As a comparative social scientist, Marin is working on modern welfare societies, social security systems and their sustainability, on innovative employment initiatives, health, care and disability policies, as well as on pension reforms.
In the field of social theory, Marin works on corporate, intermediary and societal governance, systems of self-regulation and co-operative change management, promoting the welfare-mix and societal activation as prerequesites of sustainable wealth, health, welfare and well-being.