"I tell our PhD students, you're fortunate to have chosen economics instead of philosophy or English," says John Cawley, professor of economics at Cornell University in Ithaca, New York. "Because the reality is, everyone gets a job."
I think that is the first time I've heard someone say that it's good to be an economist, but the numbers do in fact back up Professor Cawley's statement. This article (if you scroll to the bottom) shows professor salaries in different fields as compared to the salary of an English professor. Economics professors do pretty well on this scale, not only beating the benchmark salary consistently but also increasing their lead over time, resulting in a 41.2% pay premium for the 2009-2010 academic year. Only business and law professors do better, which is particularly interesting since a pretty significant number of those are technically economists as well.