Before the __________, agreements between oligopolists were unenforceable contracts; afterwards, such agreements were criminal conspiracies.

Oligopolists

Companies or entities that dominate an oligopoly, controlling significant market share and influencing prices and competition.

Unenforceable Contracts

Contracts that cannot be executed or enforced by law due to lack of essential legal requirements.

Criminal Conspiracies

Agreements between two or more parties to commit an illegal act or a legal act in an illegal manner.