Skip to main content

All Questions

Filter by
Sorted by
Tagged with
4 votes
0 answers
281 views

Rolling window Kendall's tau against APARCH(1,1) correlation

Assume you want to forecast the correlation matrix of a stocks' basket (say 15 ~ 20 stocks from different sectors); assume you need to forecast at $T$ days because you will use the forecast ouput with ...
Lisa Ann's user avatar
  • 2,153
4 votes
1 answer
306 views

Does the correlation amongst stocks rise when stock values decline?

Is there any research on whether the correlations among stocks rise when stock indices decline? Which model could account and test for that effect ? Maybe GARCH-BEKK, or some models using copulas?
Qbik's user avatar
  • 1,018