Per Capita Incomes Down for the Second Straight Year

I notice the government released this just as the Dem National Convention was really into gear, sorta slipping it in there.

Now, not being anything that could be remotely considered an economist (I've read the periodical, however), let me note that income at the top tiers had jumped sharply higher (CEOs have jumped an average 22% in just a year).

So how bad does the lower tier have to be to have the final figures come out so low?