What factors can change trade discount rates?

Answer 1

1. Size of vendor
2. Payment/delivery track record
3. Credit rating of vendor
4. Number of substitutes/suppliers (i.e. do they NEED the business and be hurt if they could get supply)
5. Interchaneability of the product/service (i.e. will a large discount lock them into using your good/service indefinitely, is the buyer just price sensitive and can go to anybody?)