Yeah, everyone’s ngram-ing, so why not me? The number of mentions of Karl Marx vs. Friedrich Hayek in a sample of the books in Google’s database. The original Google chart doesn’t scale nicely, so I’ve retouched it some using Adobe Illustrator. But the relative trajectories are unchanged. To see the Google original, click here: Marx vs. Hayek.
They just can’t stop talking about the Old Man, can they? He’s come down some since the mid-1970s, but you’d think that Freddie would have come up a lot more.