a widely used poverty indicator is the a day poor which refers to income or consumption poverty that is comparable across countries and can be used to analyse regional and gjobal poverty trends for calculating a day poor nationally representative household survey data are used to generate per capita consumption or income aggregates in constant ppp for each household in a country for a given year these aggregates are then weighted by the size of the household and the number of people each household represents from survey sample weights to generate a distribution of individual consumption or income for the country aparame trie specification of the underlying lorenz curve is then fitted for the distribution