Clustering select one: a. takes place when new firms enter regions already thick with other firms in the same or similar industries. b. occurs when there is a single firm in an economy that can charge different prices for the same product. c. occurs when government resources are diverted toward one particular sector of an economy.

Letter a is correct. Takes place when new firms enter regions already thick with other firms in the same or similar industries.

Explanation:

Clustering occurs when there is a communication and collaboration of certain companies with similar characteristics and located in the same region, which generates greater organizational efficiency between each one.

It was Michael Porter who defined the concept of Cluster, and set three central objectives for companies using this arrangement:

The biggest benefits added to this business arrangement strategy are: cost reduction, technology diffusion, entry into new markets, new products, overcoming legal barriers and stimulating the economic and social development of the region where the companies are located.

business modeling is correct

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy