Jumps or staleness?

A Kolokolov, R Renò - Journal of Business & Economic Statistics, 2024 - Taylor & Francis
Even moderate amounts of zero returns in financial data, associated with stale prices, are
heavily detrimental for reliable jump inference. We harness staleness-robust estimators to …

Estimating jump activity using multipower variation

A Kolokolov - Journal of Business & Economic Statistics, 2022 - Taylor & Francis
Realized multipower variation, originally introduced to eliminate jumps, can be extremely
useful for inference in pure-jump models. This article shows how to build a simple and …

Bootstrapping Laplace transforms of volatility

U Hounyo, Z Liu, RT Varneskov - Quantitative Economics, 2023 - Wiley Online Library
This paper studies inference for the realized Laplace transform (RLT) of volatility in a fixed‐
span setting using bootstrap methods. Specifically, since standard wild bootstrap …

Inference for option panels in pure-jump settings

TG Andersen, N Fusari, V Todorov… - Econometric …, 2019 - cambridge.org
We develop parametric inference procedures for large panels of noisy option data in a
setting, where the underlying process is of pure-jump type, ie, evolves only through a …

A local Gaussian bootstrap method for realized volatility and realized beta

U Hounyo - Econometric Theory, 2019 - cambridge.org
This article introduces a local Gaussian bootstrap method useful for the estimation of the
asymptotic distribution of high-frequency data-based statistics such as functions of realized …

The local fractional bootstrap

M Bennedsen, U Hounyo, A Lunde… - … Journal of Statistics, 2019 - Wiley Online Library
We introduce a bootstrap procedure for high‐frequency statistics of Brownian semistationary
processes. More specifically, we focus on a hypothesis test on the roughness of sample …

Criptocrashes

A Kolokolov - Available at SSRN 4663313, 2023 - papers.ssrn.com
This paper proposes a new nonparametric test for detecting short-lived locally explosive
trends (drift bursts) in pure-jump processes. The new test is designed specifically to detect …

Inference for local distributions at high sampling frequencies: A bootstrap approach

U Hounyo, RT Varneskov - Journal of Econometrics, 2020 - Elsevier
We study inference for the local innovations of Itô semimartingales. Specifically, we construct
a resampling procedure for the empirical CDF of high-frequency innovations that have been …

Bootstrapping volatility functionals: a local and nonparametric perspective

XB Kong, SJ Xu, W Zhou - Biometrika, 2018 - academic.oup.com
Volatility functionals are widely used in financial econometrics. In the literature, they are
estimated with realized volatility functionals using high-frequency data. In this paper we …