Abstract
We study the impact of the network topology on various market parameters (volatility, liquidity and efficiency) when three populations or artificial trades interact (Noise, Informed and Social Traders). We show, using an agent-based set of simulations that choosing a Regular, a Erdös-Rényi or a scale free network and locating on each vertex one Noise, Informed or Social Trader, substantially modifies the dynamics of the market. The overall level of volatility, the liquidity and the resulting efficiency are impacted by this initial choice in various ways which also depends upon the proportion of Informed vs. Noise Traders.
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Notes
- 1.
Notice that if \(g_t\), which stands for the approximation of \(G_t\) follows a Normal distribution, it only allows agents to determine a framing for the possible price. As such, these latter must choose a “target” between the upper and the lower boundaries. This is the reason why they rely on a Uniform PDF for doing so.
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Brandouy, O., Mathieu, P. (2018). Network Topology and the Behaviour of Socially-Embedded Financial Markets. In: Bajo, J., et al. Highlights of Practical Applications of Agents, Multi-Agent Systems, and Complexity: The PAAMS Collection. PAAMS 2018. Communications in Computer and Information Science, vol 887. Springer, Cham. https://doi.org/10.1007/978-3-319-94779-2_9
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