Maganga, Assa Mulagha; Phiri, M. Alexander R.; Mapemba, … - Agricultural and Applied Economics Association - AAEA - 2014
In contrast to the myriad of empirical work on food demand in other countries, very few studies have considered zero expenditures on some food groups. Those which have attempted have been based on techniques which result in endogeneity and inefficient estimates which in turn may misinform policy...