Money is an economic resource referred to as capital.

Economic Resource

Assets, materials, or inputs used to produce goods and services and satisfy human wants, including land, labor, capital, and entrepreneurship.

Capital

Man-made physical objects (factories, roads) and intangible ideas (the recipe for cement) that do not directly satisfy human wants but which help to produce goods and services that do satisfy human wants; also called capital goods. One of the four economic resources.