Books by this author

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Ordered by a blend of empirical rigor (60%) and math complexity (40%).

PanelGP: A Probabilistic Factor Model for Asset-Return Panels

We develop PanelGP, a conditional factor model for large panels of stock returns in which firm characteristics determine the factor loadings and economic conditions determine the expected factors. Both relations are estimated nonparametrically with Gaussian-process priors. The kernel choice nests in

Holy Grail Math 8.5 Rigor 8 Code ·  November 2, 2026

Transfer Learning Across Fixed-Income Product Classes

We propose a framework for transfer learning of discount curves across different fixed-income product classes. Motivated by challenges in estimating discount curves from sparse or noisy data, we extend kernel ridge regression (KR) to a vector-valued setting, formulating a convex optimization problem

Lab Rats Math 8.5 Rigor 4 ·  May 12, 2025

Drift-invariant kernels for discount curve models

Kernel ridge regression estimates the discount curve as the minimizer of a pricing error plus a penalty given by the norm of a reproducing kernel Hilbert space. By the representer theorem, the estimate lies in a finite-dimensional affine space that depends only on the kernel and on the cash flow dat

Lab Rats Math 9 Rigor 2 ·  November 6, 2026

Discount Models

Discount is the difference between the face value of a bond and its present value. I propose an arbitrage-free dynamic framework for discount models, which provides an alternative to the Heath–Jarrow–Morton framework for forward rates. I derive general consistency conditions for factor models, and

Lab Rats Math 8 Rigor 2 ·  June 29, 2023

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