Modeling of exchange rates by multivariate adaptive regression splines and comparison with classical statistical methods

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2017

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Köksal, Ece

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Economic factors like inflation, interest rates and exchange rates are among the leading indicators of a country’s relative level of economic health. With the help of technological improvements and global requirements, trading volume and a wide range of commerce network, exchange rates play a vital role in economics and finance since a higher exchange rate may result in a lower trade balance of a country, whereas a lower rate may cause an increase. Inflation, interest rates, domestic money supply growth, a country’s balance of payments’ size and trend, a country’s economic growth, dependency on outside sources and central bank intervention, are the factors which affect an exchange rate. Since many dependent and independent factors affect exchange rates, it is difficult to predict them. In areas of application, data mining is frequently used for decision support, financial forecasting, marketing strategy, prediction, etc. The method of data mining and machine learning is applied to analyze and forecast the future behavior of such complex systems. Modeling and prediction of exchange rates are still a challenge, although mathematicians, economists and statisticians have worked to reach a model with a superior forecasting ability for many years. Therefore, in this study, we aim to generate mathematical models to forecast the monthly US Dollar (USD) / Turkish Lira (TRY) and Euro (EUR) / Turkish Lira (TRY) exchange rates via data mining tools. For this purpose, we apply a flexible model Multivariate Adaptive Regression Splines (MARS) and widely used models Linear Regression (LR) and Support Vector Regression (SVR). In this study, MARS, LR and SVR models applied on USD / TRY and EUR / TRY exchange rate data sets in the period of 01/01/2007 and 30/04/2015; then the results of these models are compared and found out that MARS method has superior forecasting ability over LR and SVR methods for USD / TRY and EUR / TRY exchange rates. The thesis ends with a conclusion and an outlook to future investigations.

Subject Keywords

Foreign exchange., Regression analysis ., Mathematical statistics., Foreign exchange rates., Foreign exchange market.

URI

http://etd.lib.metu.edu.tr/upload/12621053/index.pdf
https://hdl.handle.net/11511/26705

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Graduate School of Applied Mathematics, Thesis

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Citation Formats

E. Köksal, “Modeling of exchange rates by multivariate adaptive regression splines and comparison with classical statistical methods,” M.S. - Master of Science, Middle East Technical University, 2017.