When we talk about "sector involvement," it means the participation or presence of a specific industry or area of the economy in a particular activity or situation. Full definition
Some who work in the public sector and other organisations concerned with criminal justice believe that private sector involvement of this sort is wrong. (politics.co.uk)
There will also be a significant expansion of private - sector involvement in the NHS for cancer patients. (politics.co.uk)
Putting a price on the emission of greenhouse gases will stimulate that private - sector involvement even more. (issues.org)