Effective sterilized foreign exchange intervention? Evidence from a rule-based policy

Citation data:

Elsevier, Journal of International Economics, ISSN: 0022-1996, Vol: 113, Issue: C, Page: 118-138

Publication Year:
2018
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DOI:
10.1016/j.jinteco.2018.04; 10.1016/j.jinteco.2018.04.003
RePec URLs:
https://ideas.repec.org/a/eee/inecon/v113y2018icp118-138.html
Author(s):
Kuersteiner, Guido M.; Phillips, David C.; Villamizar-Villegas, Mauricio
Publisher(s):
Elsevier BV
Tags:
Economics, Econometrics and Finance; Rule-based intervention; Portfolio balance; Foreign exchange policy; Regression discontinuity; Non-linear impulse response;
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article description
This paper investigates the effectiveness of sterilized foreign exchange interventions by exploiting a discontinuous policy rule used by the Central Bank of Colombia. We use a unique data set that comprises tick by tick intervention and order book data, daily capital in- and outflows, and balance sheet information of financial institutions. We apply regression discontinuity methods to identify the surprise component of rule-based interventions and use this variation to measure how they affect exchange rates and capital flows. Our findings indicate that interventions had significant effects on the exchange rate, albeit short-lived (2–3 weeks). Moreover, capital controls amplify the effect of intervention, though some effect remains even in the presence of free capital flows. A methodological contribution of the paper is to extend regression discontinuity designs to a time-series environment and to show how these techniques can be used to identify and estimate local non-linear impulse response functions. A clearly defined policy rule and high frequency data are crucial in exploiting local variation around the policy cutoff.