Firms could buy and sell permits to make alcoholic drinks or fatty foods under plans being put to Tory leaders.
The system would work along the same lines as carbon trading schemes aimed at tackling pollution.
The proposal, to be put forward at a Conservative summit on social responsibility, comes from an advisory group set up by leader David Cameron.
The advisers say companies that act responsibly could be rewarded by having less government regulation.
This post is written through gritted teeth!
20 minutes ago