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Changing efficiency of BRICS currency markets during the COVID-19 pandemic
This paper studies the information efficiency of BRICS currency markets during the COVID-19 pandemic using daily data spanning 3rd February 2020–31st August 2021. In our preliminary analysis, which consists of tests for random walk and martingale processes, we provide evidence of time-varying weak-f...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Springer US
2021
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8574912/ http://dx.doi.org/10.1007/s10644-021-09363-3 |