Greetings from Amsterdam where I am spending the next few days talking about what drives spatial changes in unemployment at a Tinbergen Institute regional science workshop. The spatial econometric work that I am outlining tomorrow provides the conceptual framework for the construction of the Employment Vulnerability Index, which received a lot of press earlier in the year. But while I was flying over here I thought about the concept of fiscal sustainability which is now getting a lot of press. So this is the first of a multi-part series on what constitutes a sustainable fiscal policy. Its that time again. Time to debrief!