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...

We develop a deep reinforcement learning (RL) framework for an optimal market-making (MM) trading problem, specifically focusing on price processes with semi-Markov and Hawkes Jump-Diffusion dynamics. We begin by discussing the basics of RL and the deep RL framework used; we deployed the...

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,...

There are various factors that influence the trading behavior of individual investors in the stock market. This study, based on data from 405 individual investors, is the first to investigate the relationship between sleep quality and investors' trading behavior in the stock market. Sleep...

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...

This study investigates how the rise of commission-free FinTech platforms and the introduction of fractional trading (FT) have altered trading behavior and order book dynamics in the NASDAQ equity market. Leveraging high-frequency ITCH data from highly capitalized stocks-AAPL, AMZN, GOOG, and...

This paper establishes an insider trading model under market supervision, which includes four types of trading entities: an insider trader, n external traders, noise traders, and market makers. The insider trader voluntarily discloses information to the external traders during the trading...

In diffusion models, few suitably chosen financial securities allow to complete the market. As a consequence, the efficient allocations of static Arrow-Debreu equilibria can be attained in Radner equilibria by dynamic trading. We show that this celebrated result generically fails if there is...

This is the 13th edition of the TARGET2-Securities Annual Report, which now covers a sixth full year since the end of the T2S migration period. The first edition was published in 2011, a pivotal year for the finalisation of the legal and technical documentation of T2S and for the CSDs'...

This is the 13th edition of the TARGET2-Securities Annual Report, which now covers a sixth full year since the end of the T2S migration period. The first edition was published in 2011, a pivotal year for the finalisation of the legal and technical documentation of T2S and for the CSDs'...

AMI-SeCo considers the harmonisation of post-trade processes, including collateral management, to be critically important in the pursuit of financial market integration in Europe. In the area of securities settlement harmonisation, T2S has contributed significantly to the integration of...

Recent macroeconomic shifts, such as elevated inflation and rapidly rising interest rates, coupled with global growth deceleration, have put real estate markets under particular stress. We explore the current exposures in EU securities markets and the asset management sector to the rising risks...

Using microdata on stock-level lending positions from German mutual funds, we show that active funds use the equity lending market to obtain information about short sale demand. Funds reduce long positions in response to these demand signals, which allows fund managers to front-run public...

This paper examines the potential profit of bull flag trading rules in the Shanghai Stock Exchange Composite Index (SSE) using a template matching technique based on price pattern recognition. This paper fills a gap in the literature by applying a template matching technique for the recognition...