问答题 Just a few years ago, the world economy was in a mess. Today, growth prospects are brighter, but progress is slow, uneven and uncertain. Is the U.S. recovery sustainable? Will the euro zone overcome its economic difficulty and return to growth? Will faster-growing emerging markets overheat, or simply grow old before they grow rich? Which consumers will drive the global economy? These were just some of the issues raised by the 730 investors. However, a majority of these investors are optimistic about global economic expansion this year, banking on growth led by China and U.S. But most fear that structural problems, such as unsustainable debt, inadequate infrastructure and growing income gaps, may harm long-term growth prospects. A surprising 65% of investors agree that growing income diversities threaten the capitalist system. But smart investors are staying informed and flexible, while searching for value opportunities in troubled developed economies such as Greece, Italy and Spain. They are also looking beyond China and rising markets in South-East Asia.