Using quadratic Engel curves with measurement errors, we identify the proportion of urban households in Ethiopia for whom food exhibits the characteristics of a luxury commodity. The threshold welfare level beyond which food ceases to be a luxury is found to lie between the 35th and 47th...

Much of the existing literature on the use of informal credit arrangements such as ROSCAs (Rotating and Credit Saving Associations) theorises the use of such institutions as arising from market failures in the development of formal saving and credit mechanisms. As economic development proceeds,...