Carmakers' stocks responded with sharp gains, led by Mazda Motor, Japan's third-largest manufacturer, which rose 3.4% after it forecast that profits in the current year would double to 20bn yen. In the year to end-March, the company made 8.8bn yen, after losing a record 155bn yen the previous year. Mazda's results bolster the recent healthy profit figures from Toyota and Nissan, which underlined the impact of the weaker yen on Japan's export competitiveness.