| A | B |
| Consumers | People who use goods and services |
| Household | Groups of consumers |
| Producers | People who make goods and services |
| Specialisation | Concentrating one's efforts on the production of a good or service |
| Interdependence | Relying on each other |
| Private goods | Goods and services which satisfy individual needs and wants directly and people are prepared to pay money for them e.g a TV |
| Collective Goods / Public Goods | Goods and services provided free of charge to the consumer by central and local government e.g. street lights, police |
| Public Sector | Government sector - central government and local government |
| Central Government | The country's government which looks after the whole country |
| Local Government | Elected local organisations which look after part of the country e.g. Auckland Regional Council, Manukau City Council |
| Government Department | An organisation responsible to Parliament for providing a service e.g. Justice Department, Social Welfare Department |
| Regional Council | Local government organisation responsible for providing services like sewage disposal, water supply in an area which may cover several cities e.g. Auckland Regional Council |