hence deflating by a food and clothing price index rather than the aggregate cpi provides a better indication of the welfare change for those workers that is inequality between unskilled wageearners and the much wealthier owners of capital human or physical within developing countries would decrease with full trade reform anderson valenzuela and van der mensbrugghe go a step further by explicitly assessing reform impacts on poverty even though the linkage model has only one single representative household per country they do so using the elasticities approach which involves taking the estimated impact on real household income and applying an estimated income to poverty elasticity to estimate the impacts on the poverty headcount index for each country