Keywords: GM(2,1)
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Journal Articles
Grey Systems: Theory and Application (2016) 6 (2): 126–142.
Published: 01 August 2016
.... R.M. Kapila Tharanga Rathnayaka can be contacted at: 2609814759@qq.com © Emerald Group Publishing Limited 2016 Portfolio selection ARIMA GM (1,1) GM(2,1) NGBM Forecasting and portfolio selection under the high volatility represents one of the most appreciable as well...

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