I must be freaking productive. That’s because I’m a working parent—with two kids in the perfect age group (12 years old or older) for maximum productivity.

According to a newly released study of 10,000 economists around the world, parents with two or more kids are incredibly prolific. The study, which comes from the Federal Reserve Bank of St. Louis—why St. Louis? who knows?—finds that economists with at least two kids outperformed colleagues who are childless or have only one child. Performance was measured based on the quantity and quality of the economists’ published works.