An Empirical Assessment of the Accounting Semi-Identity Problem's Pervasiveness and Severity

This paper investigates a fundamental methodological flaw in the investment-cash flow sensitivity model of Fazzari, Hubbard, and Petersen (1988). The model comes from a full accounting identity in which some components are missing, generating what I term an Accounting Semi-Identity, that mechanicall

October 29, 2025 · 2 min · thequant.space

Entropy-Guided Multiplicative Updates: KL Projections for Multi-Factor Target Exposures

We introduce Entropy-Guided Multiplicative Updates (EGMU), a convex optimization framework for constructing multi-factor target-exposure portfolios by minimizing Kullback-Leibler divergence from a benchmark under linear factor constraints. We establish feasibility and uniqueness of strictly positive

October 28, 2025 · 2 min · thequant.space

Explainable Federated Learning for U.S. State-Level Financial Distress Modeling

We present the first application of federated learning (FL) to the U.S. National Financial Capability Study, introducing an interpretable framework for predicting consumer financial distress across all 50 states and the District of Columbia without centralizing sensitive data. Our cross-silo FL setu

October 28, 2025 · 2 min · thequant.space

Extended HJB Equation for Mean-Variance Stopping Problem: Vanishing Regularization Method

This paper studies the time-inconsistent MV optimal stopping problem via a game-theoretic approach to find equilibrium strategies. To overcome the mathematical intractability of direct equilibrium analysis, we propose a vanishing regularization method: first, we introduce an entropy-based regulariza

October 28, 2025 · 2 min · thequant.space

The Evolution of Probabilistic Price Forecasting Techniques: A Review of the Day-Ahead, Intra-Day, and Balancing Markets

Electricity price forecasting has become a critical tool for decision-making in energy markets, particularly as the increasing penetration of renewable energy introduces greater volatility and uncertainty. Historically, research in this field has been dominated by point forecasting methods, which pr

October 28, 2025 · 2 min · thequant.space

The Omniscient, yet Lazy, Investor

We formalize the paradox of an omniscient yet lazy investor - a perfectly informed agent who trades infrequently due to execution or computational frictions. Starting from a deterministic geometric construction, we derive a closed-form expected profit function linking trading frequency, execution co

October 28, 2025 · 2 min · thequant.space

Adaptive Multilevel Splitting: First Application to Rare-Event Derivative Pricing

This work investigates the computational burden of pricing binary options in rare event regimes and introduces an adaptation of the adaptive multilevel splitting (AMS) method for financial derivatives. Standard Monte Carlo becomes inefficient for deep out-of-the-money binaries due to discontinuous p

October 27, 2025 · 2 min · thequant.space

An uncertainty-aware physics-informed neural network solution for the Black-Scholes equation: a novel framework for option pricing

We present an uncertainty-aware, physics-informed neural network (PINN) for option pricing that solves the Black–Scholes (BS) partial differential equation (PDE) as a mesh-free, global surrogate over $(S,t)$. The model embeds the BS operator and boundary/terminal conditions in a residual-based objec

October 27, 2025 · 2 min · thequant.space

Building Trust in Illiquid Markets: an AI-Powered Replication of Private Equity Funds

In response to growing demand for resilient and transparent financial instruments, we introduce a novel framework for replicating private equity (PE) performance using liquid, AI-enhanced strategies. Despite historically delivering robust returns, private equity’s inherent illiquidity and lack of tr

October 27, 2025 · 2 min · thequant.space

Financial markets as a Le Bonian crowd during boom-and-bust episodes: A complementary theoretical framework in behavioural finance

This article proposes a complementary theoretical framework in behavioural finance by interpreting financial markets during boom-and-bust episodes as a Le Bonian crowd. While behavioural finance has documented the limits of individual rationality through biases and heuristics, these contributions re

October 27, 2025 · 2 min · thequant.space

PEARL: Private Equity Accessibility Reimagined with Liquidity

In this work, we introduce PEARL (Private Equity Accessibility Reimagined with Liquidity), an AI-powered framework designed to replicate and decode private equity funds using liquid, cost-effective assets. Relying on previous research methods such as Erik Stafford’s single stock selection (Stafford)

October 27, 2025 · 2 min · thequant.space

Revisiting the Structure of Trend Premia: When Diversification Hides Redundancy

Recent work has emphasized the diversification benefits of combining trend signals across multiple horizons, with the medium-term window-typically six months to one year-long viewed as the “sweet spot” of trend-following. This paper revisits this conventional view by reallocating exposure dynamicall

October 27, 2025 · 2 min · thequant.space

Deviations from Tradition: Stylized Facts in the Era of DeFi

Decentralized Exchanges (DEXs) are now a significant component of the financial world where billions of dollars are traded daily. Differently from traditional markets, which are typically based on Limit Order Books, DEXs typically work as Automated Market Makers, and, since the implementation of Uni

October 26, 2025 · 2 min · thequant.space

Inverse Behavioral Optimization of QALY-Based Incentive Systems Quantifying the System Impact of Adaptive Health Programs

This study introduces an inverse behavioral optimization framework that integrates QALY-based health outcomes, ROI-driven incentives, and adaptive behavioral learning to quantify how policy design shapes national healthcare performance. Building on the FOSSIL (Flexible Optimization via Sample-Sensit

October 26, 2025 · 2 min · thequant.space

TABL-ABM: A Hybrid Framework for Synthetic LOB Generation

The recent application of deep learning models to financial trading has heightened the need for high fidelity financial time series data. This synthetic data can be used to supplement historical data to train large trading models. The state-of-the-art models for the generative application often rely

October 26, 2025 · 2 min · thequant.space

The Breadth Premium: Measuring the Firm-level Impact of CEO Career Breadth

Prevailing career and education systems continue to reward early specialization and deep expertise within narrow domains. While such depth promotes efficiency, it may also limit adaptability in complex and rapidly changing environments. Building on research showing that variability in training input

October 26, 2025 · 2 min · thequant.space

Causal and Predictive Modeling of Short-Horizon Market Risk and Systematic Alpha Generation Using Hybrid Machine Learning Ensembles

We present a systematic trading framework that forecasts short-horizon market risk, identifies its underlying drivers, and generates alpha using a hybrid machine learning ensemble built to trade on the resulting signal. The framework integrates neural networks with tree-based voting models to predic

October 25, 2025 · 2 min · thequant.space

General Equilibrium Amplification and Crisis Vulnerability: Cross-Crisis Evidence from Global Banks

This paper develops a continuous framework for analyzing financial contagion that incorporates both geographic proximity and interbank network linkages. The framework characterizes stress propagation through a master equation whose solution admits a Feynman-Kac representation as expected cumulative

October 25, 2025 · 3 min · thequant.space

Right Place, Right Time: Market Simulation-based RL for Execution Optimisation

Execution algorithms are vital to modern trading, they enable market participants to execute large orders while minimising market impact and transaction costs. As these algorithms grow more sophisticated, optimising them becomes increasingly challenging. In this work, we present a reinforcement lear

October 25, 2025 · 2 min · thequant.space

Understanding Carbon Trade Dynamics: A European Union Emissions Trading System Perspective

The European Union Emissions Trading System (EU ETS), the worlds largest cap-and-trade carbon market, is central to EU climate policy. This study analyzes its efficiency, price behavior, and market structure from 2010 to 2020. Using an AR-GARCH framework, we find pronounced price clustering and shor

October 25, 2025 · 2 min · thequant.space