Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria
We present evidence on evolving dietary patterns in Nigeria using six rounds of household consumption data from the Nigerian General Household Survey panel between 2011 and 2016. First, following conventional definitions in the literature, we show that Nigeria has not shown any aggregate increase in...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Agricultural and Applied Economics Association
2021
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/142323 |
| _version_ | 1855535702990651392 |
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| author | de Brauw, Alan Herskowitz, Sylvan |
| author_browse | Herskowitz, Sylvan de Brauw, Alan |
| author_facet | de Brauw, Alan Herskowitz, Sylvan |
| author_sort | de Brauw, Alan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | We present evidence on evolving dietary patterns in Nigeria using six rounds of household consumption data from the Nigerian General Household Survey panel between 2011 and 2016. First, following conventional definitions in the literature, we show that Nigeria has not shown any aggregate increase in consumption of highly processed foods over this period, contrary to patterns observed elsewhere in the region. In fact, consumption of highly processed foods at home has declined, while food consumed away from home, often assumed to be highly processed, has risen substantially. We then show that estimates of food expenditure elasticities of different food types are highly sensitive to different estimation approaches and raise concerns about some frequently used methods in the literature. In the absence of credible exogenous variation, we argue for the importance of panel methods and household fixed effects to control for time invariant factors likely to confound cross‐sectional estimates. Finally, we examine semiparametric Engel curves for different food groups and find that apparent curvature in the relationships between food budget shares and overall food expenditure levels in the raw data become nearly linear when removing variation explained by time‐invariant household factors. |
| format | Journal Article |
| id | CGSpace142323 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Agricultural and Applied Economics Association |
| publisherStr | Agricultural and Applied Economics Association |
| record_format | dspace |
| spelling | CGSpace1423232024-10-25T08:04:12Z Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria de Brauw, Alan Herskowitz, Sylvan elasticity shock food policies households elasticity of demand processed foods nutrition food consumption diet We present evidence on evolving dietary patterns in Nigeria using six rounds of household consumption data from the Nigerian General Household Survey panel between 2011 and 2016. First, following conventional definitions in the literature, we show that Nigeria has not shown any aggregate increase in consumption of highly processed foods over this period, contrary to patterns observed elsewhere in the region. In fact, consumption of highly processed foods at home has declined, while food consumed away from home, often assumed to be highly processed, has risen substantially. We then show that estimates of food expenditure elasticities of different food types are highly sensitive to different estimation approaches and raise concerns about some frequently used methods in the literature. In the absence of credible exogenous variation, we argue for the importance of panel methods and household fixed effects to control for time invariant factors likely to confound cross‐sectional estimates. Finally, we examine semiparametric Engel curves for different food groups and find that apparent curvature in the relationships between food budget shares and overall food expenditure levels in the raw data become nearly linear when removing variation explained by time‐invariant household factors. 2021-08-01 2024-05-22T12:10:19Z 2024-05-22T12:10:19Z Journal Article https://hdl.handle.net/10568/142323 en https://hdl.handle.net/10568/147246 Open Access Agricultural and Applied Economics Association de Brauw, Alan; and Herskowitz, Sylvan. 2021. Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria. American Journal of Agricultural Economics 103(4): 1294-1313. https://doi.org/10.1111/ajae.12139 |
| spellingShingle | elasticity shock food policies households elasticity of demand processed foods nutrition food consumption diet de Brauw, Alan Herskowitz, Sylvan Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title | Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title_full | Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title_fullStr | Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title_full_unstemmed | Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title_short | Income variability, evolving diets, and elasticity estimation of demand for processed foods in Nigeria |
| title_sort | income variability evolving diets and elasticity estimation of demand for processed foods in nigeria |
| topic | elasticity shock food policies households elasticity of demand processed foods nutrition food consumption diet |
| url | https://hdl.handle.net/10568/142323 |
| work_keys_str_mv | AT debrauwalan incomevariabilityevolvingdietsandelasticityestimationofdemandforprocessedfoodsinnigeria AT herskowitzsylvan incomevariabilityevolvingdietsandelasticityestimationofdemandforprocessedfoodsinnigeria |