticities, 153 nutrient-income elasticities, and 147 calorie-income elasticity estimates. There are significant differences in the size of the income elasticities across food and nutrient groups. We found that food- and calorie-income elasticity appear to decline as per capita income increases, except for vitamin and aquatic products. We also found a publication bias for food and calories, and in particular, the study attributes may be important, as they can influence estimates. Given the limited study on nutrient-income elasticity, understanding the impact of income changes on nutrient intake is an important direction worthy of further research.https://www.mdpi.com/2072-6643/14/22/4711food consumptionnutrientcaloriesincome elasticitymeta-analysis
spellingShingle Jinlu Zhao
Jiaqi Huang
Fengying Nie
The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
Nutrients
food consumption
nutrient
calories
income elasticity
meta-analysis
title The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
title_full The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
title_fullStr The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
title_full_unstemmed The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
title_short The Income Elasticities of Food, Calories, and Nutrients in China: A Meta-Analysis
title_sort income elasticities of food calories and nutrients in china a meta analysis
topic food consumption
nutrient
calories
income elasticity
meta-analysis
url https://www.mdpi.com/2072-6643/14/22/4711
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