Markets for Factors of Production-LOS g 习题精选 2011, resources, describe, between, natural

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Session 5: Economics: Market Structure and Macroeconomic Analysis
Reading 21: Markets for Factors of Production

LOS g: Differentiate between renewable and nonrenewable natural resources and describe the supply curve for each.

 

 

Which statement about renewable and non-renewable resources is most accurate?

A) The supply curve for a non-renewable resource is perfectly elastic and the price is determined by demand for it.

B) Land is considered a renewable resource.

C) The known stock of a non-renewable resource must decrease as the resource is used.

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Land is considered a renewable resource because using it in the present does not prevent its use in the future. The known stock of a non-renewable resource is fixed in the short term, but can increase in the long term as technology makes more of the resource accessible. The supply curve for a non-renewable resource is perfectly elastic at that price, and the quantity supplied is determined by demand.

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Which of the following best describes the elasticities of supply for renewable and non-renewable resources?

Renewable resource

Non-renewable resource

A) Perfectly inelastic Perfectly elastic

B) Inelastic Perfectly inelastic

C) Perfectly elastic Perfectly inelastic

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The supply (flow) of a renewable resource is fixed at any point in time. Therefore the supply is independent of price, or perfectly inelastic. Supply (stock) of a non-renewable resource is perfectly elastic, as the resource is supplied from its known stock at a price equal to the present value of its expected price in the next period.

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The supply of a renewable resource is:

A) independent of price and perfectly elastic.

B) dependent on price and relatively elastic.

C) independent of price and perfectly inelastic.

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The supply of renewable resources over a period of time is fixed. The supply of renewable resources is, therefore, independent of price and perfectly inelastic.

luqian55

thanks a lot