%0 Generic
%A Stollenwerk, Michael
%C Heidelberg
%D 2023
%F heidok:33700
%R 10.11588/heidok.00033700
%T Modelling and Forecasting of Realized Covariance Matrices
%U https://archiv.ub.uni-heidelberg.de/volltextserver/33700/
%X In this thesis, we use observation-driven models for time-series of daily RCs. That is, we assume a matrix-variate probability distribution for the daily RCs, whose parameters are updated based on the RC realizations from previous days.    In particular, Chapter 2 looks at different matrix-variate probability distributions for the RCs and their theoretical and empirical properties. Chapter 3 proposes a flexible observation-driven model to update all distribution-specific time-varying parameters, not just the expected value matrix as is done in the literature so far. Chapter 4 introduces an observation-driven updating mechanism that is applicable to high-dimensional time-series of RCs. Each of these three chapters is a self-contained paper.