What is a person called who organizes and operates a business?

The term for a person who organizes and operates a business is entrepreneur. An entrepreneur is someone who takes the initiative to start a business, often taking on financial risks in the hope of profit. They are characterized by their ability to innovate, create solutions, and establish enterprises that meet market demands.

In contrast, while a manager oversees day-to-day operations within a business, they may not necessarily be the one who started it. An investor plays a role in providing capital to businesses but is not involved in the daily management or operational aspects. An executive typically refers to a high-level manager with significant decision-making authority, often overseeing large areas of a company's operations but may not be the founder or originator of the business itself.

Thus, the role of the entrepreneur encompasses the foundational aspects of business creation and operation, making it the most accurate answer to the question.