Answer:
Pool
Explanation:
Given that pool is a term in business that is used to describe a form of the agreement made by the members of the pool with the fundamental purpose of retaining powerful control over prices. It involves producers of similar products that wish to standardize the product prizes.
Hence, in this case, a POOL is a group of businesses that make an informal agreement to cooperate in controlling a market or industry.
It would be the development in agricultural knowledge/technology
Development in agriculture enable hunter/gatherer society to shift their behavior. Before this, they had to keep moving from one place to another in order to seek food to live.
After the development in agricultural knowledge/technology, the society now can stay in one exact place for a long period of time and relied on agricultural product as their main source food.
After living in one same place for a long time, the needs to build things to accommodate their living start to arise. They start to built several things and repeat the process every year. In the end, large cities were developed from the initially small hunter/gatherer society.
