3 papers
quant-ph2025
On the Classical Shadow Nonparametric Bootstrap
Eric Ghysels, Jack Morgan
Classical shadows are an efficient method for constructing an approximate classical description of a quantum state using very few measurements. In the paper we propose to enhance c…
econ.EM2025
Nowcasting and aggregation: Why small Euro area countries matter
Andrii Babii, Luca Barbaglia, Eric Ghysels +1
The paper studies the nowcasting of Euro area Gross Domestic Product (GDP) growth using mixed data sampling machine learning panel data regressions with both standard macro release…
quant-ph2025
On Quantum and Quantum-Inspired Maximum Likelihood Estimation and Filtering of Stochastic Volatility Models
Eric Ghysels, Jack Morgan, Hamed Mohammadbagherpoor
Stochastic volatility models are the backbone of financial engineering. We study both continuous time diffusions as well as discrete time models. We propose two novel approaches to…