Modeling Inflation and Money Supply using Spatial Vector Autoregressive Model with Calendar Variation: Restricted vs Non-restricted Coefficient

9th Annual Basic Science International Conference 2019

自然科学（总论）

Sumarminingsih, Eni^1^2 ; Setiawan^3 ; Suharsono, Agus^3 ; Ruchjana, Budi Nurani^4

Doctoral Program at Department of Statistics, Institut Teknologi Sepuluh Nopember, Indonesia^1

Department of Statistics, University of Brawijaya, Indonesia^2

Department of Statistics, Institut Teknologi Sepuluh Nopember, Indonesia^3

Department of Mathematics, University of Padjadjaran, Indonesia^4

关键词: Government IS;    Inflation rates;    Money supply;    Price stability;    Restricted coefficients;    Restricted models;    Space time;    Vector autoregressive model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/546/5/052075/pdf
DOI  :  10.1088/1757-899X/546/5/052075

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

One of the tasks of the government is to maintain price stability reflected in the stability of inflation through the regulation of the money supply. Therefore the government needs to know the forecast of the inflation rate and the money supply. In modeling inflation and the money supply simultaneously in Indonesia, three things need to be accommodated, namely the relationship between variables, the existence of space-time relationships and the effect of Eid al-Fitr. The spatial vector autoregressive model with calendars variation can accommodate these three things. The purpose of this study is to compare two types of spatial vector autoregressive models with calendar variations, namely restricted and non-restricted coefficient to model inflation and the money supply in Surabaya, Malang, Kediri, and Jember simultaneously. Results of this study indicate that the non-restricted spatial vector autoregressive model with calendar variation is better than the restricted one. This can be seen from the value of MSE of the non-restricted model that is smaller than the restricted model.