Estimation of a censored food demand system and nutrient elasticities: A cross-sectional analysis of Sri Lanka

Manori Nimanthika Lokuge, Sanja Zivkovic, Kelly Lange, Benaissa Chidmi

Research output: Contribution to journalArticle

Abstract

A nutritional transition is occurring in Sri Lanka, which steers people away from nutrient-rich diets, contributing to diet-related disease and poor economic performance. This study examines demographic impacts on consumption of major food commodities and estimates price and expenditure elasticities for major food groups and nutrients. Data from the Sri Lankan Department of Census and Statistics Household Income and Expenditure survey are used to estimate price and expenditure elasticities for food commodities and nutrients using the Quadratic Almost Ideal Demand System (QUAIDS). The zero-expenditure problem is circumvented by employing a Tobit model. Results demonstrate the impact of price and income changes on dietary intake of households, and income and nutrition policy recommendations are presented.

Original languageEnglish
Pages (from-to)717-729
Number of pages13
JournalInternational Food and Agribusiness Management Review
Volume22
Issue number5
DOIs
StatePublished - 2019

Keywords

  • Food demand
  • Nutrient demand
  • QUAIDS
  • Tobit

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