00323nam a2200121 a 450000500170000002000140001708200170003110000170004824500360006526000430010130000210014463000360016520251203090809.0  a195615158  a330.155bSEN  aSen, Amartya  aChoice, welfare and measurement  aChennaibOxford University Pressc1982  a460p.c22cm.cPB  aChoice, welfare and measurement