Market power Definition
In economics, market power (sometimes called monopoly power) is a market failure which occurs when one or more of the participants has the ability to influence the price or other outcomes in some general or specialized market. The most commonly discussed form of market power is that of a monopoly, but other forms such as monopsony, and more moderate versions of these two extremes, exist. Market participants that have market power are sometimes referred to as "price makers", while those without are sometimes called "price takers".