History
Federalism and the Devolution of Policy Authority
Quick fact
In the United States, states can set their own drinking ages, but the federal government can pressure them to raise it by withholding highway funding. This shows that federalism is not just about fixed rules but about negotiation and incentives.
Why this is interesting
Have you ever wondered why a speed limit can change from one state to another, or why some countries have regional parliaments while others don't? The answer lies in how a country decides who gets to make the rules.