Two key statistical features of finance markets are non-linearity and Non-Gaussianity. Between 2011 and 2012, Dag Tjøstheim coordinated the research of the project "Non-Guassian Time Series and Nonlin
We consider a regression model with autoregressive terms and propose significance tests for the detection of change points in this model. Our tests are applicable to both low- or moderate dimension an
The table provides a Scenario-wise list of predictive variables. We log-transformed the absolute values and used the ratios as is. The dataset contains no missing value. We tested the variables for co
Accurately modeling time-varying dependence structures is essential for financial market analysis, particularly during periods of market stress. Recognizing that traditional copula models often fail t