The Rio summit did not present any concrete move towards the group's objective of adopting a common currency to challenge the US dollar, says this professor. LANCASTER, England: The BRICS group of nations has just concluded its 17th annual summit in the Brazilian city of Rio de Janeiro. But, despite member states adopting a long list of commitments covering global governance, finance, health, AI and climate change, the summit was a lacklustre affair. The two most prominent leaders from the