"WHY DID PEOPLE START USING MONEY? WHAT IS GDP, AND HOW CAN WE MEASURE IT? WHAT CAUSES STOCK MARKETS TO CRASH? THE LITTLE BOOK OF ECONOMICS answers these fascinating questions and more. Packed with simple explanations, witty illustrations, and step-by-step diagrams that untangle knotty theories, you'll find plenty to stimulate you in this book, whether you're a novice, a student, or an arm…