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The demand for food, calories, macro...

Wijekoon, Mariko Gayani Tilakaratne.

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The demand for food, calories, macro and micro nutrients.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The demand for food, calories, macro and micro nutrients./
作者:	Wijekoon, Mariko Gayani Tilakaratne.
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 76-10(E), Section: A.
Contained By:	Dissertation Abstracts International76-10A(E).
標題:	Economics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3705051
ISBN:	9781321778311

The demand for food, calories, macro and micro nutrients.
Wijekoon, Mariko Gayani Tilakaratne.

The demand for food, calories, macro and micro nutrients. - 169 p.

Source: Dissertation Abstracts International, Volume: 76-10(E), Section: A.

Thesis (Ph.D.)--Clark University, 2015.

A country's nutritional status is generally reflected by child growth. The child growth statistics in Sri Lanka show that the country has a under nutrition problem. To add to this burden, the country has recently faced a continuous increase in food prices. Being a net food importer, Sri Lanka was affected by the rising global food prices and its price shocks in 2007/2008. Despite global prices receding after 2009, the domestic food prices continued to rise and hinder the country's effort to improve its nutrition status.

ISBN: 9781321778311Subjects--Topical Terms:

517137
Economics.

The demand for food, calories, macro and micro nutrients.
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100 1 $a Wijekoon, Mariko Gayani Tilakaratne. $3 3194404
245 1 4 $a The demand for food, calories, macro and micro nutrients.
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-10(E), Section: A.
500 $a Adviser: Wayne Gray.
502 $a Thesis (Ph.D.)--Clark University, 2015.
520 $a A country's nutritional status is generally reflected by child growth. The child growth statistics in Sri Lanka show that the country has a under nutrition problem. To add to this burden, the country has recently faced a continuous increase in food prices. Being a net food importer, Sri Lanka was affected by the rising global food prices and its price shocks in 2007/2008. Despite global prices receding after 2009, the domestic food prices continued to rise and hinder the country's effort to improve its nutrition status.
520 $a In order to implement policies that can effectively reduce under nutrition in Sri Lanka, it is important to understand how different people from different geographical areas and income segments respond by changing their demand for food and nutrients when faced with income and price changes. This information is especially vital to mitigate any negative effect that food price crises may have on food and nutrition intakes.
520 $a To achieve this objective, I use the Household Income and Expenditure Survey (HIES) 2009/2010 dataset for Sri Lanka and estimate price and income elasticities for food demand and nutrient demand for individuals from different socio-economic backgrounds and different sectors in the country. Two demand models are used: The Working-Leser (WL) demand model and the Quadratic Almost Ideal Demand System (QUAIDS) model. Using nutrient elasticities, policy simulations are performed to identify the most effective policy action to improve nutrition for the poor in Sri Lanka.
520 $a Next, the food and nutrition consumption patterns and price and income responsiveness are compared over a period of twenty years using HIES data for the years 1990/1991, 1995/1996, 2006/2007 and 2009/2010. I examine how the food statistics vary, focusing on changes between the years 2006/2007 and 2009/2010, which mark the period before and after the 2007 global food price crisis.
520 $a Finally, I test for spatial relationships in the demand for different food in Sri Lanka to examine whether there is interdependence of preferences for different food based on spatial proximity.
520 $a The results reveal the expected negative own price elasticities and positive income elasticities (Normal goods) for the demand of thirteen different food groups and eleven different nutrients. I find that the poor are more price and income responsive in their demand for different food and nutrients. The urban sector has comparatively higher income and price demand elasticities for food and the rural sector has higher income and price demand elasticities for nutrients.
520 $a Between the years 2006 and 2009, nominal and real prices increased, food ratios increased, deficiency rates increased and nutrient consumption reduced. The population that was affected the most was the poor. Comparison of price elasticities over the years reveal that during periods of high inflation (2006), households in Sri Lanka were less sensitive to price changes in food and during periods of low inflation (2009) they were more sensitive. This indicates that the 2007/2008 global food price crisis had an effect on the food and nutrient consumption in Sri Lanka.
520 $a The policy simulation exercise suggests that an income increase of 20% is more favorable in improving nutrition at a national level and provincial level. However, a simple cost comparison shows that providing multivitamins to improve nutrient deficiencies is more cost effective. A 20% income increase cannot adequately reduce deficiencies in calcium and riboflavin and a multi vitamin pill is not capable of reducing deficiencies in calories and macronutrients such as protein, fat, carbohydrates. Therefore, a combination of income increase and provision of multi-vitamin pills will be the most effective strategy in improving nutrition among the poor in Sri Lanka.
520 $a The spatial analysis of the demand for different food in Sri Lanka provides evidence of spatial dependence in the demand for rice, vegetables and meat. For rice and vegetables, the relationship is a positive one between the average of the neighboring D.S division's error terms for the demand for vegetables and rice and a given D.S division's demand for the same good. For meat, it is a positive relationship between the median expenditure share for meat in a given D.S division and the average median expenditure share for meat in the neighboring divisions. The spatial meat demand relationship provides evidence of household consumption being influenced by their neighbors as stated in the interdependence of preferences theory.
590 $a School code: 0048.
650 4 $a Economics. $3 517137
650 4 $a Agricultural economics. $3 3172150
650 4 $a Nutrition. $3 517777
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690 $a 0570
710 2 $a Clark University. $b Economics. $3 2097319
773 0 $t Dissertation Abstracts International $g 76-10A(E).
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791 $a Ph.D.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3705051