A more thorough explanation:

An exchange broker is a person who helps others to buy or sell things like money or goods. They negotiate deals between buyers and sellers, and make sure that both parties get a fair deal.

• A stockbroker who helps investors buy and sell stocks on the stock market.
• A currency broker who helps people exchange one currency for another.
• A real estate broker who helps people buy or sell properties.

These examples illustrate how exchange brokers work in different industries. They all help people to make transactions and negotiate deals. For example, a stockbroker helps investors to buy and sell stocks on the stock market. They use their knowledge of the market to help their clients make informed decisions and get the best possible price for their stocks.