When does food stop being a luxury? : evidence from quadratic Engel curves with measurement error /
Girma, Sourafel.
Kedir, Abbi Mamo.
University of Nottingham.Centre for Research in Economic Development and International Trade.
Nottingham : University of Nottingham, Centre for Research in Economic Development and International Trade,
2002.
Includes bibliographical references
Consumption (Economics)
Food consumption
Household surveys