This share can be defined either as the share of output not consumed either by households or government, or as the share of output devoted to capital investment less the share represented by borrowing from foreigners.
Report of the Committee on Comprehensive Financial services for small businesses and low Income households, Nachiket Mor, RBI 2013. 5. Dr KC Chakrabarty RBI Banque de France Seminar on Customer Engagement College of Agricultural Banking Pune March 22, 2013. BIS central bankers’ speeches  11