We quantify the Monetary Policy Board minutes of the Bank of Korea (BOK) by using text mining. We propose a novel approach that uses a field-specific Korean dictionary and contiguous sequences of words (n-grams) to capture the subtlety of central bank communications. Our text-based indicator helps explain the current and future BOK monetary policy decisions when considering an augmented Taylor rule, suggesting that it contains additional information beyond the currently available macroeconomic variables. In explaining the current and future monetary policy decisions, our indicator remarkably outperforms English-based textual classifications, a media-based measure of economic policy uncertainty, and a data-based measure of macroeconomic uncertainty. Our empirical results also emphasize the importance of using a field-specific dictionary and the original Korean text.
|Number of pages||41|
|Journal||Korean Economic Review|
|Publication status||Published - 2019|
Bibliographical noteFunding Information:
Acknowledgments We thank the DARPA TransTac program for funding and the anonymous reviewers for their constructive suggestions.
© 2019, Korean Economic Association. All rights reserved.
All Science Journal Classification (ASJC) codes
- Economics, Econometrics and Finance(all)