身边的经济学·社会常识英语30篇（2）

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网络效应与赢家通吃市场

When more users join a platform, its value rises for everyone already on it.
This self-reinforcing growth often leads to one firm dominating the entire market.
Examples include social media networks, operating systems, and payment apps with widespread adoption.
Smaller competitors struggle because they cannot match the user base or data advantages.
Regulators sometimes intervene when dominance reduces innovation or raises prices unfairly.
Firms invest heavily in early growth to trigger network effects before rivals catch up.
Consumers benefit from convenience but may face fewer choices over time.
Switching to alternatives becomes costly once habits and connections are established.
The effect is strongest where interoperability between platforms remains limited.
Understanding this helps explain why some tech markets rarely support multiple winners.