نتایج جستجو برای: food price change

تعداد نتایج: 917935  

Journal: :EMBO reports 2011
Joyce Tait Guy Barker

Food security has become an issue of serious concern because global food supplies are threatened by systemic collapse. increasing demand for food caused by global population growth, changing lifestyles in developing countries, climate change and competition with bio fuels are combining to create a ‘perfect storm’ (godfray et al, 2010). Moreover, short-term weather pattern changes leading to flo...

Journal: :Journal of health economics 2008
Christiane Schroeter Jayson Lusk Wallace Tyner

We develop a theoretical model to identify conditions under which price and income changes are most likely to change weight. Although it is intuitive that raising the price of high-calorie food will decrease consumption of such goods; it is not clear that such an outcome will actually reduce weight. Our empirical analysis demonstrates a case where a tax on food away from home, a food intake cat...

Food security and economic welfare strongly depend on agricultural production, the loss of this production can be a serious challenge for food security and economic welfare. Agricultural production is also influenced by environmental and climatic factors so that the variations of climatic parameters can trigger extensive fluctuations in agricultural production. This study classifies climate cha...

2017
Hualin Xie Bohao Wang

In recent years, food security, especially supply, has been an important issue in China’s agricultural production. The stability of grain prices is related to the stability and development of the grain market. Based on agricultural production data from 1970 to 2015, this paper explores the influence of agricultural product price fluctuation on grain production by using the cobweb theory and vec...

Journal: :اقتصاد و توسعه کشاورزی 0
محسن جمالی پور احمد رضا شاهپوری محمد قربانی

introduction: land use in the overall concept is said to be the type of using land in the current situation which contains all users in different sectors of agriculture, natural resources and the industry. protecting land use is as follows: “prevent the change of application of certain lands by their owners, if their change has negative natural, economic, political, cultural, or scientific effe...

Journal: :تحقیقات نظام سلامت 0
حسن هاشمی مرکز تحقیقات محیط زیست دانشگاه علوم پزشکی اصفهان، اصفهان، ایران صبا سپهوند کارشناسی ارشد جغرافیای پزشکی، دانشکده ادبیات و علوم انسانی،دانشگاه اصفهان،اصفهان کبری هاشمی کارشناس مهندسی منابع طبیعی- شیلات– گرایش تکثیر و پرورش آبزیان، دانشکده علوم دریایی، دانشگاه دریانوردی و علوم دریایی چابهار

climate change around the world is now a reality that has adverse effects on the environment and human health. there is little information about the effect of climate change on food systems, especially seafood from the farm to the table. the aim of this study was to review the fundamental effects of climate change on seafood safety and human health. climate change is expected to increase chemic...

Due to its inherent role in ensuring food security and as one of the productive sectors of the economy, the agricultural sector has a priority in receiving preferential currency. Having a preferred currency has caused the price of this commodity in the market to be multi-valued. On the other hand, the allocation of billions of dollars at a price lower than the free market price of foreign excha...

Journal: :Advances in health economics and health services research 2007
Lisa M Powell M Christopher Auld Frank J Chaloupka Patrick M O'Malley Lloyd D Johnston

We examine the extent to which food prices and restaurant outlet density are associated with adolescent fruit and vegetable consumption, body mass index (BMI), and the probability of overweight. We use repeated cross-sections of individual-level data on adolescents from the Monitoring the Future Surveys from 1997 to 2003 combined with fast food and fruit and vegetable prices obtained from the A...

2013
Johan Swinnen

Trade and food security discussions have changed significantly in recent years, reflecting a more general change in perspective on “the right price of food” (Swinnen 2011). Until 2007 the dominant view was that low prices for agricultural products were causing poverty and food insecurity among poor households in developing countries. Trade policy discussions emphasized the importance of reducin...

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