International spillovers of quantitative easing

摘要

This paper develops a two-country model with asset market segmentation to investigate the effects of quantitative easing implemented by the major central banks on a typical small open economy that follows independent monetary policy. The model is able to replicate the key empirical facts on emerging countries response to large scale asset purchases conducted abroad, including inflow of capital to local sovereign bond markets, an increase in international comovement of term premia, and change in the responsiveness of the exchange rate to interest rate differentials. According to our simulations, quantitative easing abroad boosts domestic demand in the small economy, but undermines its international competitiveness and depresses aggregate output, at least in the short run. This is in contrast to conventional monetary easing in the large economy, which has positive spillovers to output in other countries. We also find that limiting quantitative easing spillovers might require policies that affect directly international capital flows, like purchasing assets by the small economy's central bank. (C) 2020 Elsevier B.V. All rights reserved.