00362nam a2200109Ia 4500008004100000082000700041100001400048245008100062260004700143300000600190500005600196250527b        |||||||| |||| 00| 0 eng d  aSF  aGhosh, A.  aInput output analysis with substantially independent groups of industriesb/  aNew Haven:bThe Econometric Society,c1960  a   a"Reprint from Econometrica, Vol.28, No.3, Jan 1960"