oligopoly
寡占
big business
Conjectural variation
market failure
Monopoly
Monopsony
Oligopolistic reaction
Oligopsony
Perfect competition
Planned obsolescence
Prisoner's dilemma
Simulations and games in economics education
Swing producer
Unfair competition
/suto3/google.iconoligopoly
image oligopoly
define oligopoly
wikipedia oligopoly
weblio oligopoly
kotobank oligopoly
jisho oligopoly