Answer:
We can make the chain supermarkets buy goods in bulk.
Step-by-step explanation:
In the given scenario the chain supermarkets have been demanding heavy discounts on goods that you are selling to them.
Also you do not want the eventual price to the speciality stores to drop.
The solution will be to sell products in bulk to the chain supermarkets. This will meet their demand for larger discounts as price per unit of product will be lower with bulk purchase.
Then the speciality stores can still buy in small quantities for higher price.
This will accommodate the requirements from both stores.