收入增长对营养需求的异质性影响研究
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摘要
利用国家统计局城镇住户调查数据,运用非参数估计方法分析了收入与营养需求间的关系,结果表明,收入水平与营养需求间的关系呈非线性。进一步运用工具变量分位数回归实证研究了在不同营养摄入水平上收入对营养摄入的影响,结果表明,收入对营养需求的影响在不同营养摄入水平上存在异质性,处于高营养摄入区域家庭的营养收入弹性小于处于低营养摄入区域家庭的营养弹性。因此,针对不同的人群,应采取差异化的营养政策,同时应重视宣传教育,引导科学合理膳食。
This paper analyzed the relationship between income and nutrition demand. The nonparametric estimation results showed the relationship between income and nutritional needs was nonlinear. This paper further used the instrumental quantile regression to analyze the effect of income on energy and the main nutrient intake based on the different quantiles of nutrient intake. The quantile regression results showed that the nutrient income elasticity of the households in the high nutrient intake area was lower than that in the households with low nutrient intake. Therefore,we should adopt a comprehensive policy to promote nutrition,with strengthening publicity and education and guiding the scientific and reasonable diet.
This paper analyzed the relationship between income and nutrition demand. The nonparametric estimation results showed the relationship between income and nutritional needs was nonlinear. This paper further used the instrumental quantile regression to analyze the effect of income on energy and the main nutrient intake based on the different quantiles of nutrient intake. The quantile regression results showed that the nutrient income elasticity of the households in the high nutrient intake area was lower than that in the households with low nutrient intake. Therefore,we should adopt a comprehensive policy to promote nutrition,with strengthening publicity and education and guiding the scientific and reasonable diet.
引文
[1]张车伟,蔡昉.中国贫困农村的食物需求与营养弹性[J].经济学(季刊),2002,2(4):199-216.
[2]王弟海,崔小勇,龚六堂.健康在经济增长和经济发展中的作用---基于文献研究的视角[J].经济学动态,2015(8):107-127.
[3]刘扬,邹伟.收入增长是否一定带来营养改善和营养均衡[J].经济学动态,2011(6):77-81.
[4]刘华,胡雪枝.中国城镇居民收入增长对营养需求的影响研究[J].农业技术经济,2013(2):95-103.
[5]Tian X,Yu X.The demand for nutrients in China[J].Frontiers of Economics in China,2013(2):186-206.
[6]Zheng Z,Henneberry S R.Estimating the impacts of rising food prices on nutrient intake in urban China[J].China E-conomic Review,2012,23(4):1090-1103.
[7]Meng X,Gong X,Wang Y.Impact of income growth and economic reform on nutrition availability in urban China:1986-2000[J].Economic Development&Cultural Change,2009,57(2):261-295.
[8]Huang K,Gale F.Food demand in China:income,quality,and nutrient Effects[J].China Agricultural Economics Review,2009,1(4):395-409.
[9]Tian X,Yu X.Using semiparametric models to study nutrition improvement and dietary change with different indices:The Case of China[J].Food Policy,2015,53:67-81.
[10]Nie P,Sousa-Poza A.A fresh look at calorie-income elasticities in China[J].China Agricultural Economic Review,2016,8(1):55-80.
[11]You J,Imai K,Gaiha R.Declining nutrient intake in a growing China:Does household heterogeneity matter?[J].World Development,2016,77:171-191.
[12]Fousekis P,Lazaridis P.The demand for selected nutrients by Greek households:an empirical analysis with quantile regressions[J].Agricultural Economics,2015,32(3):267-279.
[13]Thomas D.Like Father,like Son;like Mother,like Daughter:parental resources and child height[J].Journal of Human Resources,1994,29(4):950-988.
[14]杨月欣,王光亚,潘兴昌.中国食物成分表[M].北京:北京大学医学出版,2009.
[15]Lee S.Endogeneity in quantile regression models:a control function approach[J].Journal of Econometrics,2007,141(2):1131-1158.
[2]王弟海,崔小勇,龚六堂.健康在经济增长和经济发展中的作用---基于文献研究的视角[J].经济学动态,2015(8):107-127.
[3]刘扬,邹伟.收入增长是否一定带来营养改善和营养均衡[J].经济学动态,2011(6):77-81.
[4]刘华,胡雪枝.中国城镇居民收入增长对营养需求的影响研究[J].农业技术经济,2013(2):95-103.
[5]Tian X,Yu X.The demand for nutrients in China[J].Frontiers of Economics in China,2013(2):186-206.
[6]Zheng Z,Henneberry S R.Estimating the impacts of rising food prices on nutrient intake in urban China[J].China E-conomic Review,2012,23(4):1090-1103.
[7]Meng X,Gong X,Wang Y.Impact of income growth and economic reform on nutrition availability in urban China:1986-2000[J].Economic Development&Cultural Change,2009,57(2):261-295.
[8]Huang K,Gale F.Food demand in China:income,quality,and nutrient Effects[J].China Agricultural Economics Review,2009,1(4):395-409.
[9]Tian X,Yu X.Using semiparametric models to study nutrition improvement and dietary change with different indices:The Case of China[J].Food Policy,2015,53:67-81.
[10]Nie P,Sousa-Poza A.A fresh look at calorie-income elasticities in China[J].China Agricultural Economic Review,2016,8(1):55-80.
[11]You J,Imai K,Gaiha R.Declining nutrient intake in a growing China:Does household heterogeneity matter?[J].World Development,2016,77:171-191.
[12]Fousekis P,Lazaridis P.The demand for selected nutrients by Greek households:an empirical analysis with quantile regressions[J].Agricultural Economics,2015,32(3):267-279.
[13]Thomas D.Like Father,like Son;like Mother,like Daughter:parental resources and child height[J].Journal of Human Resources,1994,29(4):950-988.
[14]杨月欣,王光亚,潘兴昌.中国食物成分表[M].北京:北京大学医学出版,2009.
[15]Lee S.Endogeneity in quantile regression models:a control function approach[J].Journal of Econometrics,2007,141(2):1131-1158.