Almost a decade ago, I published an article with a cutesy title on the decline of party identification in Germany, of which I am inordinately proud. The main message of this piece was that party identification in Germany has not collapsed, but is rather declining at the glacial rate of 0.7 percentage points per year, give or take. Here is the relevant graph:
For a more recent project, I have extended the time-series to cover the whole 1977-2012 period, right up to the begin of the 2013 federal election campaign. As it turns out, de-alignment in the West has come to a virtual halt during the last decade – see here:
If you think that this is still too noisy, have a look at this trajectory, which is derived from a binary logistic model that regresses identifications on time, age, education, and campaign effects. More on this soon – stay tuned.