How do betting exchanges differ from traditional bookmakers, and what integrity concerns do they raise?

• A. They match bets that the operator backs with their own funds.
• B. They only operate in live events.
• C. They allow user-to-user bets and require strong surveillance to prevent manipulation and ensure liquidity.
• D. They have no need for liquidity management

Answer: (C)

The key idea is that betting exchanges are marketplaces where bets are matched between customers, not backed by the house. You can place a back bet or a lay bet, and the platform simply pairs opposing bets, earning commission on net winnings rather than setting the odds itself. Because money moves directly between users, maintaining reliable liquidity and fair pricing becomes essential, and the operator must monitor activity to prevent attempts to distort markets. Strong surveillance helps detect patterns of manipulation, collusion, or other integrity risks, while liquidity management ensures there are enough opposing bets so bets can be matched and odds stay meaningful. This combination—user-to-user betting with the need for vigilance against manipulation and for liquidity—best captures how exchanges differ from traditional bookmakers and the integrity concerns they raise.