It contains a core questionnaire, which collects household characteristics (location of residence, the sex, age, marital status, and education and employment of all household members, and receipt of social security or subsidised rice programme) and a consumption module questionnaire, which gathers households’ consumption information. Every three years a wider SUSENAS survey is undertaken to obtain additional information covering topics such as health, education and housing. The panel part of the survey is repeated on the same households, allowing the construction of a panel data set for certain periods (such as the period 2008-10, which has been extensively used in this study).