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The Impact of Pre-announced Day-to-day Interventions on the Colombian Exchange Rate

Juan Echavarría (), Luis Melo-Velandia (), Santiago Téllez () and Mauricio Villamizar-Villegas ()

Borradores de Economia from Banco de la Republica de Colombia

Abstract: The adoption of a managed regime assumes that interventions are relatively successful. However, while some authors consider that foreign exchange interventions are ineffective, arguing that domestic and foreign assets are close substitutes, others advocate their use and maintain that their effects can even last for months. There is also a lack of consensus on the related question of how to intervene. Are dirty interventions more powerful than pre-announced ones? This paper compares the effects of day-to-day interventions with discretionary interventions by combining a Tobit-GARCH reaction function with an asymmetric power PGARCH(1,1) impact function. Our results show that the impact of pre-announced and transparent US$ 20 million daily interventions, adopted by Colombia in 2008–20–12, has been much larger than the impact of dirty interventions adopted in 2004–2007.We find that the impact of a change in daily interventions (from US$ 20 million to US$ 40 million) raises the exchange rate by approximately Col $2, implying that actual interventions of US$ 1,000 million increase the exchange rate in one day by 5.50%. We also find that capital controls have a positive effect.

Keywords: Central bank intervention; reaction function; Tobit-GARCH; foreign exchange intervention mechanisms; capital controls; dirty interventions. (search for similar items in EconPapers)
JEL-codes: E52 E58 F31 (search for similar items in EconPapers)
Pages: 36
Date: 2013-05
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Related works:
Journal Article: The impact of pre-announced day-to-day interventions on the Colombian exchange rate (2018) Downloads
Working Paper: The impact of pre-announced day-to-day interventions on the Colombian exchange rate (2013) Downloads
Working Paper: The Impact of Pre-announced Day-to-day Interventions on the Colombian Exchange Rate (2013) Downloads
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