In the realm of economics, there are lots of theories. There are also lots of urban legends. Both are often propagated despite lots of facts that question their credibility. Daniel Patrick Moynihan, the former senator from New York, once said, “Everyone is entitled to his own opinion, but not to his own facts.” In today's world of “fake news,” sorting out fact from fiction is a challenge. In the realm of economics, there's no shortage of data, which can be very helpful in discerning the difference between information and disinformation.