Stock market efficiency: An intraday case of study about the G-20 group.

ABSTRACT: Given the importance of the financial markets in the global context, data analysis and new statistical approach are always welcome, especially if we are referring to G-20 group (the world's richest countries). As we know, the pandemic outbreak of COVID-19 has affected the global economy, and its impact seems to be inevitable (as it was in 2020). From the perspective of what was raised above, this paper aims to analyze the stock market efficiency in 21 indexes of G-20. We are going to do our analysis with intraday scale (of hour), from May 2019 to May 2020. In order to be successful in this analysis, we applied the DFA and the DCCA methods, to identify or not two points:i)Are G-20 stock market efficient in their weak form?ii)With open/close values, it is possible to identify some type of me

SUBMITTER: Zebende GF 

PROVIDER: S-EPMC8800029 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature