What is the main benefit to the economy of the principle of open opportunity

The main benefit of The Principle of Open Opportunity is that anyone can compete in the marketplace.

 The correct answer is : The principle of open opportunity is the principle that anyone can compete in the market.

Explanation:  One of the basic principles that benefits free enterprise is the open opportunity. The economy of the United States benefits from a great tradition of open opportunities. The central idea that everyone can participate in the market.

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what started the norman conquest?

profound political, administrative, and social changes in the british isles. last line of my information: )