A common property resource is a resource that is owned by a group of individuals or entities, rather than by a single individual or entity or by the government.

The tragedy of the commons is the situation in which a common property resource is overused and depleted, because each individual user has an incentive to use the resource as much as possible, without regard to the consequences for the other users.

Common property resources are typically non-rivalrous, meaning that one person's use of the resource does not prevent others from using it. For example, a fish in the ocean can be caught by one person without preventing others from catching fish.

Forests are an example of a common property resource, because they are owned by a group of individuals or entities, rather than by a single individual or entity or by the government. Forests are also non-rivalrous, meaning that one person's use of the forest does not prevent others from using it.

All of the above are challenges associated with managing common property resources. It is difficult to exclude people from using the resource, because it is typically non-excludable. It is also difficult to monitor the use of the resource, because it is often difficult to observe how much each individual is using the resource. Finally, it is difficult to enforce rules and regulations governing the use of the resource, because it is often difficult to catch people who are violating the rules.

All of the above are potential solutions to the tragedy of the commons. Privatization of the resource can help to solve the problem by giving individuals or entities an incentive to manage the resource sustainably. Government regulation of the resource can also help to solve the problem by setting limits on the use of the resource and enforcing those limits. Community-based management of the resource can also help to solve the problem by giving local communities a stake in the management of the resource.

Externalities are not a characteristic of a common property resource. Externalities are costs or benefits that are imposed on someone who is not directly involved in the production or consumption of a good or service.

A public park is an example of a common property resource because it is owned by the government and is non-excludable and non-rivalrous.

All of the above are potential solutions to the tragedy of the commons. Privatization of the resource can help to solve the problem by giving individuals or entities an incentive to manage the resource sustainably. Government regulation of the resource can also help to solve the problem by setting limits on the use of the resource and enforcing those limits. Community-based management of the resource can also help to solve the problem by giving local communities a stake in the management of the resource.

All of the above are characteristics of the tragedy of the commons. Overuse of the resource occurs when individuals use the resource more than is sustainable. Depletion of the resource occurs when the resource is used up or destroyed. Inefficient use of the resource occurs when the resource is not used in a way that maximizes its value.

All of the above are potential consequences of the tragedy of the commons. Environmental degradation can occur when the resource is overused or depleted. Economic decline can occur when the resource is no longer available or when it is no longer used efficiently. Social conflict can occur when different groups of people compete for access to the resource.

All of the above are examples of tragedies of the commons. Overfishing of a fish stock occurs when too many fish are caught, leading to the depletion of the fish stock. Deforestation of a forest occurs when too many trees are cut down, leading to the loss of the forest. Pollution of a river occurs when too much pollution is discharged into the river, leading to the degradation of the river.

All of the above are potential solutions to the overfishing of a fish stock. Imposing a quota on the number of fish that can be caught can help to prevent the fish stock from being overfished. Closing the fishery for a period of time can help to allow the fish stock to recover. Requiring fishers to use more selective fishing gear can help to reduce the bycatch of non-target species.

All of the above are potential solutions to the deforestation of a forest. Imposing a ban on logging in the forest can help to prevent the forest from being cleared. Requiring loggers to replant trees after they have been cut down can help to ensure that the forest is regenerated. Providing economic incentives to landowners to keep their forests intact can help to make it more profitable for landowners to keep their forests intact than to clear them for other uses.

All of the above are potential solutions to the pollution of a river. Imposing a tax on polluters can help to discourage pollution. Requiring polluters to install pollution control equipment can help to reduce the amount of pollution that is discharged into the river. Providing economic incentives to polluters to reduce their pollution can help to make it more profitable for polluters to reduce their pollution than to continue polluting.