We begin this week with a simple pop quiz. Is inflation good or bad? Answer quickly. I’m sorry – your answer is wrong. Or rather, we can’t know if your answer is right or wrong because we are not sure what is meant by the question. We may think we know – and we may be right – but we can’t be sure, because the word inflation has different meanings for different people in different places and different times. In fact, even the same people in the same place and time can’t agree on a precise definition.