A socio-economic policy about the labour market that seeks to be a common strategy for reconciling and improving flexibility and security.

It was conceived in Denmark and is an acronym composed of the words 'flexibility' and 'security'. It is usually considered an innovative way of preserving the welfare society.

Basically, the flexibility is based on facilitating personnel termination for companies, while the security component seeks to increase separation pay and protection for the unemployed. The third pillar of the system is promotion of a training policy by means of integrated learning strategies that continue throughout a person's working life to ensure the permanent adaptability of personnel.