Policies for food are much more relevant to equity considerations than policies for most other commodities. Not only is food essential for survival, but the poor spend a higher proportion of their income on food than the rich. A change in the price of food has a proportionally greater impact on their real income and welfare. Food also is a source of income for a large proportion of the population in developing countries. Consequently, the focus here is primarily on agricultural pricing, which some claim is a major factor underlying current food problems in Africa.
Ghai, Dharam; Smith, Lawrence. 1987. Food Price Policy and Equity. In Accelerating food production in Sub-Saharan Africa. Chapter 22. Pp. 278-289. In Accelerating food production in Sub-Saharan Africa. Mellor, John W.; Delgado, Christopher L.; Blackie, Malcom J. (Eds.). Baltimore, MD: Published for the International Food Policy Research Institute (IFPRI) [by] Johns Hopkins University Press. http://ebrary.ifpri.org/cdm/ref/collection/p15738coll2/id/129430