Udaya S Mishra International Institute for Population Sciences (IIPS), Mumbai   Professor, Centre for Development Studies Prasanth Nagar Ulloor Medical College PO Trivandrum, Kerala 695011 India   umishra@iipsindia.ac.in   www.cds.edu   Biographical Sketch: A Statistician/Demographer pursuing development research during last twenty years. My interest lies in measurement issues and issues of aggregation. Teaching quantitative methods to students of applied economics, my interest focus has widened from one of modelling and statistical application to the multidisciplinarity and multi-dimensionality of development research.   Primary Research Focus: human development   JEL Areas: D3 : Distribution: General I3 : Welfare and Poverty: General