How long does an ICSID arbitration usually take? Thanks to a novel piece of research it's possible, now, to say. This summer Anthony Sinclair, of Allen & Overy’s international arbitration group, and colleagues Louise Fisher and Sarah Macrory, analysed 115 ICSID cases that went to a final award, breaking down their timetables and discovering how long, on average, each phase takes. But how long is that, and more to the point, is it flattering?