TOKYO (AFX-ASIA) - Vice Administrative Finance Minister Toshiro Muto said the ministry's stance on the dollar/yen is unchanged after recent market intervention, adding it is ready to take decisive action if needed. "Our stance has not changed a bit even after the market intervention. If necessary we will take decision action in the market," Muto told AFX Asia. "Calm movements are welcome, although we cannot talk about levels," he said.