Public sector comprises organizations accountable to and controlled by central or local government (the state).
Private sector comprises businesses owned and controlled by individuals or groups of individuals.
Mixed economy: economic resources are owned and controlled by both private and public sectors.
Free-market economy: economic resources are owned largely by the private sector with very little state intervention.
Command economy: economic resources are owned, planned and controlled by the state.
Public sector organizations provide essential goods and services for individual citizens and organizations.
Private sector organizations are owned and operated by individuals or groups of people. These organizations are usually operated for a profit, but not all are.
Privatization: sale of public sector organizations to the private sector.
Sole trader: business in which one person provides the permanent finance and, in return, has full control of the business and is able to keep all of the profits.
Partnership: business formed by two or more people to carry on a business together, with shared capital investment and, usually, shared responsibilities.
Limited company
Social enterprise: business with mainly social objectives that reinvests most of its profits into benefiting society rather than maximizing returns to owners.
Cooperative: group of people acting together to meet the common needs and aspirations of its members, sharing ownership and making decisions democratically.
Microfinance: provision of very small loans by specialist finance businesses, usually not traditional commercial banks.
Public-private partnership (PPP): involvement of the private sector, in the form of management expertise and/or financial investment, in public sector projects aimed at benefiting the public.
Private finance initiative (PFI): investment by private sector organizations in public sector projects.
Non-profit organization: any organization that has aims other than making and distributing profit and which is usually governed by a voluntary board.
Non-governmental organization (NGO): legally constituted body with no participation or representation of any government which has a specific aim and purpose, e.g. supporting disadvantaged groups in developing countries or advocating the protection of human rights.
Charities: organization set up to raise money to help people in need or to support causes that require funding.