>>The study “does not reflect the experience of particular households. Individual households may have moved up or down the income scale if their income rose or fell more than the average for their initial group.”

That's a polite way of saying that the plural of anecdote is not data- so people don't quote stories about the people next door moving up or down as if that proves something. Not sure why you'd post that to me- not a straw man, surely.

>>This is an important distinction, as considerable empirical evidence has made clear that there is a significant amount of movement across income quintiles over time – in other words, there is a lot of income mobility in the U.S. economy. A person working his or her way through college in a relatively low-paying job in year one, for instance, may have climbed into a much higher earnings level by year five.

LOL. Only a particularly foolish straw man would deny quintile movement when that's exactly what the report says. The report says some other stuff too that you don't seem so keen to quote.