The demand curve explains the relationship between price and number of sales (also called product demand). Companies can leverage some control over their sales by manipulating the price, but there are ...

Consider this question that seems like a riddle: What is the difference between demand and quantity demanded? They sound like two sides of the same question, but they're actually different – and ...

Wow. It’s not often a chart can say so much about human behavior, economic theory, oil consumption and maybe even the future of energy all in one spreadsheet column. For one thing, the data I show ...