A mining company owns the only land in a country that contains a rare mineral used to produce electric car batteries. Other firms cannot make these batteries because they cannot access this mineral.What type of barrier to entry is this?

Question

BlackTom AI · Accepted Answer

Ownership of a key resource creates exclusive control over an essential input that other firms need to produce a good or service.

1) Relevant knowledge points and concepts
- Barrier to entry: any obstacle that makes it difficult for new firms to enter a market.
- Common types: legal protections (patents, copyrights), ownership of a key resource, economies of scale (cost advantages for large incumbents), and high start-up costs (large fixed costs to begin operations).
- “Key resource” barrier: when a firm controls a scarce input (land, mineral, technology, distribution network) necessary for production, preventing rivals from producing the same product.

2) Step-by-step reasoning
- Step 1: Identify the scarce input in the vignette: a rare mineral used to produce electric car batteries.
- Step 2: Identify who controls it: the mining company owns the only land in the country that contains this mineral.
- Step 3: Determine the effect on rivals: other firms cannot access the mineral, so they cannot produce the batteries.
- Step 4: Match this situation to the barrier type: exclusive control of an essential input = ownership of a key resource.

3) Calculations / intermediate logical steps
- No numerical calculations are needed. Logical intermediates: scarce input exists → single firm controls sole source → rivals lack access to necessary input → entry is blocked.

4) Why the correct answer is correct
- Because the restriction on entry comes directly from exclusive control of the essential mineral, this is the textbook example of a barrier created by ownership of a key resource.

5) Why the other options are incorrect
- a. Legal protections: would involve patents/copyrights granting legal exclusivity, which is not described here.  
- c. Economies of scale: refers to cost advantages from large-scale production, not control of an input.  
- d. High start-up costs: could deter entry but the scenario specifies lack of access to the mineral, not prohibitively high initial costs.

6) Conclusion
This situation is best classified as ownership of a key resource (option b), which matches the provided answer.

A mining company owns the only land in a country that contains a rare mineral used to produce electric car batteries. Other firms cannot make these batteries because they cannot access this mineral.What type of barrier to entry is this?单项选择题

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