Crowding out (economics) facts for kids
For example, if the government buys more stuff, it may have to borrow more. By borrowing more there will be a higher interest rate (see supply and demand). This will make it harder for other companies and people to borrow. The government is said to "crowd out" the market.
In Spanish: Efecto desplazamiento para niños
Crowding out (economics) Facts for Kids. Kiddle Encyclopedia.