Munich Personal RePEc Archive

Forecasting UK consumer price index using Box-Jenkins ARIMA models

NYONI, THABANI (2019): Forecasting UK consumer price index using Box-Jenkins ARIMA models.

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Abstract

This research uses annual time series data on CPI in the UK from 1960 to 2017, to model and forecast CPI using the Box – Jenkins ARIMA technique. Diagnostic tests indicate that the K series is I (2). The study presents the ARIMA (1, 2, 1) model for predicting CPI in the UK. The diagnostic tests further indicate that the presented optimal model is actually stable and acceptable. The results of the study apparently show that CPI in the UK is likely to continue on a sharp upwards trajectory in the next decade. The study basically encourages policy makers to make use of tight monetary and fiscal policy measures in order to control inflation in the UK.

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