A global analysis of liquidity effects, interest rate rules, and deflationary traps

The prevailing models of liquidity traps suggest that a deflationary trap is a stable steady state in a multiple equilibria model. These models implicitly assume that the central bank accelerates the process of disinflation by following a Taylor rule even though there is a long run positive relationship between the nominal interest rate and inflation rate. This paper presents a reduced-form model that integrates liquidity effects into the analysis of interest rate rules to generalize the previous results about uniqueness, determinacy, and dynamic property of the economy.