Broadcast television is an example of a non-rival good; when a consumer turns on a TV set, this does not prevent the TV in another consumer's house from working. In a lot of cases, public goods are supplied by the government, like national defense and public schooling, but in this situation a public good, such as education, is being supplied by the super teacher, Salman Khan. Private goods: Most goods and services fall into this category and are both rival and excludable.Private businesses produce these goods for the market. Rival and Nonrival Goods. On the other hand, excludable means that the good … Then there are public goods, or non rival and non excludable goods, enter Khan Academy. The Essay on Actions Of The Government And The Increase In Prices. In some cases, public goods are not fully non-rivalrous and non-excludable. Non-rivalrous goods are those goods that can be consumed by the people and the community without affecting the availability of the same goods to others. Economists call such goods rival because consumption of them is competitive in a sense. Most examples of non-rival goods are intangible. Non-rivalry is one of the key characteristics of a pure public good. In contrast, non-rival goods may be consumed by one consumer without preventing simultaneous consumption by others. Nonrival definition: (of goods or resources ) capable of being enjoyed or consumed by many consumers... | Meaning, pronunciation, translations and examples Most goods can only be consumed by one person, or by one person at a time. In case of Non Rival goods the marginal cost of an additional consumer is zero. Non Excludable goods may not be Non-rival in consumption. A typical rival good might be pizza -- although several people can share a pizza, each individual bite can only be eaten by one person. Hence efficient price for using an existing non-rival good is zero because a positive price reduces use and hence benefits without reducing costs. Non-rivalry means that consumption of a good by one person does not reduce the amount available for others. Rival goods are goods whose consumption is limited by being consumed by other individuals. A good may be regarded as non-rival, if, for any given level of production, the marginal cost of providing it to an additional consumer is zero. Public goods have two characteristics: They are non-rival and nonexclusive. 2 pages, 829 words. For most privately provided goods, the marginal cost of producing an additional good is positive. Non-rival, non-excludable goods are public goods. Natural monopoly: Goods that are non-rival but excludable tend to be natural monopolies.These firms have an ATC that is strictly downward sloping. For example Common Property resources like water, timber, coal are goods which are non excludable but are rivalrous in nature as consumption by one individual reduces the availability of these goods to other individuals. Rival, non-excludable goods give way to the tragedy of the commons.