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Monetary economy
The Impact of Nominal Foreign Exchange Rate Fluctuations and Business Cycles on Nonperforming Loans with an Emphasis on Regime Changes and Time-Scale

Soheil Roudari; Masoud Homayounifar; Mostafa Salimifar

Volume 25, Issue 85 , February 2021, , Pages 35-64

https://doi.org/10.22054/ijer.2020.45154.779

Abstract
  In this research, the role of nominal exchange rate volatility and business cycles on the banking nonperforming loans was investigated by using Markov-Switching model during 2005-2018 using seasonal data. Business cycles were extracted from GDP by using the Hodrick Prescott filter. Also, the wavelet ...  Read More

Forecasting Natural Gas Price Using a Hybrid Model of Neural Network and Wavelet

Teimour Mohammadi; Atefeh Taklif; Sahel Zamani

Volume 22, Issue 71 , July 2017, , Pages 1-26

https://doi.org/10.22054/ijer.2017.8277

Abstract
  In this article, we introduce a model for forecasting the daily gas prices by the use of wavelet transform and neural networks. In this hybrid model, the discrete Daubechies wavelet transform is applied to decompose the gas prices series into approximation series and details series (DS). The new series ...  Read More