The researchers in political sciences, communication or sociology who are interested in public sphere are not so much concerned with a civil and solidarity-based economy perspective; reciprocally, the economists and sociologists working on the topic of a civil and solidarity-based economy often do not use the concept of public sphere in their conceptual equipment. This bulk-heading is partly due to an opposition between work, defined as an alienating activity and political activity defined as an action typical of the free man that many authors say to borrow from Hannah Arendt and introduces a radical dichotomy between economic sphere and public sphere. However, as an historical investigation clearly indicates, the analytical distinction between political order and economic order has not to be transformed into an empirical dissociation. The civil and solidarity-based economy thus invites the researcher to think together the economic activity and the political activity in order to look further into the concept of public sphere.