Ideas are the currency of the new economy.

Denser cities are smarter and more productive

Access to talented and creative people is to modern business what access to coal and iron ore was to steel-making.

Places that succeed in attracting and retaining creative class people prosper; those that fail don't.

We need to remake and reinvent our housing system so that it supports the flexibility and mobility of our economic system broadly. Home-ownership is rewarded by the federal tax code, which made great sense when that piece of the American Dream, and all the consumption that came with it, was essential to rebuilding the economy. These days, however, it feels like a huge penalty to people who want to travel light within the new mobile economy without a mortgage to hold them back.

We are the only major developed nation that isn't investing meaningfully in high-speed rail, and I believe we're making a mistake. Transportation systems that are fast and efficient and environmentally clean are going to enable the formation of these new mega-regions, the heart of the spatial fix. We need to be able to accelerate the movement of people, goods, and services - the very movement of ideas, knowledge, and creativity - between our major population centers. We have to build these links.

Ideas are the currency of the new economy.