Why Do We Spend Money We Don't Have?

This is something a lot of us do, and something that causes all kinds of problems in our lives. So why do we spend money we don’t have, and what can we do about it? We’ll demonstrate why our brains don’t always think $5 is $5, investigate how a trick called ‘anchoring’ shapes the way we respond to price tags and learn about the power of thinking about a thing called opportunity cost.