双头垄断 duopoly ; [经] Duopoly

寡头垄断 [经] oligopoly ; Oligopoly market ; differentiated oligopoly

寡头垄断（又作寡头） oligopoly

买方寡头垄断 [经] Oligopsony

双头垄断、双寡 duoupoly ; duopoly

双头垄断价格战 Duopoly price war

寡头垄断市场 oligopoly market ; oligopoly monopoly market ; oligopoly monopolized market ; Oligarch Monopoly Market

双头垄断市场 duopsony ; duopoly market

垄断竞争和寡头垄断 Monopolistic Competition and Oligopoly

卖方寡头垄断 Oligopsony ; Oligopoly