RDP 8601: Classical Models and Unobserved Aggregates Equation (16)

t−1 σ t 2 = φ t−1 σ t−1 2 φ ′ + σ υ 2 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSbaaSqaai aabshacqGHsislcaaIXaaabeaakiabeo8aZnaaDaaaleaacaqG0baa baGaaGOmaaaakiabg2da9iabeA8aQnaaBaaaleaacaqG0bGaeyOeI0 IaaGymaaqabaGccqaHdpWCdaqhaaWcbaGaaeiDaiabgkHiTiaaigda aeaacaaIYaaaaOGafqOXdOMbauaacqGHRaWkcqaHdpWCdaqhaaWcba GaeqyXduhabaGaaGOmaaaaaaa@4E83@