Parag Khanna

Parag Khanna is a senior research fellow at the New America Foundation and author of The Second World: Empires and Influence in the New Global Order and How to Run the World: Charting a Course to the Next Renaissance.

'One Mega-City, Many Systems': The Evolution of Hong Kong

Cities around the Pearl River Delta have connected to form one giant metaphor about modern China.

Needed: An Economic Performance Index for Cities

Better metrics would allow for increased investment in the world's metro areas

Mayor of the World: How Bloomberg Flexes New York's Diplomatic Muscle

Cities, not countries, are increasingly where the foreign policy action is