PARIS, Jan. 8 (Xinhua) -- The recovery of global economy in 2010 could not be guaranteed, because the massive public investment injected into financial sectors has generated lots of bubbles, the director-general of the World Trade Organization (WTO) said on Friday.

    The recession has reached the bottom but a quick resilience was not evident, Pascal Lamy said on French radio France culture.

    Large amount of public fund used to salvage the economic system has meanwhile fostered economic bubbles that need to be diminished, Lamy stressed.

File photo shows Pascal Lamy, Director General of the World Trade Organization (WTO) looks on before a working session at the 7th WTO ministerial meeting in Geneva December 1, 2009.

    He also pointed out that some dynamic emerging countries like China, Brazil, India and South Africa, which were more active, better managed and less debt-burdened, suffered less impact from the economic crisis and in some degree represented better management than the West during the recession.