A letter that saved lives

The New York Times: The I.R.S. Sent a Letter to 3.9 Million People. It Saved Some of Their Lives. Article published: Dec 10, 2019 IB Economics syllabus: microeconomics (government intervention, nudge economics) While this article is not suitable for an IB economics IA (partly because it's too long, and partly due to the topic it covers), [...]