A contract that allows a retailer to return unsold inventory up to a specified amount, at an agreed upon price is a ?

The procurement process for both direct and indirect materials should work on what?

The purpose of having multiple suppliers for a product is to ?

Supplier performance should be compared based on what?

Supplier characteristics such as lead time, reliability, quality, and design capability that impact the total cost of doing business with a supplier should be considered during the process of what?