activity
20162022
most citedUnified Discrete-Time Factor Stochastic Volatility and Continuous-Time Ito Models for Combining Inference Based on Low-Frequency and High-Frequency

3 citations · 4 across the 6 of their papers we have counts for

collaborators

9 papers

stat.ME20221 cited

Volatility Models for Stylized Facts of High-Frequency Financial Data

Donggyu Kim, Minseok Shin

This paper introduces novel volatility diffusion models to account for the stylized facts of high-frequency financial data such as volatility clustering, intra-day U-shape, and lev…

stat.ME2022

Dynamic Realized Beta Models Using Robust Realized Integrated Beta Estimator

Donggyu Kim, Minseog Oh, Minjeong Song +1

This paper introduces a unified parametric modeling approach for time-varying market betas that can accommodate continuous-time diffusion and discrete-time series models based on a…

econ.EM2021

Exponential GARCH-Ito Volatility Models

Donggyu Kim

This paper introduces a novel Ito diffusion process to model high-frequency financial data, which can accommodate low-frequency volatility dynamics by embedding the discrete-time n…

stat.ME2021

Conditional Quantile Analysis for Realized GARCH Models

Donggyu Kim, Minseog Oh, Yazhen Wang

This paper introduces a novel quantile approach to harness the high-frequency information and improve the daily conditional quantile estimation. Specifically, we model the conditio…

stat.AP2021

State Heterogeneity Analysis of Financial Volatility Using High-Frequency Financial Data

Dohyun Chun, Donggyu Kim

Recently, to account for low-frequency market dynamics, several volatility models, employing high-frequency financial data, have been developed. However, in financial markets, we o…

stat.ME20203 cited

Unified Discrete-Time Factor Stochastic Volatility and Continuous-Time Ito Models for Combining Inference Based on Low-Frequency and High-Frequency

Donggyu Kim, Xinyu Song, Yazhen Wang

This paper introduces unified models for high-dimensional factor-based Ito process, which can accommodate both continuous-time Ito diffusion and discrete-time stochastic volatility…