Examlex
Please define the following key terms
-Tsar Alexander II
Excludable
A characteristic of a good or service that allows owners or producers to prevent others from using it without permission or payment.
Rival
An entity competing against another in the same market, striving for a greater share of assets, customers, or recognition.
Nonexcludable
A property of a good where it is not possible to prevent individuals from consuming the good, regardless of whether they have paid for it.
Clean Water
Water that is free from pollutants and contaminants, making it safe for human consumption and use.