The key to getting into the top band of the mark scheme for 25 markers is to show sustained evaluation throughout the response.A very useful formula for answering these sorts of questions is to start with some standard chains of analysis, include a diagram with the chain before arguing using the sign post "it depends on" for the rest of the essay.Making sure to include real world figures of inflation rates and examples or inflation deflation around the world.If this 25 marker is one of the first questions in the exam then you will have to quote from the text that is provided.