China’s currency was expected to be one of the main topics at this week’s Group of 20 (G20) meeting. Instead, Japan’s yen and monetary policy were identified as a source of concern for some officials from the world’s leading economies. Bank of Japan governor Haruhiko Kuroda told reporters in Shanghai on Saturday that there was no opposition to the bank’s negative rate policy at the G-20 meeting, and that he got understanding from G-20 members.