2 papers
econ.EM2024
Sequential monitoring for explosive volatility regimes
Lajos Horvath, Lorenzo Trapani, Shixuan Wang
In this paper, we develop two families of sequential monitoring procedure to (timely) detect changes in a GARCH(1,1) model. Whilst our methodologies can be applied for the general…
stat.ME2024
Detection of a structural break in intraday volatility pattern
Piotr Kokoszka, Tim Kutta, Neda Mohammadi +2
We develop theory leading to testing procedures for the presence of a change point in the intraday volatility pattern. The new theory is developed in the framework of Functional Da…