How to Lie Without Statistics

Greg Mankiw wrote another insightful piece about Parade Magazine's "Annual Salary Survey."

By my count, about 14 percent of the people in Parade's sample earn more than $1 million a year. In the real world, the actual percentage is about 0.2 percent. So, in a truly representative sample of a hundred people, you would most likely have zero, or perhaps one, person with a million dollar income. Finding two would be highly unlikely. 14 would be nearly impossible.

Does this matter? I think it might. There is a common perception in some circles that we can solve all our fiscal problems if only we were willing to tax the rich some more. Yet, in reality, there are not enough rich for this to work. By presenting such a skewed cross-section of incomes, Parade inadvertently feeds an all-too-common misperception.