Central banks, the monetary system and public payment infrastructures: lessons from Brazil's Pix
The Bank for International Settlements (BIS) published a paper on Brazil's recent experience with the Pix retail instant payment system. Since launching in November 2020, Pix has signed up 67% of adults in Brazil, with free payments between individuals and low charges for merchants. The two key ingredients in the success of Pix are, first, the mandatory participation of large banks to kick-start network effects for users, and second, the central bank's dual role as infrastructure provider and rule setter. Pix has also shown how central bank infrastructures can support interoperability and competition, promoting lower costs and greater financial inclusion. These features also have relevance for the possible adoption of retail CBDC.