activity
20132024
most citedNumerical analysis on quadratic hedging strategies for normal inverse Gaussian models

1 citations · 2 across the 9 of their papers we have counts for

collaborators

9 papers

q-fin.CP2024

Option pricing for Barndorff-Nielsen and Shephard model by supervised deep learning

Takuji Arai, Yuto Imai

This paper aims to develop a supervised deep-learning scheme to compute call option prices for the Barndorff-Nielsen and Shephard model with a non-martingale asset price process ha…

q-fin.CP2023

Monte Carlo simulation for Barndorff-Nielsen and Shephard model under change of measure

Takuji Arai, Yuto Imai

The Barndorff-Nielsen and Shephard model is a representative jump-type stochastic volatility model. Still, no method exists to compute option prices numerically for the non-marting…

q-fin.CP2018★ 1 cited

Numerical analysis on quadratic hedging strategies for normal inverse Gaussian models

Takuji Arai, Yuto Imai, Ryo Nakashima

The authors aim to develop numerical schemes of the two representative quadratic hedging strategies: locally risk minimizing and mean-variance hedging strategies, for models whose…

q-fin.MF2017

A closed-form representation of mean-variance hedging for additive processes via Malliavin calculus

Takuji Arai, Yuto Imai

We focus on mean-variance hedging problem for models whose asset price follows an exponential additive process. Some representations of mean-variance hedging strategies for jump ty…

q-fin.CP2016

On the difference between locally risk-minimizing and delta hedging strategies for exponential Lévy models

Takuji Arai, Yuto Imai

We discuss the difference between locally risk-minimizing and delta hedging strategies for exponential Lévy models, where delta hedging strategies in this paper are defined under t…

q-fin.CP2015

Numerical analysis on local risk-minimization forexponential Lévy models

Takuji Arai, Yuto Imai, Ryoichi Suzuki

We illustrate how to compute local risk minimization (LRM) of call options for exponential Lévy models. We have previously obtained a representation of LRM for call options; here w…

q-fin.MF2015★ 1 cited

Local risk-minimization for Barndorff-Nielsen and Shephard models with volatility risk premium

Takuji Arai

We derive representations of local risk-minimization of call and put options for Barndorff-Nielsen and Shephard models: jump type stochastic volatility models whose squared volatil…

q-fin.MF2015

Local risk-minimization for Barndorff-Nielsen and Shephard models

Takuji Arai, Yuto Imai, Ryoichi Suzuki

We obtain explicit representations of locally risk-minimizing strategies of call and put options for the Barndorff-Nielsen and Shephard models, which are Ornstein--Uhlenbeck-type s…

math-ph2013

Quaternifiations and extensions of current algebras on S^3

Tosiaki Kori, Yuto Imai

Let be the quaternion algebra. Let be a complex Lie algebra and let be the enveloping algebra of . We define a Lie algebra structure on the tensor product space o…