The economics of self-confidence

Which types of people typically move to major cities, such as New York, Washington, D.C., or Boston? A recent study suggests that a person's personality might have more influence on the decision to move to the city than either wealth, education or age.
In fact, self-confidence might play a strong role in who migrates into major metropolitan areas, according to a study, authored by economists Jorge De la Roca of the University of Southern California, Gianmarco Ottaviano of the London School of Economics, and Diego Puga of the Center for Monetary and Financial Studies in Madrid.