Publication detail

Optimized Segmentation-Adaptive-Based Testing of the Wavelet Co-movement Analysis: the Case of US and G8 Countries

POMĚNKOVÁ, J. KLEJMOVÁ, E. MALACH, T.

Original Title

Optimized Segmentation-Adaptive-Based Testing of the Wavelet Co-movement Analysis: the Case of US and G8 Countries

Type

conference paper

Language

English

Original Abstract

The paper deals with an identification and the description of the co-movement between the US and G8 countries with regard to the impact of the structural change, i.e. the financial crisis in 2008. For an identification of the co-movement we use optimized segmentation-adaptive-based approach (SAB) of significance testing of the power wavelet cross-spectrum. The SAB testing is based on the standard testing for the power wavelet cross-spectrum adapted for the case, when the data have several levels of volatility during the time evolution, i.e. the data can be split into several segments with different volatility. The number of segments is set with the help of heterosdasticity test and the test for comparison of variances in the segments of the time series. The SAB testing allows us an identification of significant co-movement with respect to the local variance, which can reveal additional significant co-movement areas. For the application we use monthly data of industrial production index for G8 countries in 1993–2017.

Keywords

wavelets, comovement, significance testing

Authors

POMĚNKOVÁ, J.; KLEJMOVÁ, E.; MALACH, T.

Released

1. 2. 2019

Location

Roma, Italy

ISBN

2271-2097

Periodical

ITM Web of Conferences

Year of study

16

State

French Republic

Pages from

1

Pages to

7

Pages count

7

URL

https://www.itm-conferences.org/articles/itmconf/abs/2019/01/itmconf_amcse18_01003/itmconf_amcse18_01003.html

BibTex

@inproceedings{BUT150978,
  author="Jitka {Poměnková} and Eva {Klejmová} and Tobiáš {Malach}",
  title="Optimized Segmentation-Adaptive-Based Testing of the Wavelet Co-movement Analysis: the Case of US and G8 Countries",
  booktitle="ITM Web of Conferences",
  year="2019",
  series="The 2018 International Conference Applied Mathematics, Computational Science and Systems Engineering",
  journal="ITM Web of Conferences",
  volume="16",
  number="17",
  pages="1--7",
  address="Roma, Italy",
  doi="10.1051/itmconf/20192401003",
  issn="2271-2097",
  url="https://www.itm-conferences.org/articles/itmconf/abs/2019/01/itmconf_amcse18_01003/itmconf_amcse18_01003.html"
}