Search Results for author: Takaaki Koike

Found 5 papers, 0 papers with code

Tail risk forecasting with semi-parametric regression models by incorporating overnight information

no code implementations11 Feb 2024 Cathy W. S. Chen, Takaaki Koike, Wei-Hsuan Shau

This research incorporates realized volatility and overnight information into risk models, wherein the overnight return often contributes significantly to the total return volatility.

regression

Forecasting and Backtesting Gradient Allocations of Expected Shortfall

no code implementations22 Jan 2024 Takaaki Koike, Cathy W. S. Chen, Edward M. H. Lin

In an empirical analysis of stock returns we evaluate and compare a variety of models for forecasting dynamic ES contributions and demonstrate the outstanding performance of the proposed model.

Modality for Scenario Analysis and Maximum Likelihood Allocation

no code implementations6 May 2020 Takaaki Koike, Marius Hofert

We show that various distributional properties of this conditional distribution, such as modality, dependence and tail behavior, are inherited from those of the underlying joint loss distribution.

Avoiding zero probability events when computing Value at Risk contributions

no code implementations28 Apr 2020 Takaaki Koike, Yuri F. Saporito, Rodrigo S. Targino

This paper is concerned with the process of risk allocation for a generic multivariate model when the risk measure is chosen as the Value-at-Risk (VaR).

Markov Chain Monte Carlo Methods for Estimating Systemic Risk Allocations

no code implementations25 Sep 2019 Takaaki Koike, Marius Hofert

We propose a novel framework of estimating systemic risk measures and risk allocations based on Markov chain Monte Carlo (MCMC) methods.

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