RDP 8601: Classical Models and Unobserved Aggregates Equation (13)

t z t = t1 z t + κ t ( x t t1 x t ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSbaaSqaai aabshaaeqaaOGaaeOEamaaBaaaleaacaqG0baabeaakiabg2da9maa BaaaleaacaqG0bGaeyOeI0IaaGymaaqabaGccaqG6bWaaSbaaSqaai aabshaaeqaaOGaey4kaSIaaOOUdmaaBaaaleaacaGI0baabeaakiaa cIcacGaKaQiEamacqc4gaaWcbGaKakacqcOI0baabKaKacGccqGHsi sldaWgaaWcbaGaaeiDaiabgkHiTiaaigdaaeqaaOGaaOiEamaaBaaa leaacaGI0baabeaakiaacMcaaaa@51BA@