Stock market dynamics, leveraged network-based financial accelerator and monetary policy

Authored by Luca Riccetti, Alberto Russo, Mauro Gallegati

Date Published: 2016

DOI: 10.1016/j.iref.2016.01.012

Sponsors: European Union

Platforms: No platforms listed

Model Documentation: Other Narrative Mathematical description

Model Code URLs: Model code not found

Abstract

We build an agent-based model with a threefold financial accelerator: (i) leverage negative shocks on firms' output make banks less willing to loan funds and firms less willing to invest, and hence a credit reduction follows further reducing the output; (ii) stock market due to lower profit, firms' capitalization on the stock market decreases, thus the distance-to-default diminishes and it reinforces the leverage accelerator; (iii) network credit network may propagate the initial shock. We find that stock market volatility may damage the real economy if the stock market is too relevant. Our findings have relevant implications for monetary policy. (C) 2016 Elsevier Inc. All rights reserved.
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