Several people have asked me for a link to the site with the high resolution NASA photo of the world at night. I’ve used this picture in several presentations to illustrate geographic variation in the level of economic activity. It is revealing to zoom in on specific regions and countries. This post originally appeared on the NYU Stern Urbanization Project’s blog. To read the original post, click here.

How can a struggling country break out of poverty if it’s trapped in a system of bad rules? Economist Paul Romer unveils a bold idea: “charter cities,” city-scale administrative zones governed by a coalition of nations. (Could Guantánamo Bay become the next Hong Kong?)

Technologies rearrange materials with ingenious recipes and formulas. More people create more technologies, which in turn generates more people. In recent decades technology has enabled the “demographic transition” which lowers birthrates and raises income per person even higher as population levels off. This video records a presentation I gave at the Long Now foundation in May of 2009. It was my first public presentation of the ideas behind the concept of a Charter City.

Excerpt: “The hero of the second half of Mr Warsh’s book is Paul Romer, of Stanford University, who took up the challenge ducked by Mr Solow. If technological progress dictates economic growth, what kind of economics governs technological advance? In a series of papers, culminating in an article in the Journal of Political Economy in 1990, Mr Romer tried to make technology “endogenous”, to explain it within the terms of his model.

Excerpt: “How do you weigh the economic benefit of the thoughts in Bill Gates' head? The sand on a beach can be measured, but how do you calibrate the value of the idea that turned those silica grains into silicon microchips? Though they sound like questions from a Mensa parlor game, they’re actually from the work of economist Paul Romer, and his answers may just revolutionize the study of economics. A sage for the silicon age, Romer is upgrading the dismal science to keep pace with the digital revolution.