De Beers became a monopoly by:
A) establishing control over diamond mines.
B) usage of economies of scale.
C) usage of technological superiority.
D) ownership of a patent.

Question

Quizplus · Accepted Answer

De Beers became a monopoly by establishing control over diamond mines. They bought or controlled almost all diamond mines in the world, which allowed them to control the supply and prices of diamonds. This monopoly was maintained through aggressive marketing campaigns and strategic alliances with retailers.

De Beers Became a Monopoly By