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In economics, barriers to entry are obstacles that make it difficult for new firms to enter a market. These barriers can be natural, arising from market characteristics, or artificial, imposed by existing firms or governments.1

Natural barriers often occur in monopolistic markets where established firms have lower costs or buyer preference, making it hard for newcomers to compete profitably. Artificial barriers can include practices like predatory pricing or government regulations such as licenses and patents.1

All barriers to entry ultimately lead to a decrease in market competition. The ease of entry is a key factor in determining market structures, alongside seller concentration and product differentiation.12

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