Entry Barriers and Constraints on Monopoly | A-Level & IB Economics

In this video we cover two aspects of monopoly. Firstly, entry barriers that can protect the market share of businesses with monopoly power. Secondly, a quick look at some of the main limits or constraints on the market power of a monopoly seller.
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[@shoufanhu3088]

thank you very much, I am doing my economic essay, which discussed monopoly power, this video eliminated my confusions about how constraining monopoly power.