This refers to an economic theory which views resources like oil and other minerals as assets that are created through the application of human effort. This is in contrast to the typical view of environmentalists who see resources as that which are provided by nature, limited in their overall supply, and prone to be used till they are no longer available. Resourceship considers the supply of resources to be dependent on the capability of human beings to tap them, which in turn depends on factors like property rights which shape human incentives. The theory was proposed by the economist Erich Zimmermann.