Mathematical Development and Evaluation of Forecasting Models for Accuracy of Inflation in Developing Countries: A Case of Vietnam

Table 9

Evaluating models with RMP forecasting errors.

Models	ARIMA	GM(1,1)	VERHULST	DGM(1,1)	DGM(2,1)
MAPE	6.13%	12.30%	19.09%	12.00%	12.49%
MSE	0.033	0.074	0.576	0.072	0.166
RMSE	0.182	0.273	0.759	0.269	0.408
MAD	0.144	0.226	0.649	0.219	0.332
Evaluation	Excellent	Good	Poor	Good	Reasonable