[styrmis]

It seems strange that there is no mention of inflation in the article given that they are comparing prices from up to four years ago to today's prices.

> When Mr. Striphas’s book, “The Late Age of Print: Everyday Book Culture from Consumerism to Control,” first appeared in paperback in 2011, Amazon sold it for $17.50, the author said. Now it is $19.

Well, given that the 2011 $17.50 price would be ~$18.12 today (due strictly to inflation) then it is not as big an increase as suggested.

> When the University of Nebraska Press brought out a bibliography of the novelist Jim Harrison four years ago, Amazon charged $43.87. The price this week: $59.87.

2009: $43.87 Today: $59.87 Correcting only for inflation the price would be: $47.63

Inflation doesn't even account for the majority of the price increase in this case but still this article appears to draw rather strong conclusions from rather flimsy analysis.