On the Quantitative Effects of Unconventional Monetry Policies in Small Open Economies
This paper quantitatively evaluates the effects of several unconventional monetary policies for small open economies. In particular, a New Keynesian model is extended to include a liquidity premium, deviations from uncovered interest rate parity, and a premium in the term structure of interest rates, allowing the central bank to choose, in addition to its policy rate, the size and composition of its balance sheet. The model is calibrated to the case of Chile. We find that policies affecting the liquidity channel can potentially have large effects, but these depend on expectations about the future policy rate. On the other hand, alternatives working through the term premium have smaller effects, but they are less dependent on the expected path of the reference rate. We also study the possibility of undoing the unconventional policy as a possible exit strategy, with results indicating that this alternative may induce a significant slowdown, particularly if it is anticipated. Finally, we also consider the alternative of driving down the policy rate to its lower bound and maintaining it there for a prolonged period. While this policy can also be greatly expansionary, particularly after contractionary shocks, credibility issues regarding the promise of keeping the rate low for some time can severely undermine these effects.
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