Enables the poor get cheap essential services e.g medical care at low fees for poor patients.

Increased total revenue for the producer since more output is sold.

Income is redistributed when high prices are charged on the rich to subsidize the lower prices charged on the poor.

Charging high prices to high income earners increases the firm's profits hence funds for research leading to improved quality of products.

More revenue is raised by government when it taxes a large volume of goods now sold due to price discrimination.

It helps producers to dispose off surplus and to clear their home markets. This is done say through dumping.

It increases individuals consumption of certain goods and services. This is especially in the case where a high price is charged on the first / few units and a lower price charged on consumption of more units.