'Monopsony'? More like Moronicism.

Paul Krugman calls Amoron what they really are - a corporation abusing their market power.

http://www.nytimes.com/2014/10/20/opinion/paul-krugman-amazons-monopsony-is-not-ok.html?wpisrc=nl_wonk&wpmm=1&_r=0

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 —

Ah, but not a monopoly, but rather a monopsonist

Instead, it is acting as a monopsonist, a dominant buyer with the power to push prices down. And on that front its power is really immense — in fact, even greater than the market share numbers indicate.