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Non-Value-Added Tax to improve market fairness and quality

Iryna Veryzhenko (), Arthur Jonath () and Etienne Harb ()
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Iryna Veryzhenko: Conservatoire National des Arts et Métiers
Arthur Jonath: Profit and Entropy
Etienne Harb: ESSCA School of Management

Financial Innovation, 2022, vol. 8, issue 1, 1-30

Abstract: Abstract The promotion of both market fairness and efficiency has long been a goal of securities market regulators worldwide. Accelerated digital disruption and abusive trading behaviors, such as the GameStop mania, prompt regulatory changes. It is unclear how this “democratization” of trading power affects market fairness as economies cope with pandemic-driven shifts in basic systems. Excessive speculation and market manipulation undermine the quality of financial markets in the sense that they cause volatility and increase the pain of bubble and crash events. Thereby, they weaken public confidence in financial markets to fulfill their roles in proper capital allocation to irrigate the real economy and generate value for society. While previous studies have mostly focused on market efficiency, our study proposes a tool to improve market fairness, even under periods of stress. To encourage value generation and improve market quality, we advance a graduated Non-Value-Added Tax that we implement in an agent-based model that can realistically capture the properties of real-world financial markets. A profitable transaction is taxed at a higher rate if it does not enhance the efficiency measured by deviation from fundamentals. When an agent locks in profit not supported by fundamentals but driven by trend-following strategies, the generated profit is taxed at various rates under the Non-Value-Added Tax regime. Unlike existing financial transaction taxes, the non-value-added tax is levied on profit rather than on price or volume. We show that the proposed tax encourages profitable trades that add value to the market and discourages valueless profit-making. It significantly curtails volatility and prevents the occurrence of extreme market events, such as bubbles and crashes.

Keywords: Market fairness; Financial transaction tax; Non-Value-Added Tax; High-frequency trading; Bubbles and crashes; Efficiency (search for similar items in EconPapers)
JEL-codes: D84 D85 E47 G14 I31 (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1186/s40854-021-00327-0

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