Document Type : Research Note
Authors
1 Department of Mathematics, Rivers State University, Port Harcourt, Nigeria
2 Department of Statistics, Federal University of Technology, Owerri, Nigeria
3 Department of Statistics, University of Uyo, Uyo, Nigeria
Abstract
Russia and Ukraine are in a war, with the former invading the latter. This puts the latter under great stress, many have died in the process and many more have been displaced and many more have fled from Ukraine. This has resulted in intervention in many time series related to Ukraine. For example, the time series of the daily exchange rates of Ukrainian Hryvnia (UAH) and United States Dollars (USD) experienced an intervention on the first day of Russian incursion. By Box and Tiao (1975) approach, a realization of the time series from 1 January 2022 to 15 March 2022 is analyzed. The intervention model arrived at is found adequate. It can be the basis for management and planning.
Keywords
- Ukrainian Hryvnia (UAH)
- United States Dollars (USD)
- exchange rates
- intervention
- Russian invasion of Ukraine
Main Subjects
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COPYRIGHTS |
©2022 The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers.
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