Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering

Fluctuations in food commodity prices have a significant impact on a country’s food security, purchasing power, and economic growth. Therefore, good governance is needed to maintain price stability, one of which is by developing a forecasting model as an early warning system. This study aims to deve...

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Main Authors: Sumertajaya, I Made, Rohaeti, Embay, Fitrianto, Anwar, P., Windhiarso Ponco Adi
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2024
Online Access:http://journalarticle.ukm.my/24656/
http://journalarticle.ukm.my/24656/1/SS%2020.pdf
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author Sumertajaya, I Made
Rohaeti, Embay
Fitrianto, Anwar
P., Windhiarso Ponco Adi
author_facet Sumertajaya, I Made
Rohaeti, Embay
Fitrianto, Anwar
P., Windhiarso Ponco Adi
author_sort Sumertajaya, I Made
building UKM Institutional Repository
collection Online Access
description Fluctuations in food commodity prices have a significant impact on a country’s food security, purchasing power, and economic growth. Therefore, good governance is needed to maintain price stability, one of which is by developing a forecasting model as an early warning system. This study aims to develop a food commodity price forecasting model using Multivariate Time Series Clustering (MTSClust) and Vector Autoregressive Imputation Method with Moving Average (VAR-IMMA) approaches for food commodities in the Indonesian region. The data used in this study consisted of daily prices of 13 commodities from 103 districts/cities in Indonesia. Data analysis was conducted in several stages, namely VAR modeling, K-means Euclidean clustering, profiling, and forecasting. The results show that 103 sample districts/cities across Indonesia can be grouped into four types of regions based on food price movement patterns. There are homogeneous islands such as Maluku where the sample district/city are in the same cluster, but there are also heterogeneous islands such as Kalimantan and Papua with their four clusters. The forecasting evaluation results show good accuracy with Root Mean Square Error (RMSE) scores below IDR 1000.00 in most cases, which is equivalent to Mean Absolute Percentage Error (MAPE) scores below 10%. However, two commodities, namely cayenne pepper and red chili, need more attention due to relatively high RMSE and MAPE scores, although not exceeding 30% MAPE in most cases. These results show that the MTSClust and VAR-IMMA approaches are accurate in forecasting food commodity prices, although further research is needed for the two chili commodities.
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spelling oai:generic.eprints.org:246562025-01-06T06:51:48Z http://journalarticle.ukm.my/24656/ Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering Sumertajaya, I Made Rohaeti, Embay Fitrianto, Anwar P., Windhiarso Ponco Adi Fluctuations in food commodity prices have a significant impact on a country’s food security, purchasing power, and economic growth. Therefore, good governance is needed to maintain price stability, one of which is by developing a forecasting model as an early warning system. This study aims to develop a food commodity price forecasting model using Multivariate Time Series Clustering (MTSClust) and Vector Autoregressive Imputation Method with Moving Average (VAR-IMMA) approaches for food commodities in the Indonesian region. The data used in this study consisted of daily prices of 13 commodities from 103 districts/cities in Indonesia. Data analysis was conducted in several stages, namely VAR modeling, K-means Euclidean clustering, profiling, and forecasting. The results show that 103 sample districts/cities across Indonesia can be grouped into four types of regions based on food price movement patterns. There are homogeneous islands such as Maluku where the sample district/city are in the same cluster, but there are also heterogeneous islands such as Kalimantan and Papua with their four clusters. The forecasting evaluation results show good accuracy with Root Mean Square Error (RMSE) scores below IDR 1000.00 in most cases, which is equivalent to Mean Absolute Percentage Error (MAPE) scores below 10%. However, two commodities, namely cayenne pepper and red chili, need more attention due to relatively high RMSE and MAPE scores, although not exceeding 30% MAPE in most cases. These results show that the MTSClust and VAR-IMMA approaches are accurate in forecasting food commodity prices, although further research is needed for the two chili commodities. Penerbit Universiti Kebangsaan Malaysia 2024 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/24656/1/SS%2020.pdf Sumertajaya, I Made and Rohaeti, Embay and Fitrianto, Anwar and P., Windhiarso Ponco Adi (2024) Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering. Sains Malaysiana, 53 (11). pp. 3779-3789. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol53num11_2024/contentsVol53num11_2024.html
spellingShingle Sumertajaya, I Made
Rohaeti, Embay
Fitrianto, Anwar
P., Windhiarso Ponco Adi
Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title_full Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title_fullStr Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title_full_unstemmed Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title_short Development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
title_sort development of food commodity price forecasting model as an early warning system with a multivariate time series clustering
url http://journalarticle.ukm.my/24656/
http://journalarticle.ukm.my/24656/
http://journalarticle.ukm.my/24656/1/SS%2020.pdf