What is Money?
It seems like an obvious question but the answer is somewhat more complex than you may at first have thought. Money isn’t just the jiggle, jiggle in your piggy bank, or the folds in your pocket. There are at least 5 different types of money in an economy, often referred to as M0, M1, M2, M3, and M4. M0 — M4 refers to the type of money that is in circulation at any given time, and understanding these concepts helps to explain why the US Dollar is still in short