"They see it as the next savior of these urban economies."

This is where the arts, business, research and technology converge to create the world's foremost urban economy.

"It shores up the urban economy with water and also helps agriculture."

The rural and early urban economies had little damaging impact on their surroundings.

Despite the development of the urban economy, local people continue to keep livestock.

But with the urban economy now booming, the government can no longer simply requisition any surface it wants to spread its word.

But some forces in the urban economy actually work to preserve the signs.

They now mix such activities with work in the growing urban economy and in government.

Now, they are part of the urban and world economies.

It has the potential to link isolated communities to the mainstream urban economy.