Role of Stock Exchanges in Financial Markets

Steps:

• Identify the primary purpose of a stock exchange as a trading platform for securities.
• Review each option to match it against standard functions of stock exchanges.
• Eliminate options related to banking or monetary policy roles.
• Confirm the option that directly describes share trading.

Why B is correct:

• A stock exchange functions as a regulated marketplace where investors buy and sell shares of publicly listed companies, facilitating capital allocation per financial market definitions.

Why the others are wrong:

• A: Lender of last resort is the central bank's role, not the stock exchange's.
• C: Short-term loans are provided by banks or money markets, not stock exchanges.
• D: Interest rates are set by the central bank, outside stock exchange authority.

Final answer: B