That’s the title of a very good article by Princeton political scientist Carles Boix and J.C. Major. The article provides background to the Catalan self-determination movement but also discusses recent developments and the reasons for them. One takeaway is the enormous role that the Spanish government’s response to the last Catalan autonomy statute, essentially gutting it, played in provoking the growth of the independence movement. As I noted in a piece in Electoral Studies 10 years ago, when the central government spikes decentralization, secessionists strengthen, but when a referendum on independence or autonomy fails (the failure being internal rather than external in origin), secessionists weaken. The article also contains important information on what the Catalan government plans to do if the central government forbids it to hold a referendum, as seems likely. I won’t spoil it; just read the article.