In an oligopolistic market, competing firms monitor each other's behavior and coordinate their prices and output without any formal agreement or direct communication. What sort of collusion is this?
Overt collusion
Explicit collusion
Tacit collusion
Perfect collusion
42 exam-style questions on OCR A Level Economics Market structures, covering Perfect competition, Monopoly, Monopolistic competition, Oligopoly, and Contestable markets. Each one has a worked solution and a mark scheme showing where the marks go.