scholarly journals FX Intervention to Stabilize or Manipulate the Exchange Rate? Inference from Profitability

2020 ◽  
Vol 20 (90) ◽  
Author(s):  
Damiano Sandri

We analyze the profitability of FX swaps used by the central bank of Brazil to shed light on the rationale for FX intervention. We find that swaps are profitable in expectation, suggesting that FX intervention is used to stabilize the exchange rate in the face of temporary excessive movements rather than to manipulate it away from fundamental values. In line with this interpretation, we find that the scale of FX intervention responds to the degree of exchange rate misalignment relative to UIP conditions. We also document that intervention is more aggressive when there is less uncertainty about the medium-term level of the exchange rate and when the exchange rate is overvalued rather than undervalued.

Author(s):  
Juan R. Castro

The document conducts an empirical investigation on the volatility of the Chilean exchange rate regime, using a model of Objective Zones. Through the use of the ARCH model, the document tests the volatility of the exchange rate in the presence of different levels of international reserves and other macroeconomic shocks. The results show that domestic credit, domestic debt and external debt have the greatest impact on the volatility of the variables studied, especially when compared with other fundamental variables. The variance of the exchange rate is heterosedastic but it is not persistent, which implies that the exchange rate is stable, probably when it oscillates between two bands. The volatility of the exchange rate fluctuates to a greater extent in the face of changes in internal and external debt, than with the other variables used.


Author(s):  
Sebastián Fanelli ◽  
Ludwig Straub

Abstract We study a real small open economy with two key ingredients (1) partial segmentation of home and foreign bond markets and (2) a pecuniary externality that makes the real exchange rate excessively volatile in response to capital flows. Partial segmentation implies that, by intervening in the bond markets, the central bank can affect the exchange rate and the spread between home- and foreign-bond yields. Such interventions allow the central bank to address the pecuniary externality, but they are also costly, as foreigners make carry trade profits. We analytically characterize the optimal intervention policy that solves this trade-off: (1) the optimal policy leans against the wind, stabilizing the exchange rate; (2) it involves smooth spreads but allows exchange rates to jump; (3) it partly relies on “forward guidance,” with non-zero interventions even after the shock has subsided; (4) it requires credibility, in that central banks do not intervene without commitment. Finally, we shed light on the global consequences of widespread interventions, using a multi-country extension of our model. We find that, left to themselves, countries over-accumulate reserves, reducing welfare and leading to inefficiently low world interest rates.


ORDO ◽  
2014 ◽  
Vol 65 (1) ◽  
Author(s):  
Ansgar Belke

ZusammenfassungDie EZB sollte der Versuchung widerstehen, die Deflationsgefahr in der Eurozone durch zusätzliche Varianten unkonventioneller Geldpolitik (z.B. „Quantitative Easing“) zu bekämpfen. Was in den USA oder in Großbritannien geklappt haben mag, wird in der Eurozone nicht funktionieren. Es besteht gar die Gefahr einer Deflationsspirale, wie dieser Beitrag zeigt. Eingebettet werden die Argumente in die aktuelle Debatte um den „zu starken“ Euro.


2021 ◽  
Vol 8 (4) ◽  
pp. 31
Author(s):  
KHATTAB Ahmed ◽  
SALMI Yahya

The main objective of this paper is to study the sources of asymmetry in the volatility of the bilateral exchange rates of the Moroccan dirham (MAD), against the EUR and the USD using the asymmetric econometric models of the ARCH-GARCH family. An empirical analysis was conducted on daily central bank data from March 2003 to March 2021, with a sample size of 4575 observations. Central bank intervention in the foreign exchange (interbank) market was found to affect the asymmetry in the volatility of the bilateral EUR/MAD and USD/MAD exchange rates. Specifically, sales of foreign exchange reserves by the monetary authority cause a fall in the exchange rate, which means that the market response to shocks is asymmetric. Finally, the selection criterion (AIC) allowed us to conclude that the asymmetric model AR(1)-TGARCH(1,1) is adequate for modeling the volatility of the exchange rate of the Moroccan dirham.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Masimba Aspinas Mutakaya ◽  
Eriyoti Chikodza ◽  
Edward T. Chiyaka

This paper considers an exchange rate problem in Lévy markets, where the Central Bank has to intervene. We assume that, in the absence of control, the exchange rate evolves according to Brownian motion with a jump component. The Central Bank is allowed to intervene in order to keep the exchange rate as close as possible to a prespecified target value. The interventions by the Central Bank are associated with costs. We present the situation as an impulse control problem, where the objective of the bank is to minimize the intervention costs. In particular, the paper extends the model by Huang, 2009, to incorporate a jump component. We formulate and prove an optimal verification theorem for the impulse control. We then propose an impulse control and construct a value function and then verify that they solve the quasivariational inequalities. Our results suggest that if the expected number of jumps is high the Central Bank will intervene more frequently and with large intervention amounts hence the intervention costs will be high.


Author(s):  
MERYEM ERRAITEB

The purpose of this study is evaluating the effectiveness of monetary policy in Morocco. The results suggest that the monetary authorities must get out of the narrowness of logic monetarist by adopting a new approach which explicitly privileges the targeting of inflation as the ultimate goal, while referring to a multitude of indicators likely to guide the Central Bank in the conduct of its monetary policy as the exchange rate and interest rate next to the M3 aggregate growth rule. Thus, monetary authorities should out of the narrow sense monetarist by adopting a new approach that focuses explicitly targeting inflation as the ultimate goal, while referring to a multitude of indicators to guide the central bank in the conduct of monetary policy as exchange rate and Interest rate ET and this, alongside the growth rule M3.  


2021 ◽  
Vol 17 (41) ◽  
pp. 58
Author(s):  
Charles Munene Gachoki ◽  
Susan Okeri ◽  
Julius Korir

The exchange rate is an important variable in international trade because a country's competitiveness is determined by the expectations on how trade reacts to its movements. To orient the economy outwards, Kenya has pursued various measures from the 1990s to the 2000s. Kenya also signed up for nonreciprocal trade with the European Union under the Cotonou agreement. Despite the export-oriented efforts, Kenya's trade has remained skewed towards imports and a widening trade deficit which seems to follow the weakening of the Kenya shilling. The main policy dilemma therefore, is how imports accelerated in an environment of unhindered European Union market access, hence the motivation of this study. The study adopted a dynamic modeling approach since previous and present values affect exchange rate and trade. The results show that the economic fundamentals drive the real exchange rate. In terms of misalignment, the exchange rate is overvalued to a maximum of 5.9 percent and undervalued up to 5.2 percent. The estimated misalignment hurts imports but has a positive, statistically insignificant effect on exports. The results of this study suggest that the monetary authority should ensure the exchange rate remains stable and within the 6 percent range while monitoring all the underlying determinants. Additionally, hedging instruments should be made available and affordable to traders.


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