DP Economics
Question 18N.1.HL.TZ0.a
Date | November 2018 | Marks available | [Maximum mark: 10] | Reference code | 18N.1.HL.TZ0.a |
Level | HL | Paper | 1 | Time zone | TZ0 |
Command term | Explain | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 10]
18N.1.HL.TZ0.a
Explain why prices tend to be relatively rigid in oligopolistic markets.
[10]
Markscheme
Answers may include:
- definition of oligopoly
- diagram to show the kinked demand curve with price inelastic demand below the market price and price elastic demand above the market price
- explanation of price rigidities, with reference to the risk of price wars and/or with reference to the effect that a change in price would have on the total revenue of the oligopolistic firm
- examples of industries where there are rigid prices/non-price competition/strategic interdependence.
Marks should be allocated according to the paper 1 markbands for May 2013 forward, part A.


