Brokers that exist for the purpose of exchanging listing information is known as what?

The correct answer is Multiple Listing Service. A Multiple Listing Service (MLS) is a cooperative system used by real estate brokers to share information about properties available for sale. By participating in an MLS, brokers can access a centralized database that includes detailed listings, enabling them to assist their clients in buying or selling homes more effectively. This collaboration enhances the visibility of properties and increases the chances of quick sales since multiple brokers can market the same listings to a wider audience.

The other terms do not accurately capture the nature or functionality of such a cooperative system. For instance, some options suggest concepts that might imply unfair practices or limit competition, which does not align with the cooperative spirit of an MLS. Instead, the MLS is designed to support transparency and provide comprehensive resources for all participating members, ensuring fair access to listing information for potential buyers.