Business organisation the Institute of Directors (IoD) has called for collective bargaining to be scrapped for teachers and NHS staff.
They are among a set of proposals the trades unions have described as a “Thatcherite fantasy world”.
The IoD put a series of recommendations to government to cut red tape and boost private sector growth.
It also wants an automatic right to ask for flexible working to be removed, in order to increase productivity.
The IoD has put forward 24 “freebie” proposals, which it says would cost the government nothing but would benefit growth, particularly in the private sector.
Among the most controversial would be the call to curb trade union negotiating power in large public sector bodies, said BBC business correspondent Joe Lynam.
The IoD also suggests that workers should pay a deposit of £500 when taking their employers to industrial tribunals to deter what it describes as “vexatious claims”.