Vstup nové firmy do monopolního prostředí

The present thesis deals with topic of monopolies and ability of new entities to enter mar-kets where such monopoly is present. For a deeper understanding of this field various views on monopolies in history of economic thinking are mentioned in introduction. In connection with possibility of new companies establishing themselves on the market there is analyzed creation and current practice of anti-monopoly legislation. In this part, certain arguments favoring protectionist policies are impugned. On particular examples it is dem-onstrated that more than privileges from the part of the state it is ensuring of free access to a given field which helps to a starting company. The state should be a guarantor of law enforcement and oversee observation of generally binging rules. In the conclusion of the work a difference is also shown between a situation where a monopoly originates in a natu-ral way as a result of exceptionality, which the clients positively value and a monopoly which exists due to support by state. A new company, as a continuous potential competitor, presents a good-quality feedback for a dominant entity and a driving engine for enhancing its efficiency. A free economic competition is shown also here as an effective tool for de-velopment of business, and it is the consumer who derives major benefits from such situa-tion.