Why do some parties live fast and die young, but other endure? And why are some party
systems more stable than others? Based on a blend of data derived from both qualitative …

Does electoral competition increase affective polarization? Can inter-party cooperation
depolarize voters? Addressing these questions is challenging since both competition and …

In parliamentary democracies, elections distribute the seats in parliament, but who gets into
government and determines the policy agenda over the course of the legislative term is …

Affective polarization is a central characteristic of political competition, but high levels are
seen as potentially harmful. In this article, we link the study of affective polarization to that of …

Scholars have long debated whether populism harms or improves the quality of democracy.
This article contributes to this debate by focusing on the impact of populist parties in …

National executives in Western democracies are not unilateral deciders: they lead parties
with long-term policy priorities and manage challenging multiparty coalitions. Leaders of …

The traditional Spanish imperfect bipartisanship and the alternation in power that emerged
in the early 80s between the center-left PSOE and the conservative PP have shifted towards …

Previous studies conclude that governments fulfill a large share of their campaign pledges.
However, only a minority of voters believe that politicians try to keep their promises, and …

Party politics across Central and Eastern Europe has become less structured. Many of the
divides that anchored political competition have waned in recent years, weakening the …

Most analyses dealing with the interaction of parties in parliament assume their interests to
be fixed between elections. However, a rational perspective suggests that parties adapt their …