But the mere existence of income inequality tells us little about what, if anything, should be done about it.

Ezekiel Emanuel reminded New York Times readers last week of something health economists have known for eight decades. Health expenditures are highly concentrated, with just 10 percent of the population accounting for nearly two-thirds of annual health spending.

Why should New York City bear the $216 million burden of the trial of Khalid Sheikh Mohammed?

This Cancun meeting ought to end like the last one, with the kleptocrats sent packing with copies of the Collected Economic Wisdom of the Gipper as the best prescription for dealing with climate change.

Having good services cannot make up for delivering difficult but necessary budget decisions, especially if our goal is public good.

It is in Mahabalipuram that American businesses are finding some of their largest markets. It is also the place where U.S. policy makers may find the greatest opportunities for building the U.S.-India relationship, especially given New Delhi's recent mixed signals about its interest in closer ties with America.

For two years, President Barack Obama has pretended that terrorism is a crime, that prisoners are unwanted, and that Gitmo is unneeded.