contract number AG-3198-B-10-0028. The opinions and conclusions expressed herein are solely those of the authors and should not be construed as representing the opinions or policies of the UKCPR or any agency of the Federal Government. Our paper examines the prevalence and determinants of children's transitions into and out of food insecurity since 2001. We use longitudinally linked data from t...

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...

Food security is emerging as an important aspect of community and social planning, reflected in part by a recent special issue on Community Food Systems of the Journal of Planning Education and Research (JPER). As noted by Campbell (2004), food systems involve many stakeholders with differing values across space and time. One particular element of this larger food security issue revolves around...

This study examined the effects of climate change on food expenditure in rural household of Iran. Food expenditure is investigated as a function of average income of rural households, retail food price index and food expenditure for rural households, agricultural sown area and climate change. Here, the Stata11 software is used and data are from 26 provinces of the country for 10 years. Precipit...

food security has a dynamic notion during the time and may be affected by various domestic and global factors.nevertheless, iranian policy makers consider food security as same as self-sufficiency in agricultural food products, particularly wheat production. however, self-sufficiency can contribute to food security only if it is in coincidences with comparative advantage and sustainable resourc...

this paper examines the effects of agricultural land productivity improvement on the economy of iran assuming that the domestic and international trade liberalizations will open up the opportunities to expand market access. a 25-sector computable general equi-librium model was developed to simulate the effects of this policy. the simulation results indicate that enhancing agricultural land prod...

Food security covers aspects at all spatial levels from local to global and from an interdisciplinary and systemic food systems perspective. This book aims to better understand environmental, nutritional, agricultural, demographic, socioeconomic, political, technological, and institutional drivers, costs, and outcomes of current and future food security. Interactions with contextual factors inc...