Which economic model is used to manage resources that cannot be depleted by consumption?

The Public Goods Model is utilized to manage resources that cannot be depleted by consumption, such as clean air, national defense, and public parks. These resources are characterized by non-excludability and non-rivalry, meaning that one person's use of the good does not diminish the ability of another person to use it. Because of these characteristics, it is not feasible for private markets to provide these goods adequately, leading to potential underproduction or complete absence of these resources in a market setting.

In the context of economics, the Public Goods Model emphasizes the importance of collective action and government involvement to ensure that these resources are maintained and accessible to all. For instance, since individuals cannot be excluded from benefiting from a public good, it requires a system of funding typically through taxation to ensure that they are provided and sustained over time. This makes the Public Goods Model essential for managing resources that inherently cannot be depleted regardless of the level of consumption.

The other models offered, while they have their places in resource management, do not specifically address resources that cannot be used up in the same way as public goods.