consumed. This can bias empirical analyses because unit values are not exogenous market prices; they reflect household food … quality choices within each food category. This article develops a framework for assessing the resulting bias in income and … in rural China tend to consume higher-quality food as income increases, with a greater sensitivity to income for basic …

food demand in relation to food prices over time using data from the British National Food Survey (NFS) covering the period … system (QUAIDS) model controlling also for total expenditure on food, region of residence, household size, age of head of … household, whether women are working, number of time in which the household buys ready food, household type and income quartiles …