Economist Robert Gordon, of Northwestern University, says he drives out of his way to go to a grocery store where prices are cheaper than at the nearby Whole Fo

Economist Robert Gordon, of Northwestern University, says he drives out of his way to go to a grocery store where prices are cheaper than at the nearby Whole Foods, even though it takes him an extra half hour to save no more than $5. ... And the principles that can make economists seem cheap sometimes lead them to hire help, because they are taught to value their own time. Hmmm.