Template-Type: ReDIF-Article 1.0 Author-Name: Nuruddeen Usman Author-Name: Kodili Nwanneka Nduka Author-Email: nusman2@cbn.gov.ng Author-Workplace-Name: Monetary Policy Department, Central Bank of Nigeria, Nigeria Title: Announcement Effect of COVID-19 on Cryptocurrencies Abstract: This study uses a fractional integration method to evaluate the efficiency of cryptocurrencies before and after the period COVID-19 had been announced as being a pandemic. Evidence of long memory is confirmed across all subsamples. Additionally, we find a greater degree of persistence during the COVID-19 pandemic period than in the pre-pandemic period. Classification-JEL: I10,E41,G14 Keywords: covid-19,fractional integration,Cryptocurrencies Journal: Asian Economics Letters Pages: 1-4 Volume: 3 Issue: Early View Year: 2022 DOI: 2022/06/16 File-URL: https://a-e-l.scholasticahq.com/api/v1/articles/29953-announcement-effect-of-covid-19-on-cryptocurrencies.pdf File-Format: Application/pdf Handle: RePEc:ayb:jrnael:61