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Pure Competition - a marketing situation in which there are a large number of sellers of a product which cannot be differentiated and, thus, no one firm has a significant influence on price.
Monopolistic Competition - is a type of imperfect competition such that there are many producers competing against each other, but selling products that are differentiated from one another and hence are not perfect substitutes.
Oligopoly - a state of limited competition, in which a market is shared by a small number of producers or sellers.
Monopoly - the exclusive possession or control of the supply of or trade in a commodity or service.
Sole Proprietorship - a type of enterprise owned and run by one person and in which there is no legal distinction between the owner and the business entity.
General Partnership - a business made up of two or more partners, each sharing the business's debts, liabilities, and assets. Partners assume unlimited liability, potentially subjecting their personal assets to seizure if the partnership becomes insolvent.
Limited Partnership - a form of partnership similar to a general partnership except that while a general partnership must have at least two general partners, a limited partnership must have at least one GP and at least one limited partner.
Corporation - an organization—usually a group of people or a company—authorized by the state to act as a single entity and recognized as such in law for certain purposes. Early incorporated entities were established by charter.
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