TY - JOUR ID - 116573 TI - Intervention Analysis of Daily GBP-USD Exchange Rates Occasioned by BREXIT JO - International Journal of Management, Accounting and Economics JA - IJMAE LA - en SN - AU - Etuk, Ette Harrison AU - Amadi, Eberechi Humphrey AD - Department of Mathematics, Rivers State University of Science and Technology, Port Harcourt, Nigeria Y1 - 2016 PY - 2016 VL - 3 IS - 12 SP - 797 EP - 805 KW - GBP KW - USD KW - Exchange Rates KW - ARIMA modeling KW - intervention analysis DO - N2 - This work concerns itself with the intervention analysis of the British pound, GBP, and the United States dollar, USD.It has been observed that the GBP has fallen sharply after June 23, 2016 relative to the USD. It is being speculated that this is due to the recent exit of Great Britain from the European Union EU. A realization of  the daily exchange rate series from 17th March to 12th September. 2016 is analyzed by ARIMA methods. The intervention point is June 23, 2016, after which there is a sharp fall in the relative value of the GBP. This fall is shown to be statistically significant. The pre-intervention series is observed to follow an ARIMA(1,1,0) model. Following the nature of this fall, an adequate intervention model has been proposed and fitted. UR - https://www.ijmae.com/article_116573.html L1 - https://www.ijmae.com/article_116573_c31a2ef75c4e1a7f11f57efcb992e8b5.pdf ER -