Search Results - "Podolskij, Mark"
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Is the diurnal pattern sufficient to explain intraday variation in volatility? A nonparametric assessment
Published in Journal of econometrics (01-08-2018)“…In this paper, we propose a nonparametric way to test the hypothesis that time-variation in intraday volatility is caused solely by a deterministic and…”
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2
Estimation of volatility functionals in the simultaneous presence of microstructure noise and jumps
Published in Bernoulli : official journal of the Bernoulli Society for Mathematical Statistics and Probability (01-08-2009)“…We propose a new concept of modulated bipower variation for diffusion models with microstructure noise. We show that this method provides simple estimates for…”
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3
Microstructure noise in the continuous case: The pre-averaging approach
Published in Stochastic processes and their applications (01-07-2009)“…This paper presents a generalized pre-averaging approach for estimating the integrated volatility, in the presence of noise. This approach also provides…”
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4
Fact or friction: Jumps at ultra high frequency
Published in Journal of financial economics (01-12-2014)“…This paper shows that jumps in financial asset prices are often erroneously identified and are, in fact, rare events accounting for a very small proportion of…”
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EDGEWORTH EXPANSION FOR FUNCTIONALS OF CONTINUOUS DIFFUSION PROCESSES
Published in The Annals of applied probability (01-12-2016)“…This paper presents new results on the Edgeworth expansion for high frequency functional of continuous diffusion processes. We derive asymptotic expansions for…”
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EDGEWORTH EXPANSION FOR EULER APPROXIMATION OF CONTINUOUS DIFFUSION PROCESSES
Published in The Annals of applied probability (01-08-2020)“…In this paper we present the Edgeworth expansion for the Euler approximation scheme of a continuous diffusion process driven by a Brownian motion. Our…”
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7
A TEST FOR THE RANK OF THE VOLATILITY PROCESS: THE RANDOM PERTURBATION APPROACH
Published in The Annals of statistics (01-10-2013)“…In this paper, we present a test for the maximal rank of the matrix-valued volatility process in the continuous Itô semimartingale framework. Our idea is based…”
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8
Optimal estimation of the local time and the occupation time measure for an α-stable Lévy process
Published in Modern Stochastics: Theory and Applications (01-03-2024)“…A novel theoretical result on estimation of the local time and the occupation time measure of an α-stable Lévy process with $\alpha \in (1,2)$ is presented…”
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9
POWER VARIATION FOR A CLASS OF STATIONARY INCREMENTS LÉVY DRIVEN MOVING AVERAGES
Published in The Annals of probability (01-11-2017)“…In this paper, we present some new limit theorems for power variation of kth order increments of stationary increments Lévy driven moving averages. In the…”
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10
Edgeworth expansion for the pre-averaging estimator
Published in Stochastic processes and their applications (01-11-2017)“…In this paper, we study the Edgeworth expansion for a pre-averaging estimator of quadratic variation in the framework of continuous diffusion models observed…”
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11
On limit theory for Lévy semi-stationary processes
Published in Bernoulli : official journal of the Bernoulli Society for Mathematical Statistics and Probability (01-11-2018)“…In this paper, we present some limit theorems for power variation of Lévy semi-stationary processes in the setting of infill asymptotics. Lévy semi-stationary…”
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12
Understanding limit theorems for semimartingales: a short survey
Published in Statistica Neerlandica (01-08-2010)“…This paper presents a short survey on limit theorems for certain functionals of semimartingales that are observed at high frequency. Our aim is to explain the…”
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13
The asymptotic error of chaos expansion approximations for stochastic differential equations
Published in Modern Stochastics: Theory and Applications (2019)“…In this paper we present a numerical scheme for stochastic differential equations based upon the Wiener chaos expansion. The approximation of a square…”
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14
A note on the central limit theorem for bipower variation of general functions
Published in Stochastic processes and their applications (01-06-2008)“…In this paper we present a central limit theorem for general functions of the increments of Brownian semimartingales. This provides a natural extension of the…”
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15
A limit theorem for a class of stationary increments Lévy moving average process with multiple singularities
Published in Modern Stochastics: Theory and Applications (01-09-2018)“…In this paper we present some new limit theorems for power variations of stationary increment Lévy driven moving average processes. Recently, such asymptotic…”
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16
Multipower variation for Brownian semistationary processes
Published in Bernoulli : official journal of the Bernoulli Society for Mathematical Statistics and Probability (01-11-2011)“…In this paper we study the asymptotic behaviour of power and multipower variations of processes Y=$\int {_{ - \infty }^t } \,g(t - s)\sigma _s W(ds) + Z_t ,$…”
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17
Testing the parametric form of the volatility in continuous time diffusion models—a stochastic process approach
Published in Journal of econometrics (01-03-2008)“…We present new tests for the form of the volatility function which are based on stochastic processes of the integrated volatility. We prove weak convergence of…”
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Journal Article Conference Proceeding -
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Estimation of mixed fractional stable processes using high-frequency data
Published in The Annals of statistics (01-10-2023)“…The linear fractional stable motion generalizes two prominent classes of stochastic processes, namely stable Lévy processes, and fractional Brownian motion…”
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19
Estimation of Integrated Volatility in Continuous-Time Financial Models with Applications to Goodness-of-Fit Testing
Published in Scandinavian journal of statistics (01-06-2006)“…Properties of a specification test for the parametric form of the variance function in diffusion processes are discussed. The test is based on the estimation…”
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20
On estimation of quadratic variation for multivariate pure jump semimartingales
Published in Stochastic processes and their applications (01-08-2021)“…In this paper we present the asymptotic analysis of the realised quadratic variation for multivariate symmetric β-stable Lévy processes, β∈(0,2), and certain…”
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