PQR manufactures cardboard packaging. It is considering moving into the plastic packaging market. It has established that there are four main plastic packaging manufacturers, who have an aggregate market share of 82%. The current market leader has a share of 26%. The four companies produce products of similar size and quality. The market for plastic packaging has grown by 2% per annum in recent years. Identify which aspect of Porter's five forces would consider this information and identify if the scenario suggests that the force would be high or low. New entrant Low High Power of buyer Power of supplier Substitutes Rivalry and from the scenario, the The force which would consider this information is force would be