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The Effect of Central Bank Communication on the Capital Buffer of Banks: Evidence from an Emerging Economy

Rodolfo Nicolay (), Claudio de Moraes () and Bruno Tiberto ()

Econometric Research in Finance, 2018, vol. 3, issue 1, 1-26

Abstract: The global financial crisis has revealed that the coordination between monetary policy and financial stability should be part of economic policy. This study examines the effects of monetary policy on the capital buffer (financial stability proxy) in the Brazilian economy and, in particular, how communication about both monetary policy and normative macroprudential policy affect the capital buffer maintained by banks. The study presents three main results: i) banks react strongly to monetary policy changes by increasing (reducing) the capital buffer in response to an increase (decrease) in the interest rate; ii) banks increase (decrease) the capital buffer when the central bank monetary policy communication signals an increase (decrease) in interest rates; and iii) banks use the capital buffer to accommodate the new measures of regulatory capital: the announcement of restrictive (liberalizing) capital measures reduces (increases) the capital buffer.

Keywords: central bank communication; capital buffer; monetary policy; financial stability (search for similar items in EconPapers)
JEL-codes: E52 E58 G18 (search for similar items in EconPapers)
Date: 2018
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DOI: 10.33119/ERFIN.2018.3.1.1

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