The Bank of Japan (BOJ) has given an upbeat assessment of the Japanese economy and hinted that it may soon withdraw some emergency support measures. The Deputy governor of the bank Hirohide Yamaguchi said the economy was now entering a positive cycle as it was showing signs of improvement. The bank said that keeping these measures in place too long could hinder an autonomous recovery. The Japanese economy emerged from recession in the second quarter of this year after four consecutive quarters of deep contraction. Along with other central banks around the world, the BOJ has been pumping money into the economy to help stimulate demand.