Decoding OTC Government Bond Market Liquidity: An ABM Model for Market Dynamics

Fuente: arXiv
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Main Authors: Vidler, Alicia, Walsh, Toby
Format: Preprint
Published: 2024
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author Vidler, Alicia
Walsh, Toby
author_facet Vidler, Alicia
Walsh, Toby
contents The over-the-counter (OTC) government bond markets are characterised by their bilateral trading structures, which pose unique challenges to understanding and ensuring market stability and liquidity. In this paper, we develop a bespoke ABM that simulates market-maker interactions within a stylised government bond market. The model focuses on the dynamics of liquidity and stability in the secondary trading of government bonds, particularly in concentrated markets like those found in Australia and the UK. Through this simulation, we test key hypotheses around improving market stability, focusing on the effects of agent diversity, business costs, and client base size. We demonstrate that greater agent diversity enhances market liquidity and that reducing the costs of market-making can improve overall market stability. The model offers insights into computational finance by simulating trading without price transparency, highlighting how micro-structural elements can affect macro-level market outcomes. This research contributes to the evolving field of computational finance by employing computational intelligence techniques to better understand the fundamental mechanics of government bond markets, providing actionable insights for both academics and practitioners.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16331
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Decoding OTC Government Bond Market Liquidity: An ABM Model for Market Dynamics
Vidler, Alicia
Walsh, Toby
Trading and Market Microstructure
Artificial Intelligence
The over-the-counter (OTC) government bond markets are characterised by their bilateral trading structures, which pose unique challenges to understanding and ensuring market stability and liquidity. In this paper, we develop a bespoke ABM that simulates market-maker interactions within a stylised government bond market. The model focuses on the dynamics of liquidity and stability in the secondary trading of government bonds, particularly in concentrated markets like those found in Australia and the UK. Through this simulation, we test key hypotheses around improving market stability, focusing on the effects of agent diversity, business costs, and client base size. We demonstrate that greater agent diversity enhances market liquidity and that reducing the costs of market-making can improve overall market stability. The model offers insights into computational finance by simulating trading without price transparency, highlighting how micro-structural elements can affect macro-level market outcomes. This research contributes to the evolving field of computational finance by employing computational intelligence techniques to better understand the fundamental mechanics of government bond markets, providing actionable insights for both academics and practitioners.
title Decoding OTC Government Bond Market Liquidity: An ABM Model for Market Dynamics
topic Trading and Market Microstructure
Artificial Intelligence
url https://arxiv.org/abs/2501.16331