[yxwvut]

Unions have an incumbency problem in which, yes, they're concerned with the effects of pushing too hard, but only insofar as it affects their existing members. See also: significantly tenure-based pay scales for unskilled labor.

[doikor]

The contracts the unions negotiate in the nordics apply to everyone in the sector. So it makes no difference whatsoever for the pay of anyone if they are a union member or not.

The main benefits of being part of an union here is stuff like union lawyer being made available to you if you have a dispute with your employer. And obviously more voice in who will represent you in the negotiations between the government, employers and employees.