Research Discussion Paper – 1974 Equation (A.22)

WE ( 1 TY ) SL = PN . DN + PT . DT MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaae4vaiaabw eadaqadaqaaiaaigdacqGHsislcaqGubGaaeywaaGaayjkaiaawMca aiaabofacaqGmbGaeyypa0Jaaeiuaiaab6eacaGGUaGaaeiraiaab6 eacqGHRaWkcaqGqbGaaeivaiaac6cacaqGebGaaeivaaaa@47F1@