Abstract
The Precariat as social class is a core issue in social sciences. The authors contribute to this debate by introducing two approaches to measures the size and the social charateristics of the Precariat using two quantitative database. They estimate the size of the Precariat as a group on the labour market, and compare its social position with two other labour groups of the seg-mentation theory (the secondary and the lower primary). They found that while the standard of living condition of the Precariat is more akin to the secundary segment, the values and the level of satisfaction is more similar to the lower primary segment.