Text mining is an active field of statistical research. In this paper we use two methods from text mining: the Poisson Reduced Rank Model (PRR, see Jentsch et al. 2020; Jentsch et al. 2021) and the Latent Dirichlet Allocation model (LDA, see Blei et al. 2003) for the statistical analysis of party...

German Social Democracy is faced with tremendous challenges of societal and economic changes: party dealignment, a bourgeoisifying of society, the rise of media democracy and economic and cultural globalisation. The party's reaction - a third order change in its ideological objectives and a...