De Beers

Read the two articles. What theories from this quarter best describes what is occuring or has occured(use monopoly)? Explain how the theories work and how they can be observed.https://www.paulzimnisky.com/a-brief-history-of-de-beershttps://www.businessinsider.com/history-of-de-beers-2011-12#by-the-time-rhodes-died-in-1902-de-beers-controlled-90-of-the-worlds-rough-diamond-production-and-distribution-but-it-was-ernest-oppenheimer-who-made-the-company-an-empire-4