Browsing by Subject "adaptiivinen oppiminen"

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  • Honkapohja, Seppo; Mitra, Kaushik (2015)
    Bank of Finland Research Discussion Papers 9/2015
    Published in Manchester School, Volume 83, Issue Supplement S2, pages 27–59, September 2015
    We examine global dynamics under learning in New Keynesian models with price level targeting that is subject to the zero lower bound. The role of forward guidance is analyzed under transparency about the policy rule. Properties of transparent and non-transparent regimes are compared to each other and to the corresponding cases of inflation targeting. Robustness properties for different regimes are examined in terms of the domain of attraction of the targeted steady state and volatility of inflation, output and interest rate. We analyze the effect of higher inflation targets and large expectational shocks for the performance of these policy regimes.
  • Evans, George W.; Honkapohja, Seppo; Mitra, Kaushik (2016)
    Bank of Finland Research Discussion Papers 25/2016
    Stagnation as the new norm and fiscal policy are examined in a New Keynesian model with adaptive learning determining expectations. We impose inflation and consumption lower bounds, which can be relevant when agents are pessimistic. The inflation target is locally stable under learning. Pessimistic initial expectations may sink the economy into steady-state stagnation with deflation. The deflation rate can be near zero for discount factors near one or if credit frictions are present. Following a severe pessimistic expectations shock a large temporary fiscal stimulus is needed to avoid or emerge from stagnation. A modest stimulus is sufficient if implemented early.
  • Honkapohja, Seppo (2015)
    Bank of Finland Research Discussion Papers 18/2015
    Published in Empirica, Issue 2, 1 May (2016): 235-256
    ​Many central banks have lowered their interest rates close to zero in response to the crisis since 2008. In standard monetary models the zero lower bound (ZLB) constraint implies the existence of a second steady state in addition to the inflation-targeting steady state. Large scale asset purchases (APP) have been used as a tool for easing of monetary policy in the ZLB regime. I provide a theoretical discussion of these issues using a stylized general equilibrium model in a global nonlinear setting. I also review briefly the empirical literature about effects of APP’s.