The private sector practices a more individual salary policy. Often the salary is negotiated individually, and the role of the trade unions is usually more subdued. Public authorities, employers associations, and unions regularly publish detailed salary statistics which give an indication of the salary level.
When you are employed in the public sector, your salary level is set out in collective agreements.
The normal market mechanisms naturally also apply to salary determination. These include conditions regarding areas of business, geography and your individual background and skillset.