Answer: The Robinson–Patman Act of 1936 prohibits this practice where , Taymen charges more for its products on the West Coast than in other parts of the United States.
The Robinson–Patman Act of 1936 forbids anti-competitive practices by producers, such as price discrimination.
Therefore, if Taymen charges more for its products on the West Coast than in other parts of the United States. It is violating the Robinson–Patman Act of 1936.