With April's gubernatorial election in Tokyo just around the corner, major candidates have announced their decisions to run. This political event comes amid the world's red-hot competition for intercity popularity.

While advanced-nation cities such as New York, London and Paris are enhancing their charms through fresh improvements in the fields of information, finance, culture and education, emerging-nation cities such as Beijing, Shanghai, Hong Kong and Singapore are growing greatly because of their strengthening economies.

According to the world's urban rankings for 2008 released by the Mori Memorial Foundation, Tokyo placed fourth, thanks to its competitive edge in such fields as economy and environment, after New York, London and Paris in that order and remains the highest-ranking city in Asia. But its status is in jeopardy.