> In countries with multi-party systems, parties often have to form coalitions in order to govern. In countries with two-party systems, parties have to do most of that coalition forming before the election.

Exactly. This is really obvious but no one seems to acknowledge it. I even think the coalition dynamic can become a huge distraction from governance on its own. Could we think of tweaks to the process to make things better? Sure. But a wholesale rethink or uncritical mimicry is unlikely to produce something better.