The United States is a developed country and has the world's largest national economy, benefiting from an abundance of natural resources and high worker productivity.
The economy is fueled by an abundance of natural resources and high worker productivity. The United States is a developed country and has the world's largest national economy.
The United States is a developed country and has the world's largest national economy. The economy is fueled by an abundance of natural resources and high worker productivity.
The United States is a developed country and has the world's largest national economy. The economy is fueled by an abundance of natural resources and high worker productivity.