Despite being identified as potentially identical, household size did not pass the distribution
comparison test. It differed consistently between the census and the survey in that small households are underrepresented in the survey. For instance, in Central rural the census mean for one-person households is 18.4 percent but the corresponding figure in the survey is 16.3 percent. As household size is crucial when deriving per capita welfare estimates, it was less of an option to drop it from the common set of variables. And fed by the suspicion that small households are underrepresented because of non-response and improper replacement (Hoogeveen, 2003)
we decided to reweigh the survey.