Modelling Exchange Rate Volatility Under Volatile Conjuncture : Dynamic Time Series Analysis For The Case Of Turkey
Oynak Ekonomik Koşullar Altında Döviz Kuru Oynaklığının Modellenmesi: Türkiye İçin Dinamik Zaman Serisi Analizi

Author : ASLI GÜLER
Number of pages : 39-47

Abstract

Changes in exchange rate affect the economy as a whole through both financial and real sector by affecting both domestic and overseas investment and consumption decisions. Considering the weight of the foreign exchange market over the economy, volatility in the exchange rate affects the economy as a whole. In this context, analyzing the structure of exchange rate volatility is important for predicting risks and taking precautions. On the other hand efforts to keep the exchange rate fluctuations under control enters the responsibility of the monetary authority. In relation to this, monetary policy makers have to take into account the possible effects of policy steps on exchange rate when creating the monetary policy. Monetary authorities have to be more careful in this regard, particularly during periods of the high global and domestic volatility that weaken the monetary authority's ability to control exchange rate. In this study, exchange rate volatility is analyzed using symmetric and asymmetric autoregressive conditional heteroscedasdicity models such as GARCH and TARCH. According to the results obtained, the shocks in the exchange rate show a resilient and permanent structure. At the same time negative and positive shocks have been found to have an asymmetrical effect on volatility. It has been found that the fluctuations in the overnight interest rates increase the exchange rate volatility

Keywords

Exchange rate volatility, Overnight Interest Rate, Monetary Policy, ARCH Models

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