Let's take an example to illustrate this principle: travelling in France and in China.
When you take the train France you can benefit from reduced prices.
These prices reduction are based on different motives:
- Some of the prices offered are based on the equality principle.
You pay less if you are in a difficult situation: if young a child, if you are old above 60 or 65, if you are crippled if you are unemployed.
- Some of the prices offered are based purely on a commercial logic.
You pay less if you book a train during the day when trains can remain empty.
- Some of the prices offered are based on the nation.
You pay less if you are in the army.
In China: no principle of equality?
I noticed that the equality principle doesn't seem to exist.
However it should be a motive for price reduction! After all China is a Communist country.
Even though in China you can travel at many different prices, these offers are not based on the equality principle. Beijing simply wants to provide cheaper traveling for the poor people. Thus you can: take the plane, take the fast train, take the slow train, take the slow train without a sit.