Micro-level transmission of monetary policy shocks: The trading book channel

Thiago Silva (), Solange Guerra, Michel Alexandre and Benjamin Tabak

Journal of Economic Behavior & Organization, 2020, vol. 179, issue C, 279-298

Abstract: We open the black box of the monetary policy transmission mechanism with a granular model that considers the balance-sheet composition and network relationships of each economic agent. Though there are several well-documented channels through which monetary policy operates, we focus on the overlooked trading book channel, which arises because of adjustments in the accounting value of trading book exposures on banks’ balance sheets that have to be marked to market when interest rates change. Variations in banks’ net worth due these adjustments are used as input to a network model that incorporates the financial and corporate sectors. The framework permits us to determine the effects of interest rate changes on every bank and firm in the economy and any second-round (contagion) effects in the short run. We apply the model to a comprehensive database of Brazilian banks and firms from 2015 to 2020. We find that interest rate shocks affect more strongly financial stability in periods of monetary policy tightening. We also find notable asymmetric effects of positive and negative interest rate shocks in the Brazilian economy, with positive interest rate shocks affecting more financial stability. Finally, our results also suggest a non-linear relationship between interest rate changes and financial stability, reinforcing the need to mitigate monetary policy shocks through interest rate smoothing and adequate communication and transparency to society.

Keywords: Trading book channel; Monetary policy; Networks; Financial stability; Systemic risk; Contagion (search for similar items in EconPapers)
JEL-codes: C63 G01 G21 G28 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jeborg:v:179:y:2020:i:c:p:279-298

DOI: 10.1016/j.jebo.2020.09.013

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