EXCLUDABILITY: The ability to keep people who don't pay for a good from consuming the good. For some goods, it's very easy (that is, the cost is low) for owners or producers to keep others from enjoying the benefit of a good. Examples of this abound, like candy bars, shoes, houses, computers, and well a bunch of other stuff. Other goods, however, prove more difficult to keep the nonpayers away. Examples of these include oceans, national defense, and fireworks displays. Excludability is one of the two key characteristics of a good (the other is rival consumption) that distinguishes between common-property goods, near-public goods, private goods, and public goods.

     See also | good types | rival consumption | common-property good | near-public good | private good | public good | market failure | externalities |

EXCLUDABILITY, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: November 15, 2025].

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The elasticity of a factor demand curve is affected by four items: (1) the price elasticity of demand for the good produced, (2) the production function technology and elasticity of marginal physical product, (3) the ease of factor substitutability, and (4) the share of the factor's cost relative to total cost. Changes in any of these four items cause the price elasticity of factor demand to change. In other words, the quantity of factor services demanded becomes more or less sensitive to changes in the factor price.

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