The article explores how giving more financial power to local governments affects economic growth in Europe. They studied 27 countries from 1992 to 2017 and found that letting local governments spend more money can help a bit with economic development. But giving them more control over taxes can actually slow down growth. Overall, the impact of decentralization on economic growth is not very clear. The researchers also found that the age and size of a population play a big role in how well a country's economy does. The article suggests that local governments should carefully plan how they use taxes and public money to help their economies grow.