Odaily Planet Daily News BIS economists conducted a macroeconomic study on the potential impact of introducing retail central bank digital currencies (CBDCs), arguing that the optimal level of CBDC is an issuance rate of 40% of gross domestic product (GDP). The report found that if the issuance rate is 30% of GDP, CBDC can increase a country's output by nearly 6% and achieve welfare gains of more than 2%. However, the authors believe that the optimal policy outcome accounts for an even higher proportion of GDP, reaching 40%. (ledgerinsights)