At the annual meeting of the World Economic Forum in Davos that ended last month, the extraordinary optimism of Asian — especially Chinese and Indian — leaders held center stage. For Michael Useem , director of Wharton’s Center for Leadership and Change Management , it all felt very déjà vu: In the late 1990s, a similarly exuberant spirit surrounded American business leaders. But the hubris of unbounded optimism can be dangerous, warns Useem, who moderated a session at the summit. In gathering nearly 3,000 business and political luminaries from around the world in Davos, Switzerland, the World Economic Forum offers a unique window on those who lead the world’s great economies. At the Forum’s annual meeting last month, the extraordinary optimism of Asian leaders held center stage. China’s vice premier Zeng Peiyan anticipated that his country’s GDP per capita in 2010 would be double that of 2000, and India’s finance minister Palaniappan Chidambaram hoped for 8% annual growth in his national GDP.…