Japanese business mood climbed to an eight-year high and corporate inflation expectations rose to record levels, a quarterly survey showed, underlining the economy's resilience to the Middle East war and bolstering the case for more rate hikes. The data will be among factors affecting the Bank of Japan's quarterly growth and inflation forecasts due next month, which will offer clues on how soon it could raise interest rates again after a hike to a 31-year high of 1% in June.