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  • 标题:Forecasting with ARMA models
  • 本地全文:下载
  • 作者:Abdulaleem Isiaka ; Abdulqudus Isiaka ; Abdulqadir Isiaka
  • 期刊名称:International Journal of Research in Business and Social Science
  • 印刷版ISSN:2147-4478
  • 出版年度:2021
  • 卷号:10
  • 期号:1
  • 页码:205-234
  • DOI:10.20525/ijrbs.v10i1.1005
  • 语种:English
  • 出版社:Society for the Study of Business & Finance
  • 摘要:This paper employs the R software in identifying the most suitable ARMA model for forecasting the growth rate of the exchange rate between the US dollar and a unit of the British pound. The data is systematically split into two distinct periods identified as the in-sample period and the out of sample period. The best model selected for the in-sample period is used to make forecasts for the out of sample period. Both traditional and rolling window forecasting methods are employed. This research uses the MSE, MAE, MAPE and correct sign prediction criterion to compare the forecasting performance of the rolling window forecasting method and the traditional forecasting method. The results obtained suggest that the traditional forecasting method performs better judging by MSE, MAE and MAPE. In other words, the traditional forecasting method is more suitable for predicting the magnitude (i.e., size) by which the US /UK exchange rate changes over time. However, the results also suggest that the rolling window forecasting method performs better based on the correct sign prediction criterion. In other words, the rolling window forecasting method is more appropriate for predicting the changes in the sign of the US /UK exchange rate.
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