This doctoral dissertation examines how service design can contribute to more resilient and democratic economic models during times of socio-economic crisis. The research was motivated by seeing skilled young professionals affected by the 2008 crisis unable to use their skills. The theoretical framework combines economics, sociology, and design. Through participatory action research including interviews and co-design sessions, a collaborative service model called "Credita Social Currency" was developed to facilitate skills-sharing and collaboration. The results demonstrate how service design can help create alternative economic systems to support people during crises.