IB Economics HL 2.11.4 Monopoly Question Bank
Practise IB Economics HL 2.11.4 by applying monopoly concepts to exam-style questions.
- Syllabus
- First assessment 2022
- Course
- Economics HL
- Level
- HL
Practise IB Economics HL 2.11.4 by applying monopoly concepts to exam-style questions.
Economists agree that travel by train, instead of by plane or car, should be promoted in Europe because of environmental issues. However, the growth of passenger rail travel in Spain has slowed down. During 2013, millions of passenger-kilometres* travelled on railways in Spain increased by 6.72 %, while in 2019 the annual increase only amounted to 1.36 %.
* passenger-kilometres measure the distance travelled by all passengers over one year
Figure 4 illustrates the monopoly-market structure for tickets on a train between Madrid and Barcelona in Spain. MC is marginal cost, AC is average cost, D is the demand for tickets and M R is marginal revenue.

Figure 4
Outline one reason why a railway is a natural monopoly.
Level
Marks
0
The work does not meet a standard described by the descriptors
below.
1
The written response is limited.
For stating one of the following:
- economies of scale
- high fixed costs
- high track laying / train purchasing costs.
2
The written response is accurate.
For outlining one of the following:
- AC falls throughout the relevant section of the demand curve
- one firm can supply the whole market most efficiently at lower
AC
- fixed costs (of establishing a network) are high while the
marginal cost (of carrying an additional passenger) is low -hence AC is falling.