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Price and income elasticities are estimated for ten major food groups across low-, medium‐, and high‐income classes, using the 2004 China urban household survey data for Jiangsu province. Demand parameters are estimated using an incomplete demand system (the LinQuad model). Results of this study show that for the majority of the studied food categories, the demand for the low‐income group is found to be more income and own‐price elastic; while the demand for the high‐income group is found to be less income and own‐price elastic. Therefore, the null hypothesis of constant price and income elasticities of demand is rejected in this study. [EconLit citations: D120, R220, Q180]. (C) 2010 Wiley Periodicals, Inc.

A complete demand system is estimated separately for urban and rural residents using a two-stage almost ideal demand system-quadratic almost ideal demand system model and pooled provincial and time-series data from 2000 to 2012. The estimated demand elasticities with respect to income and demographic variables are then used to predict the changes in the structure of food demand in China for the year 2030. Results of this study suggest that, as per capita incomes grow further while both urbanization and population aging continue their upward trends, the shares of expenditures on foods away from home are expected to rise while the shares of spending on foods at home would decline, and that at-home food budget shares of grains are expected to continue decreasing whereas athome food budget shares of foods with animal origins and fruits would be on the rise. Thus, food security in China has been transformed into feed grain security. K E Y W O R D S demographic change, food demand in China, income growth, urbanization J E L C O D E S C33, D12, Q18

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The first difference version of the restricted source-differentiated almost ideal demand system is used to estimate South Korean meat demand. The results of this study indicate that the United States has the most to gain from an increase in the size of the South Korean imported meat market in terms of its beef exports, while South Korea has the most to gain from this expansion in the pork market. Moreover, the results indicate that the United States has a competitive advantage to Australia in the South Korean beef market. Results of this study have implications for U.S. meat exports in this ever-changing policy environment.