In the first episode of the hit series Mad Men, Don Draper explains to the client, Lucky Strike cigarettes, that advertising is "based on one thing: happiness. And, do you know what happiness is? Happiness is the smell of a new car. It's freedom from fear. It's a billboard on the side of a road that screams with reassurance that whatever you're doing is okay. You are okay."
But, how do you measure your customers' happiness? Predict it? Create products that elicit it? Do customers even know what they want?