This essay is about an important area in which there has been major rethinking-industrial policy, by which the authors mean government policies directed at affecting the economic structure of the economy. The standard argument was that markets were efficient, so there was no need for government...

In 2000, the average driver in US metropolitan areas endured 27 hours of traffic delays, a rise from 7 hours in 1980. In many other countries, traffic delays are considerably worse than in the United States, and in developing countries urban traffic congestion is increasing with alarming...