By keeping interest rates low relative to the US Federal Reserve and other major central banks, Japan has seen its currency weaken against the dollar and other currencies. That has accentuated the increase in costs for imports of many goods. Ueda has repeatedly indicated he won't take drastic action given Japan's slow wage growth, shrinking and aging population and other challenges. He said it was vital to ensure the trend toward inflation will continue.“There are difficult problems. But for right now, and we are speaking about Japan here, the situation is not such that there is a major raising of interest rates. For now, the financial system remains basically stable,” he said.