Wisconsin to decertify 2020 election

No, they don't. A monopoly cannot remain a monopoly for long due to competition that inevitably arises. Same with cartels.

Monopolies often last for a lifetime or two. That is not long from a historical perspective, but is literally a lifetime to those that experience it. OPEC has lasted 60+ years, with varying degrees of success. The petro corporation oligopoly has lasted for 70+ years, with more success. The barriers to entry have kept both humming along fine for decades.
 
Monopolies often last for a lifetime or two.
No.
That is not long from a historical perspective, but is literally a lifetime to those that experience it.
No.
OPEC has lasted 60+ years, with varying degrees of success.
OPEC isn't a monopoly. They are one competitor on the oil markets.
The petro corporation oligopoly has lasted for 70+ years, with more success.
What 'petro corporation oligopoly'? There is no such thing.
The barriers to entry have kept both humming along fine for decades.
What barriers of entry?
 
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