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Polk and Karreth with new study on voter responses to social democratic party ideological moderation

Photo of Jonathan Polk. Photo.

To what extent does moderation in ideological positioning by social democratic parties affect their short- and long-term electoral fortunes?

This chapter builds on our prior work to further probe whether there is a link between moderation and individual voters’ shifts from social democratic parties at a later point, by considering a larger number of cases and by differentiating between the economic and cultural dimensions. We examine individual-level data on voting behavior combined with information on mainstream left parties’ ideological shifts in up to fifty elections in sixteen countries over recent decades. 

The findings show that (a) moderation can have detrimental consequences in the longer term; (b) the consequences of moderation differ across the left-right and cultural dimensions of electoral competition; and (c) the combination of individual-level analysis, with broader contextual and systemic considerations, is essential to fully engage with these questions.