This thesis would not have been possible without the help and backing of a great number of people. First, I want to thank my two outstanding supervisors, Kari Steen-Johnsen and Knut Heidar who have helped me write what is here today. Knut has given invaluable feedback on never-ending drafts and revisions. Kari has always had the time for questions, for discussing possible ways forward and for shooting down my newest distracting idea for some interesting research. She has been incredibly flexible, given important feedback on short notice, and somehow always found something positive to say. I always leave her office in a better mood than when I enter. I have had the great privilege of collaborating with colleagues working on the same themes through the Disruptive Events Project. Marte Slagsvold Winsvold and Bernard Enjolras have always made time for one more discussion or reading of a draft, giving me new perspectives and insights. I have also learned a lot from discussions with, and feedback from, Shana Gadarian, Francisco Herreros and Atte Oksanen at our meetings around the world. As a lucky matter of coincidence two of my best friends were writing their dissertations when I started on this thesis. Atle Hennum Haugsgjerd has been a important friend (and colleague) through my university life and this thesis bears many signs of his influence. His importance cannot be overstated. Andreas Kokkvold Tveit has likewise been an important discussion partner, commenter and "office mate" at our writing sessions at cafés around Oslo and at Blindern. My colleagues at the institute have always given of their time when asked, and most of the work here have been presented and discussed at the institute's "Politikkseminar" under the auspices of Jo Saglie.