A Text Mining Analysis of Central Bank Monetary Policy Communication in Nigeria

Babatunde Omotosho and Mohammed M. Tumala

MPRA Paper from University Library of Munich, Germany

Abstract: This paper employs text-mining techniques to analyse the communication strategy of the Central Bank of Nigeria (CBN) during the period 2004-2019. Since the policy communique released after each meeting of the CBN’s monetary policy committee (MPC) represents an important tool of central bank communication, we construct a corpus based on 87 policy communiques with a total of 123, 353 words. Having processed the textual data into a form suitable for analysis, we examined the readability, sentiments, and topics of the policy documents. While the CBN’s communication has increased substantially over the years, implying increased monetary policy transparency; the computed Coleman and Liau readability index shows that the word and sentence structures of the policy communiques have become more complex, thus reducing its readability. In terms of monetary policy sentiments, we find an average net score of -10.5 per cent, reflecting the level of policy uncertainties faced by the MPC over the sample period. In addition, our results indicate that the topics driving the linguistic contents of the communiques were influenced by the Bank’s policy objectives as well as the nature of shocks hitting the economy per period.

Keywords: Central bank communication; Text mining; Monetary policy (search for similar items in EconPapers)
JEL-codes: E02 E32 E52 E58 E61 (search for similar items in EconPapers)
Date: 2019
New Economics Papers: this item is included in nep-big, nep-cba, nep-mac and nep-mon
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Published in CBN Journal of Applied Statistics 2.10(2019): pp. 73-107

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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:98850

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