RDP 2005-05: Underlying Inflation: Concepts, Measurement and Performance Equation (4)

Δ π t = γ 20 + γ 21 ( π t 1 π t 1 ) + ε 2 t . MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeuiLdqKaeqiWda3aa0baaSqaaiaadshaaeaacqGHxiIkaaGccqGH9aqpcqaHZoWzdaWgaaWcbaGaaGOmaiaaicdaaeqaaOGaey4kaSIaeq4SdC2aaSbaaSqaaiaaikdacaaIXaaabeaakmaabmaabaGaeqiWda3aaSbaaSqaaiaadshacqGHsislcaaIXaaabeaakiabgkHiTiabec8aWnaaDaaaleaacaWG0bGaeyOeI0IaaGymaaqaaiabgEHiQaaaaOGaayjkaiaawMcaaiabgUcaRiabew7aLnaaBaaaleaacaaIYaGaamiDaaqabaGccaGGUaaaaa@5579@