The communication is centered on the links between media crisis and concentration, and especially in the case of the daily press. Firstly, we observe the dynamics of the press in France and Switzerland. Especially, we highlight the dramatic crisis of the French information press. Then, we examine how concentration has evolved, in the sector of daily newspapers at a national level both in France and Switzerland. Our objective is to answer the following question: is there an increase of concentration in the press and especially in the Swiss daily press compared to the French one?