With more than half the world's population now living in urban centers, we need to confront the economic, technological and societal challenges of city life, writes IBM CEO Samuel Palmisano. To pave the way for future growth, Palmisano argues, we need better public-private collaboration, universal standards for infrastructure systems and greater regulatory openness. "Every city will need to do some soul-searching," he adds. "Today's global economy is shaping up as a competition among the world's cities."
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