Over-the-counter versus double auction in asset markets with near-zero-intelligence traders

Over-the-counter versus double auction in asset markets with near-zero-intelligence traders
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资产市场中的场外交易与双重拍卖,交易者的智力接近于零

DOI:
10.1016/j.jedc.2022.104510
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发表时间:
2022-08
影响因子:
1.9
通讯作者:
Yaosong Zhan
Yaosong Zhan
中科院分区:
经济学3区
文献类型:
--
作者:
Dong Lu;Yaosong Zhan

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场外交易(OTC)市场在许多资产类别的交易中占主导地位。本文在实验室市场环境下,通过构建一个基于代理人的模型,研究了场外交易机构在价格发现和泡沫形成中的作用。我们比较了(i)没有经销商的OTC市场;(ii)有经销商的OTC市场;(iii)标准的双重拍卖(DA)市场。在DA实验数据估计的相同参数下,我们发现用场外交易机构取代DA并不能减轻价格泡沫。在使用OTC实验数据重新校准模型后,我们发现OTC市场的锚定效应比DA市场低,抛售压力更大。模拟结果表明,场外交易市场的价格泡沫小于DA市场,这与实验数据相一致。这一结果突出了交易机构和代理人的行为偏差之间的相互作用在泡沫形成中发挥的重要作用。
Over-the-counter (OTC) markets dominate trading in many asset classes. We examine the role of OTC trading institutions on price discovery and bubble formation by constructing an agent-based model with artificial adaptive traders placed in a laboratory market environment. We compare (i) OTC markets without dealers; (ii) OTC markets with dealers; and (iii) standard double auction (DA) markets. Under the same parameters estimated from the DA experimental data, we find that replacing DA with OTC trading institutions does not mitigate price bubbles. After recalibrating the model using the OTC experimental data, we find that anchoring effects are lower and selling pressures are higher in OTC markets than DA markets. The simulated results show smaller price bubbles in OTC markets than in DA markets, which is consistent with the experimental data. This result highlights the important role played by the interaction between trading institutions and the agent’s behavioral biases in bubble formation.
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