Topic: The Impact of COVID-19 on the Australian Economy "In Australia, we have a four pillars policy (the 'Big 4') for the banking industry. Basically, it says that the four largest banks, Commonwealth Bank (CBA), Westpac Banking Corporation (Westpac), Australia and New Zealand Banking Group Limited (ANZ) and the National Australia Bank (NAB) are not allowed to merge with each other. Given the above case study, your manager has asked you to prepare a research paper using the market structure and difference economics concepts to identify and justify what type of market structure is the banking industry in Australia. Discuss the rationale behind the Big 4 policy and the advantages and the disadvantages of such policy. Is this policy (the four pillars policy) working satisfactorily and comment on the degree of interdependency between these 4 banks. Discuss the pressures from the FinTech."