As a researcher employed at the University of Southern Denmark, you are automatically covered by the
Collective Agreement for Academics in the State (Danish).
Your basic salary, number of holidays, pension and much more is determined by this agreement.
The labour market is characterized by strong trade unions and collective agreements, termed the Danish Model. This means that the general terms of employment are regulated by collective agreements made by the trade unions and employer associations. In this folder from the Ministry of Finance, you can read more about employment in the Danish State Sector.
This short video made by Dansk Industri (Confederation of Danish Industri) shows an introduction to the Danish Model, collective agreements and how the working conditions and terms of employment are negotiated.