RDP 2005-04: Monetary Policy, Asset-Price Bubbles and the Zero Lower Bound Equation (3)

a t = { a t 1 + γ t , with probability   1 p t 0 , with probability   p t . MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyyamaaBa aaleaacaWG0baabeaakiabg2da9maaceaabaqbaeaabiWaaaqaaiaa dggadaWgaaWcbaGaamiDaiabgkHiTiaaigdaaeqaaOGaey4kaSIaeq 4SdC2aaSbaaSqaaiaadshaaeqaaaGcbaGaaiilaaqaaiaabEhacaqG PbGaaeiDaiaabIgacaaMc8UaaeiCaiaabkhacaqGVbGaaeOyaiaabg gacaqGIbGaaeyAaiaabYgacaqGPbGaaeiDaiaabMhacaaIXaGaeyOe I0IaamiCamaaBaaaleaacaWG0baabeaaaOqaaiaaicdaaeaacaGGSa aabaGaae4DaiaabMgacaqG0bGaaeiAaiaaykW7caqGWbGaaeOCaiaa b+gacaqGIbGaaeyyaiaabkgacaqGPbGaaeiBaiaabMgacaqG0bGaae yEaiaaykW7caWGWbWaaSbaaSqaaiaadshaaeqaaOGaaiOlaaaaaiaa wUhaaaaa@6B23@