What is the potential impact of insider information on betting markets?

• A. It creates fair profits for all bettors
• B. It has no effect if kept private
• C. It can create unfair profits, distort odds, and undermine market integrity
• D. It improves market efficiency

Answer: (C)

Insider information creates information asymmetry in betting markets: some participants know more about an event than the public. Those with the inside scoop can place bets before the new facts are reflected in odds, capturing profits ordinary bettors can’t access. As a result, the odds shift to reflect this anticipated outcome, distorting pricing and reducing the expected value for most players. This undermines market integrity and trust, since bets aren’t reflecting fair, public information, and bookmakers can face reputational and regulatory concerns. Even if the information stays private, its existence means the market isn’t truly fair or efficient, because outcomes aren’t priced by common knowledge alone.