Economically discriminatory zoning policies--which say that people are not welcome in a community unless they can afford a single-family home, sometimes on a large plot of land--run counter to American ideals and yet are pervasive in America. In most U.S. cities, zoning laws prohibit the construction of duplexes, triplexes, quads, and larger…

Integrating our schools is a goal that many of us share. But some seem to have given up on the idea, as plans to boost racial diversity have come under attack, and as the fixation on test scores has narrowed some people's concept of a good education. There is, however, new hope: integration by socioeconomic status. It's a cost-effective, legally…