What are some of the factors that might influence how important purchasing is to the success of an organization? cost, and how stead the supply is?

This was displayed on the said source. It cited connections to different aspects that show the importance of purchasing as a social responsibility. The center is mainly the Buyer's Relationship Commitment where it directs to the cooperation between the Buyer and Supplier. This relationship develops to trust, which is important to the business. It also pointed to the relationship to have a trusted and performing supplier.

Source: Purchasing’s Contribution to the Socially Responsible Management of the Supply Chain

https://www..org/files/sr/capsarticle_purchasingscontribution.pdf

Earn positive economic profit in the long run if it can maintain barriers to entry, assuming no changes in costs or market demand