Evidence and expertise have a well-known liberal bias.

I think if you're a liberal, you believe that we all are, at least to some extent, our brothers' keepers, you really believe that we have a sumptuary responsibility to make sure that life is decent for everybody in America, that you believe that society out to be broadly shared, and you believe that you can't have a real democracy unless you have a little bit, at least, of economic democracy.

Generous unemployment benefits can increase both structural and frictional unemployment. So government policies intended to help workers can have the undesirable side effect of raising the natural rate of unemployment.

It should be possible to emphasize to students that the level of employment is a macroeconomic issue, depending in the short run on aggregate demand and depending in the long run on the natural rate of unemployment, with microeconomic policies like tariffs having little net effect. Trade policy should be debated in terms of its impact on efficiency, not in terms of phoney numbers about jobs created or lost.

I have friends, political scientists, sociologists, who all share an interest at least in certain kinds of science fiction.

Are you, or is someone you know, a gadget freak? If so, you doubtless know that Wednesday was iPhone 5 day, the day Apple unveiled its latest way for people to avoid actually speaking to or even looking at whoever they're with.

Democracy or breakdown in Syria would change the whole Middle East overnight.