In this paper, we seek to ascertain whether the recently developed ordered fuzzy number (OFN) representation of a limit order book (LOB) by Marszałek and Burczyński (2024) may serve as a measure of stock liquidity. In particular, we aim to test whether this measure contains similar or distinct...

This policy paper examines the effects of the introduction of the MiFID II / MiFIR framework on the transparency regime for sovereign bonds. The main purpose of the framework is to provide markets with real-time information and lower market asymmetries, thereby increasing liquidity in the...

Using 33 years of intraday Treasury data, we provide the first high-frequency evidence on auction-day price pressure: yields rise in the hours before auction and reverse afterward. This pressure strengthens when dealers face tighter risk-bearing constraints and weakens when investor demand is...

This paper examines whether the SEC's mandate for central clearing of U.S. Treasury repo transactions could enable all-to-all trading and support the development of a standardized term repo market. By mitigating counterparty risk through central clearing, cash lenders may become more willing to...

We test whether forecast bias affects individual investors' stock trading by combining bias measures from laboratory experiments with administrative trade data. Forecast bias is positively associated with past excess returns of purchased stocks: Compared to contrarians, extrapolators purchase...

Multi-unit common value auctions in which bidders submit demand functions are used for a variety of purposes, including selling government debt (Treasury auctions) and allocating liquidity (repo auctions). Typically, either a discriminatory or a uniform-price format is used. In this paper, we...

This paper investigates the relationship among transaction taxes, high-frequency trading (HFT), and market quality. We use the agent-based modeling (ABM) approach to dynamically assess the impact of transaction taxes on market quality with and without high-frequency trading. Preliminary tests...

This is the 15th progress report on the harmonisation of European securities settlement published by the Eurosystem's Advisory Group on Market Infrastructures for Securities and Collateral (AMI-SeCo). With the aim of further integrating European financial markets and in line with its mandate,...

This paper examines tail connectedness between various exchange-traded funds (ETFs) focused on artificial intelligence (AI) and some traditional assets such as bonds, equities, Bitcoin, and oil, as well as the VIX uncertainty index, using US daily data over the period from 1 January 2023 to 23...

In this paper a new state model is introduced, an adaptative state model in a binary temporal representation (ASMBRT) as well as its application in constructing an algorithmic trading system. The presented model uses the binary temporal representation, which allows for a precise analysis of...

This paper shows that, in a setup 'a la Kyle (1985), correlated retail trading opens up new profit opportunities for professional investors at the expense of retail investors. Additionally, it demonstrates that market quality can benefit through higher market liquidity and higher price...

Pairs trading has been a successful tool for traders since its inception in the 1980s and has evolved significantly with the introduction of algorithmic, machine, and AI trading. This evolution has compli­cated the implementation of this strategy that traditionally benefits institutional or...

The Eurosystem's Advisory Group on Market Infrastructures for Securities and Collateral (AMI-SeCo) has set the goal of harmonising the processing of corporate actions (CA), based on the ISO 20022 standard. In December 2017 the AMI-SeCo identified a series of harmonisation needs, which served as...