the.com/duopoly
A monopoly that learned to share a bedroom with exactly one rival.
means A market where two companies dominate, quietly setting terms while pretending to compete.
from From Greek 'duo' (two) plus the '-poly' of 'monopoly' (from 'polein,' to sell) — coined in the 1880s as economists named the gap between one seller and many.
Cozy mathTwo firms collude easier than twenty ever could.
Everyday examplesVisa and Mastercard, Boeing and Airbus, Coke and Pepsi.
Price danceEach watches the other before nudging prices upward.