TITLE:
On Detecting Sudden Changes in the Unconditional Volatility of a Time Series
AUTHORS:
Dilip Kumar
KEYWORDS:
AIT-ICSS Algorithm, Long Memory, Sudden Change, Volatility
JOURNAL NAME:
Theoretical Economics Letters,
Vol.6 No.2,
April
26,
2016
ABSTRACT: The present study
highlights the drawback of using Sanso, Arago and Carrion’s (2004) AIT-ICSS
algorithm in detecting sudden changes in the unconditional volatility when long
memory is present in volatility. Simulation experiments show that the AIT-ICSS
test is severely oversized and exhibits low power when long memory is present
in volatility.