Grandfather is off on an expedition to the North Pole to find the Last Polar Bears and with him goes Roo - a dog of character and strong views. The intrepid explorers set sail on the good ship 'Unsinkable' and embark on the adventure of a lifetime.

Dynamic stochastic general equilibrium (DSGE) models have begun to dominate the field of macroeconomic theory and policy-making. These models describe the evolution of macroeconomic activity as a recursive sequence of outcomes based upon the optimal decision rules of rational households, firms and policy-makers. Whilst posing a micro-founded dynamic optimisation problem for agents under uncertainty, such models have been shown to be both analytically tractable and sufficiently rich for meaningful policy analysis in a wide class of macroeconomic problems, for example, monetary and fiscal...