market
share---Refers
to the percentage an entity has of a particular good or service in the global
market. Not all large market share corporations are bad
and some are very supportive of their crews and good to their customers. The cost benefits of increasing returns
to scale experienced by a large technology firm may
indeed be passed onto customers. Knowledge goods carry positive externalities.
However, large market share firms could create negative externalities and they could also engage in price collusion, basically leaving the invisible hand and the majority of the population in great distress. Monopolies and oligopolies exist where smaller firms producing and distributing certain goods and services cannot compete, or may not even get started because of long term, large capital requirements. They also exist where some sort of standard, trend or supporting infrastructure that can process the whole is necessary and may not be provided for otherwise
However, large market share firms could create negative externalities and they could also engage in price collusion, basically leaving the invisible hand and the majority of the population in great distress. Monopolies and oligopolies exist where smaller firms producing and distributing certain goods and services cannot compete, or may not even get started because of long term, large capital requirements. They also exist where some sort of standard, trend or supporting infrastructure that can process the whole is necessary and may not be provided for otherwise