This paper seeks to briefly analyze an event that we consider the structural crisis of the Euro zone: the independence conflict in Catalonia (2017). The research will focus on the analysis of the economic phenomenon, which is understood as a consequence of the long-term capital crisis. From the analysis of aggregate economic variables —in particular regarding production and industry, public finances, and income of households and workers— and the productive organization, we will try to discuss the notion of a supposed “national oppression” in the perspective of the transformations that occurred after the 2008-09 crisis in Catalonia by approaching the relationship of this region with the rest of the Spain and the eurozone.