many food products are perishable by nature and require protection from spoilage during their preparation, storage and distribution to give them desired shelf-life. because food products are now often sold in areas of the world far distant from their production sites, the need for extended safe shelf-life for these products has also expanded. currently, there is a strong debate about the safety...

Iran has experienced high food prices in recent years. This paper examines the welfare impacts of rising major food groups' prices on Iranian urban households using Quadratic Almost Ideal Demand System (QUAIDS) approach. The elasticity coefficients derived from QUAIDS are used to estimate Compensated Variations (CV).The study uses Iranian Household Expenditure and Income Survey (HEIS) raw data,...

There is a substantial controversy in the economic literature over the magnitude of the expenditure elasticity for food grain in China that is caused, to a large extent, by whether time-series or cross-section data are used in the analysis. A set of reasonable elasticities for a complete demand system is estimated by using a panel of county level data in Guangdong Province for the last ten year...

A methodology for estimating a demand system from household survey data is developed and applied to the 1987-88 Nationwide Food Consumption Survey data. The empirical results are sets of estimated demand elasticities for households segmented with different income levels. In addition, we apply these demand elasticities to estimate the implied nutrient elasticities for low-income households. The ...

Abstract The important contribution international trade has in meeting the food security challenges that will arise in the first half of the twenty-first century is explained. The dual effect of rising population and increasing incomes among the world’s poorest consumers on food demand is outlined. Slowing rates of increase in global agricultural productivity will add to the difficulties in inc...

There is clearly a significant increase in awareness of the risks from food-borne diseases among consumers in western countries in the past decade. The concern about the quality and safety of food appears to be driven by increased affluence, new scientific discoveries, by more sophisticated measurements and analyses, by new information about linkages between diet and health, by new food technol...