Target proves Karl Marx was right about why wages rise

Target has announced that wages in its stores will now have a minimum starting rate of $11 an hour, rising to $15 by 2020. All of which proves that Karl Marx was indeed right.

Not that Marx was right in every instance, of course — killing all the bright people isn’t the way to kick start an economy, for example (although his insistence that true communism could only arrive after we’d conquered economic scarcity was spot on, as the robots will soon be showing us). The specific issue is, what is it that raises workers’ wages?