Information on public, private, joint sectors.?

Question

I have got to do a small project on public, private and joint/cooperative sectors. Could anyone please help me?

Answer 1

public sector is an organisation which is controlled by the local/national government.

Private sector is a business organisation controlled by private company (for eg: entrepreneur)

Joint ventures- two companies/firms join together, especially when there is a big project to do. Once this project have done, they will go  back to their place as usual.