Theoretical distinction of sectors
| For-profit sector | Public sector | Third sector | |
| Definition | Organisations that are privately owned and administered according to the pursuit of profits. | Organisations that are publically owned and administered. | Organisations that are formally structured, privately owned, non-profit distributing, self-governing and benefiting from voluntary activities.42 |
| Primary activities | Conventionally private goods, but increasingly also public goods | Public goods | Public goods |
| Main type of income | Profits from sales of products and/or services | Taxation | Charitable contributions and/or commissioning |
| Purpose/motivation | Maximise and sustain profits | Achieve social mission (public sector motivation/social value) | Achieve social mission and accountability (social value) |