International Inflation Synchronization and Implications

This study analyzes global inflation synchronization and derives policy implications for the Korean economy. Unlike previous studies that assume a single global inflation factor, this study investigates if inflation in Korea can be explained further by other global inflation factors. Our principal c...

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Main Author: SORA CHON
Format: Article
Language:English
Published: Korea Development Institute 2020-05-01
Series:KDI Journal of Economic Policy
Subjects:
Online Access:https://doi.org/10.23895/kdijep.2020.42.2.57
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author SORA CHON
author_facet SORA CHON
author_sort SORA CHON
collection DOAJ
description This study analyzes global inflation synchronization and derives policy implications for the Korean economy. Unlike previous studies that assume a single global inflation factor, this study investigates if inflation in Korea can be explained further by other global inflation factors. Our principal component analysis provides three principal components for global inflation that are linked to the Korea inflation rate ― the first component is closely related to OECD inflation, and the second and third components reflect China’s inflation. This study empirically demonstrates via in-sample fitting and out-of-sample forecasting that the three principal components of global inflation play a significant role in explaining and predicting Korean inflation in the short-term, while their role is limited in the mid-term. Domestic macroeconomic variables are found to be more important for the mid-term movements of the Korean inflation rate. The empirical results here suggest that the Bank of Korea should focus more on domestic economic conditions than on global inflation when implementing monetary policy because global factors are likely to be already reflected in domestic macro-variables in the mid-term.
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spelling doaj.art-bc0ae61946a24d0f885775c749ece2552022-12-22T01:32:34ZengKorea Development InstituteKDI Journal of Economic Policy2586-29952586-41302020-05-01422578410.23895/kdijep.2020.42.2.57International Inflation Synchronization and ImplicationsSORA CHON0Associate Fellow, Korea Development InstituteThis study analyzes global inflation synchronization and derives policy implications for the Korean economy. Unlike previous studies that assume a single global inflation factor, this study investigates if inflation in Korea can be explained further by other global inflation factors. Our principal component analysis provides three principal components for global inflation that are linked to the Korea inflation rate ― the first component is closely related to OECD inflation, and the second and third components reflect China’s inflation. This study empirically demonstrates via in-sample fitting and out-of-sample forecasting that the three principal components of global inflation play a significant role in explaining and predicting Korean inflation in the short-term, while their role is limited in the mid-term. Domestic macroeconomic variables are found to be more important for the mid-term movements of the Korean inflation rate. The empirical results here suggest that the Bank of Korea should focus more on domestic economic conditions than on global inflation when implementing monetary policy because global factors are likely to be already reflected in domestic macro-variables in the mid-term.https://doi.org/10.23895/kdijep.2020.42.2.57inflation ratesmonetary policyforecastingprincipal component modellasso
spellingShingle SORA CHON
International Inflation Synchronization and Implications
KDI Journal of Economic Policy
inflation rates
monetary policy
forecasting
principal component model
lasso
title International Inflation Synchronization and Implications
title_full International Inflation Synchronization and Implications
title_fullStr International Inflation Synchronization and Implications
title_full_unstemmed International Inflation Synchronization and Implications
title_short International Inflation Synchronization and Implications
title_sort international inflation synchronization and implications
topic inflation rates
monetary policy
forecasting
principal component model
lasso
url https://doi.org/10.23895/kdijep.2020.42.2.57
work_keys_str_mv AT sorachon internationalinflationsynchronizationandimplications