Barack Obama and Xi Jinping have obvious disagreements over how to handle North Korea’s illicit weapons program. China is angry about U.S. plans to deploy advanced missile defenses in South Korea to counter the threat, while Obama faces pressure to sanction Chinese banks and companies that help sustain Kim Jong Un’s nuclear ambitions. But the two presidents still have …

  After the US and China ratified the Paris climate accord, there is growing optimism that the agreement can take effect by the end of the year. It has to be signed by 55 countries responsible for 55% of greenhouse gas (GHG) emissions. And ratification by the two economic giants — who emit 38% of the climate-harming GHSs — is …

  In recent years, digital currencies have shown considerable promise. Research by the People’s Bank of China suggests that the best way to take advantage of these innovations is for central banks to take the lead, both in supervising private digital currencies and in developing digital legal tender of their own. At the PBOC, this effort is underway. In approaching …