Simioni, Michel, Thomas-Agnan, Christine and Trinh, Thi Huong (2016) Calorie intake and income in China: New evidence using semiparametric modelling with generalized additive models. Vietnam Journal of Mathematical Applications, 14 (1). pp. 11-26.

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Recent research on calorie intake and income relationship abounds with parametric models but usually gives inconclusive results. Our paper aims at contributing to this literature by using recent advances in the estimation of generalized additive models with penalized spline regression smoothing (GAM). These semi-parametric models enable mixing parametric and nonparametric functions of explanatory variables and enlarge the distribution of the response variable. The revealed performance test (Racine and Parmeter, 2014), supported by simulation data, shows that GAM models outperform the parametric models. Using data from CHNS in 2006, 2009 and 2011, we find a positive and statistically significant relationship between household calorie intake and household income for the poor. Then the impact of increasing income on calorie consumption slows down for the middle class and the rich. In addition, we find that income-calorie elasticities are generally small, ranging from 0.07 to 0.12.

Item Type: Article
Sub-title: New evidence using semiparametric modelling with generalized additive models
Language: English
Date: 2016
Refereed: Yes
Uncontrolled Keywords: Calorie intake and income, generalized additive models, CHNS data, revealed performance test, cross validation procedure
JEL Classification: C14 - Semiparametric and Nonparametric Methods
C15 - Simulation Methods
C30 - General
C52 - Model Evaluation and Selection
Divisions: TSE-R (Toulouse)
Site: UT1
Date Deposited: 03 May 2018 13:56
Last Modified: 02 Apr 2021 15:57
OAI Identifier:
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