As countries all over the world weigh the benefits of central bank digital currencies, China is pressing its lead with the rollout of the digital yuan ahead of the Beijing Winter Olympics. The People's Bank of China (PBOC) announced on Tuesday that 261 million individuals, or about a fifth of the country's population, have now set up digital yuan wallets. The report comes one month after the wallet was made available for download on Chinese mobile app stores. The U.S. Federal Reserve on Thursday also released a long-awaited white paper looking at the viability of a digital dollar. The paper...