Normal Approximation of Compound Hawkes Functionals - Archive ouverte HAL
Article Dans Une Revue Journal of Theoretical Probability Année : 2023

Normal Approximation of Compound Hawkes Functionals

Résumé

We derive quantitative bounds in the Wasserstein distance for the approximation of stochastic integrals with respect to Hawkes processes by a normally distributed random variable. In the case of deterministic and non-negative integrands, our estimates involve only the third moment of integrand in addition to a variance term using a square norm of the integrand. As a consequence, we are able to observe a "third moment phenomenon" in which the vanishing of the first cumulant can lead to faster convergence rates. Our results are also applied to compound Hawkes processes, and improve on the current literature where estimates may not converge to zero in large time, or have been obtained only for specific kernels such as the exponential or Erlang kernels.

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Dates et versions

hal-04726261 , version 1 (08-10-2024)

Identifiants

Citer

Mahmoud Khabou, Nicolas Privault, Anthony Réveillac. Normal Approximation of Compound Hawkes Functionals. Journal of Theoretical Probability, 2023, 37 (1), pp.549-581. ⟨10.1007/s10959-022-01233-6⟩. ⟨hal-04726261⟩
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