RDP 2015-10: The Life of Australian Banknotes Equation (9)

E ( F t ) = n = 1 t S ( τ n ; α ) I n MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyramaabm aabaGaamOramaaBaaaleaacaWG0baabeaaaOGaayjkaiaawMcaaiab g2da9maaqahabaGaam4uamaabmaabaGaeqiXdq3aaSbaaSqaaiaad6 gaaeqaaOGaai4oaiabeg7aHbGaayjkaiaawMcaaiaadMeadaWgaaWc baGaamOBaaqabaaabaGaamOBaiabg2da9iaaigdaaeaacaWG0baani abggHiLdaaaa@4AC7@