RDP 8601: Classical Models and Unobserved Aggregates Equation (15)

κ t = t−1 σ t 2 Γ ′ 1 { Γ 1t−1 σ t 2 Γ ′ 1 + Δ 1 Ω 0 Δ ′ 1 + Δ 2 Ω Δ ′ 2 } −1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqOUdS2aaS baaSqaaiaabshaaeqaaOGaeyypa0ZaaSbaaSqaaiaabshacqGHsisl caaIXaaabeaakiabeo8aZnaaDaaaleaacaqG0baabaGaaGOmaaaaki qbfo5ahzaafaWaaSbaaSqaaiaaigdaaeqaaOGaai4Eaiabfo5ahnaa BaaaleaacaaIXaGaaeiDaiabgkHiTiaaigdaaeqaaOGaeq4Wdm3aa0 baaSqaaiaabshaaeaacaaIYaaaaOGafu4KdCKbauaadaWgaaWcbaGa aGymaaqabaGccqGHRaWkcGaOaQiLdmaaBaaaleaacaaIXaaabeaaki abfM6axnaaBaaaleaacaaIWaaabeaakiqbfs5aezaafaWaaSbaaSqa aiaaigdaaeqaaOGaey4kaSIaeuiLdq0aaSbaaSqaaiaaikdaaeqaaO GaeuyQdCLafuiLdqKbauaadaWgaaWcbaGaaGOmaaqabaGccaGG9bWa aWbaaSqabeaacqGHsislcaaIXaaaaaaa@61CC@