It is estimated that bad data costs the United States $3 trillion a year! For more read the 2016 Havard Business Review article.
But where can one find “good” and reliable data? Two great resources:
The US Bureau of Labor Statistics, which employees almost 2,400 economists and statisticians, has a mandate to “fearless[ly] publi[sh] the facts.”
A second excellent source is DataUSA; it was founded in 2014 by Deloitte, Datawheel, and Cesar Hidalgo, Professor at the MIT Media Lab and Director of MacroConnections. DataUSA tells factual and visual stories about business, education, locations, and occupations.