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Taras Bodnar

Professor

My main research interests are high-dimensional statistics and random matrix theory with applications to practical problems at the intersection of mathematics and finance.

Presentation

My main research interests are high-dimensional statistics and random matrix theory with applications to practical problems at the intersection of mathematics and finance.

The main goals are the following:

  1. To achieve a quantitative understanding of the structure of multivariate and matrix variate distributions with applications to machine learning, finance, signal processing, among others;
  2. To elaborate data-driven methods for the estimation of high-dimensional optimal portfolios from viewpoints of both frequentist and Bayesian statistics;
  3. To develop new methods for making statistical inference on the mean vector, the regression coefficients, the covariance matrix, and the precision matrix in the high-dimensional setting;
  4. To improve the estimation of the parameters in high-dimensional volatility models;
  5. To establish the distributional properties of multiple testing procedures with dependent test statistics;
  6. To derive sequential procedures for detecting changes in the parameters of high-dimensional statistical models.

The obtained results were published in major statistical and financial journals, like The Annals of Statistics, Journal of Machine Learning Research, Journal of Business and Economic Statistics, IEEE Transactions on Signal Processing, Bayesian Analysis, Scandinavian Journal of Statistics, Journal of Multivariate Analysis, The European Journal of Operational Research, Journal of the Empirical Finance, Finance Research Letters, Computational Statistics and Data Analysis, Applied Mathematics and Computation, The European Journal of Finance, among others.

Publications

2025

Taras Bodnar, Nestor Parolya (2025) Higher-order nonlinear shrinkage estimator of large-dimensional precision matrix THEORY OF PROBABILITY AND MATHEMATICAL STATISTICS (Article in journal) Continue to DOI
Olha Bodnar, Taras Bodnar, Vilhelm Niklasson (2025) Bayesian regularization of the tangency portfolio Recent developments in Bayesian econometrics and their applications: Festschrift in honour of Sune Karlsson, p. 197-221 (Chapter in book)
Taras Bodnar, Nikolaus Hautsch, Yarema Okhrin, Nestor Parolya (2025) Consistent estimation of the high-dimensional efficient frontier European Journal of Finance (Article in journal) Continue to DOI
Taras Bodnar, Solomiia Dmytriv, Yarema Okhrin, Dmitry Otryakhin, Nestor Parolya (2025) High-Dimensional portfolio selection with HDShOP package European Journal of Finance (Article in journal) Continue to DOI
Taras Bodnar, Dmitry Otryakhin, Erik Thorsen (2025) Estimation of the multivariate symmetric stable distribution using the method of moments Communications in Statistics - Theory and Methods, Vol. 54, p. 5039-5056 (Article in journal) Continue to DOI

Coworkers

Organisation