I tested 5 marketing principles to see if they really worked
Nudge
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Joey Jokes Secret Weapon - The Reward Bias
Joe Girard is considered one of the most successful car salesman in the world. Between 1963 and 1978, he sold 13,001 cars. His secret weapon was a tactic that secured all of these sales. He simply sent a greeting card to each of his customers every month. The card simply read, I like you.
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