I believe you’re looking for u00ab collective bargaining u00bb, though this is more typically applied to labor negotiations than outright purchases.

There are many different terms that could apply and certainly @Little Eva’s co-op are one of them. How do I join a buy or sell consortium if I have a bit more buying power?

^{_{Publishing Executive,}}

a consortium of 20 carton manufacturers, have banded together to increase their purchasing power. ^{_{The Print Suppliers Group}}

Collaborative Purchasing :

Collaborative purchasing reduces transaction and information costs associated with procurement. ^{_{In the United States, a}}

Group Purchasing Organization (GPO) is

an entity that is created to leverage the purchasing power of a group of businesses to obtain discounts from vendors based on the collective buying power of the GPO members. The Center for College Affordability (ACAF) _^Wikipedia

Co-op :

Progressive Affiliated Lumbermen (PAL) is a member owned co-op. Established in 1934 and incorporated in 1937, PAL was started by 7 independent lumber dealers with the vision to combine their purchases to increase their buying power. _{^{National Buying Power}}

purchasing coalition: Geographical

purchasing coalitions began forming roughly 10 years ago in order to combine purchases of the most commonly used medical supplies such as exam gloves, syringes, and hospital gowns The _{^{Harvard Business Review purchasing}}

alliance: Seven systems

that include 25 hospitals in New Jersey and Eastern Pennsylvania are banding together in an alliance seeking benefits without the complications of merging assets (…) a kind of affiliation that does away with formal integration, and instead focuses on managing population health and increasing their joint purchasing power. As I said

before, modern health care is a matter of modernization.

There are many different terms that could apply and certainly @Little Eva’s co-op are one of them. How do I join a buy or sell consortium if I have a bit more buying power?

^{_{Publishing Executive,}}

a consortium of 20 carton manufacturers, have banded together to increase their purchasing power. ^{_{The Print Suppliers Group}}

Collaborative Purchasing :

Collaborative purchasing reduces transaction and information costs associated with procurement. ^{_{In the United States, a}}

Group Purchasing Organization (GPO) is

an entity that is created to leverage the purchasing power of a group of businesses to obtain discounts from vendors based on the collective buying power of the GPO members. The Center for College Affordability (ACAF) _^Wikipedia

Co-op :

Progressive Affiliated Lumbermen (PAL) is a member owned co-op. Established in 1934 and incorporated in 1937, PAL was started by 7 independent lumber dealers with the vision to combine their purchases to increase their buying power. _{^{National Buying Power}}

purchasing coalition: Geographical

purchasing coalitions began forming roughly 10 years ago in order to combine purchases of the most commonly used medical supplies such as exam gloves, syringes, and hospital gowns The _{^{Harvard Business Review purchasing}}

alliance: Seven systems

that include 25 hospitals in New Jersey and Eastern Pennsylvania are banding together in an alliance seeking benefits without the complications of merging assets (…) a kind of affiliation that does away with formal integration, and instead focuses on managing population health and increasing their joint purchasing power. As I said

before, modern health care is a matter of modernization.