Interviews with Indian villagers have cast doubt on whether wealth is the best measure of poverty. Researchers from the University of Dundee and Cleveland State University found "significant" variations in self-reported poverty owing to caste, gender and other factors. "It is commonly said that if someone has less than two dollars a day then they are poor, but the person may not consider themselves to be so," said Deepak Gopinath, lecturer in town and regional planning at Dundee.
Source - Times Higher Education, 01 September 2011, http://www.timeshighereducation.co.uk/story.asp?storyCode=417269§ioncode=26