"Misspecified Learning or Rational Choice? Evidence from Financial Markets" with Freddie A. Papazyan and Svetlozar T. Rachev. Reject & Resubmit - Review of Asset Pricing Studies.
“Reinforcement Learning for Strategic Asset Allocation: Why the Objective Function Dominates the Agent Architecture.” Forthcoming. Journal of Financial Data Science.
“Household Reliance on Artificial Intelligence for Financial Advice: Evidence from the United States” with Ali Jaffri and Hassan A. Butt. Revise & Resubmit - Journal of Behavioral and Experimental Finance.
"Behavioral Probability Weighting and Portfolio Optimization under Semi-Heavy Tails" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. Revise & Resubmit - Financial Innovation.
"Equity-Imposed Tilts in Affine Term Structure Models: Evidence from Option-Implied Asymmetries" with Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. The Journal of Fixed Income. (2026).
"Option-Implied Probabilities and Bond Valuation" with Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. The Journal of Fixed Income 35 (3), 6-17. (2026).
"Demystifying FinBERT: How Transformer Models Turn Financial Text into Market Insights" with Ali Jaffri and Hassan A. Butt. The Journal of Portfolio Management 52 (2). (2025)
"Beyond the Traditional VIX: A Novel Approach to Identifying Uncertainty Shocks in Financial Markets" with Abootaleb Shirvani, Svetlozar T. Rachev, and Frank J. Fabozzi. Journal of Risk and Financial Management, 18, 11. (2025).
"Optimizing Portfolios with Pakistan-Exposed Exchange-Traded Funds: Risk and Performance Insight" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. Journal of Risk and Financial Management, 18, 158. (2025).
"Winners vs. Losers: Momentum-based Strategies with Intertemporal Choice for ESG Portfolios" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi.
Abstract: We introduce a state-dependent momentum framework that integrates ESG regime switching with tail-risk–aware reward–risk metrics. Solving a finite-horizon Bellman equation, we construct long–short portfolios that adapt to pro- and anti-ESG regimes using the Stable Tail Adjusted Return and Rachev ratios. Applied to Russell 3000 equities, Dow Jones 30 stocks, and cryptocurrencies, we show that ESG-loser portfolios significantly outperform ESG winners during pro-ESG periods, revealing short-term mispricings driven by sentiment. This effect is strongest under a two-week formation/holding rule and is robust across tail-sensitive metrics. Our results underscore the value of dynamic, regime-aware momentum strategies under ESG constraints.
"Unknown Rational Expectations: Evidence from NFL Betting Markets" with James Kemper, Alejandro Abarca, and Freddie Papazyan. [Download this Paper]
"Pre-Trade Uncertainty and the Subordinated Uncertainty Index" with Ali Jaffri, Svetlozar Rachev, and Frank Fabozzi. [Download this Paper]
"Social Media as an Investment Information Channel: Evidence from U.S. Household Survey Data" with Ali Jaffri and Hassan A. Butt. [Download this Paper]
"Causality beyond Linear Predictability" [Download this Paper]
"Do Banks Build Societies? Evidence from Brazilian and U.S. Mutual Intermediaries" with Ali Jaffri and Frank J. Fabozzi. [Download this Paper]
"Pricing the Yield Curve with Global FX Stress: AFNS Evidence on Maturity Loadings and Inversions" with Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"Greed and Fear in Investors: Dislocation via Financial Market Views" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"Advancing Portfolio Optimization: Adaptive Minimum-Variance Portfolio and Adaptive Minimum-Risk Rate Frameworks" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"Multivariate Affine GARCH with Heavy Tails: A Unified Framework for Portfolio Optimization and Option Valuation" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"Forecasting Flash Crashes with Subordinated Lévy Processes" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"A Unified Financial Index for Geopolitical and Environmental Risks: Construction, Risk Management, and Derivative Applications" with Abootaleb Shirvani, Ali Jaffri, Svetlozar T. Rachev, and Frank J. Fabozzi. [Download this Paper]
"The Ticketmaster and Live Nation Saga: A Robust Merger Analysis" with Noah Liptack, Ali Jaffri, and Michael D. Noel. [Download this Paper]
"Asset Pricing under A Uniform Mixed-Interest Market Model" with Rui Wang, Svetlozar Rachev, and Frank Fabozzi.
"Misspecified Learning and Nonlinear Dynamics in Credit Markets: Theory and Evidence" with Victoria Z. Hang and Freddie Papazyan.
"Crowding in Financial Markets: Measurement, Asset Pricing, and Systemic Risk " with Abootaleb Shirvani, Ali Jaffri, Ayush Jha, W. Brent Lindquist, Svetlozar Rachev, Priscilla Ati-Tay, and William Lamptey. (Accepted - Springer Nature)
“Next-Generation Asset Pricing: Integrating Econometrics, Machine Learning, and AI” with Ali Jaffri and Svetlozar Rachev. (Accepted - World Scientific)
“Microstructure, Statistical Fluctuations, and Technical Signals in Rational Asset Pricing” with Ali Jaffri, W. Brent Lindquist, Svetlozar Rachev, Rexford Boakye, Dilmi C. W. Hettiachchi-Halpe-Kankanamalage, and Abigail Mensah. (Accepted - Taylor and Francis)
“Risk Analysis and Portfolio Management for AI Innovation ETFs” with Ali Muqadas Jaffri, Abootaleb Shirvani, Ting-Jung Lee, Thidini Mahanama, and Svetlozar T. Rachev. (Accepted - De Gruyter Brill)
“Behavioral Asset Pricing, Heavy-Tailed Risk, and Postmodern Investment Theory under Probability-Weighting Transformations” with Ali Jaffri, Abootaleb Shirvani, Svetlozar T. Rachev, Farzana Afroz, and Nicholas Appiah. (Accepted - Cambridge Scholars Publishing)
“Bridging Behavioral and Rational Finance: A New Class of Probability Weighting Functions” with Ali Jaffri, Abootaleb Shirvani, Svetlozar T. Rachev, Bhatiya Divelgama, and Isaac McCarty. (Accepted - MDPI)
“Behavioral Market Microstructure Factor Investing and Stochastic Discount Factor under Probability-Weighting Transformations” with Ali Jaffri, Abootaleb Shirvani, Svetlozar Rachev, Farzana Afroz, and Nicholas Appiah. (Accepted - Cambridge Scholars Publishing)