Do electoral results come as a surprise because our empirical models are limited?

Recent elections in many European countries have seemed less predictable, as party systems fragment and new parties challenge the established ones on a range of issues. Looking at the recent case of Finland, Zhen Im, Hanna Wass, Heikki Hiilamo and Timo Kauppinen argue that political scientists need to develop new models for mapping multiple, changing issues for electoral competition.