Sentence:  If the takeover is approved, Comcast would control 20 of the top 25 cable markets,nb.... Antitrust officials will need to consider Comcast's status as a <WSD>monopsony</WSD> (a buyer with disproportionate power), when it comes to negotiations with programmers, whose channels it pays to carry. 
Meaning of the word marked with <WSD> tags:  A buyer with disproportionate power.