Amazon’s Monopsony Is Not O.K.

24 Oct 2014 • nytimes.com

So far Amazon has not tried to exploit consumers. In fact, it has systematically kept prices low, to reinforce its dominance. What it has done, instead, is use its market power to put a squeeze on publishers, in effect driving down the prices it pays for books — hence the fight with Hachette. In economics jargon, Amazon is not, at least so far, acting like a monopolist, a dominant seller with the power to raise prices. Instead, it is acting as a monopsonist, a dominant buyer with the power to push prices down.

Monopsony. New vocabulary word. :-)