نتایج جستجو برای: food price change

تعداد نتایج: 917935  

2014
James J. Elser Timothy J. Elser Stephen R. Carpenter William A. Brock

Recent human population increase has been enabled by a massive expansion of global agricultural production. A key component of this "Green Revolution" has been application of inorganic fertilizers to produce and maintain high crop yields. However, the long-term sustainability of these practices is unclear given the eutrophying effects of fertilizer runoff as well as the reliance of fertilizer p...

2005
Christiane Schroeter Jayson Lusk

Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. Abstract Despite the significant rise in obesity in the U.S., economic research on obesity is still in its infancy. This paper employs a microeconomic approach to investigate the effects of price and income changes on weight in an effort to ...

Journal: :Asia Pacific journal of clinical nutrition 2009
Hyun-Kyung Moon

Food and health security in North East Asia including South Korea, North Korea, China and Japan was compared. Because this region contains countries with many complex problems, it is worthwhile to study the current situation. With about 24% of the world's population, all North East Asian countries supply between 2400 and 3000 Kcal of energy. Regarding health status, two extreme problems exist. ...

2012
Yaneer Bar-Yam

Recent droughts in the midwestern United States threaten to cause global catastrophe driven by a speculator amplified food price bubble. Here we show the effect of speculators on food prices using a validated quantitative model that accurately describes historical food prices. During the last six years, high and fluctuating food prices have lead to widespread hunger and social unrest. While the...

2013
Scott A Lear Danijela Gasevic Nadine Schuurman

BACKGROUND Research on the built food environment and weight status has mostly focused on the presence/absence of food outlets while ignoring their internal features or where residents actually shop. We explored associations of distance travelled to supermarkets and supermarket characteristics with shoppers' body mass index (BMI). METHODS Shoppers (n=555) of five supermarkets situated in diff...

Estimating electricity demand elasticity in different sectors has been an essential research topic. Considering the fact that pricing electricity in various countries does not follow the same rules, many econometrics methods have been developed to estimate this crucial parameter. Electricity demand elasticity is defined as the percent change in electricity consumption in response to one percent...

Journal: :Journal of epidemiology and community health 2011
Tony Blakely Cliona Ni Mhurchu Yannan Jiang Leonie Matoe Mafi Funaki-Tahifote Helen C Eyles Rachel H Foster Sarah McKenzie Anthony Rodgers

BACKGROUND Reducing health inequalities requires interventions that work as well, if not better, among disadvantaged populations. The aim of this study was to determine if the effects of price discounts and tailored nutrition education on supermarket food purchases (percentage energy from saturated fat and healthy foods purchased) vary by ethnicity, household income and education. METHOD A 2×...

2017
David M. Kern Amy H. Auchnicloss Mark F. Stehr Ana V. Diez Roux Latetia V. Moore Genevieve P. Kanter Lucy F. Robinson

It is known that the price of food influences the purchasing and consumption decisions of individuals; however, little work has examined if the price of healthier food relative to unhealthier food in an individual's neighborhood is associated with overall dietary quality while using data from multiple regions in the United States. Cross-sectional person-level data came from The Multi-Ethnic Stu...

عبدالاحد شادپرور, , مرادپاشا اسکندری نسب, , احمد قربانی, , سید ابوالحسن میر مهدوی چابک, ,

Using a deterministic model for dairy herd according to milk pricing system in Iran, the economic weights of milk production, fat percentage, protein percentage and herd life with minimized cost were identified, while restricted total input and total costs were variable in animal unit. By data simulation and the data obtained from 3 different dairy herds in Iran, the sensitivity of economic val...

2013
Ashok Gulati

India did not experience any food price spikes during 2007–08 when global food prices erupted. It was partly due to India’s ban on exports of wheat and common rice India resorted to. But the fiscal stimulus that the government of India provided in 2009 in the wake of G8 countries’ and other major economies’ call to avert economic recession, coupled with one of the worst droughts India experienc...

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