3
NETWORK EXTERNALITIES
The Facebook Effect

When I first entered the world of online dating, I was immediately drawn to Match.com. I didn’t go there because it had the most attractive user interface, a unique or innovative method for matching partners, or a low price. I went there because I had heard of it and it was the biggest (or very nearly) online dating market.

That may not seem like very good logic. I don’t drive a Toyota Camry, even though it is the best-selling car in America. I don’t shop at Walmart, though it is the nation’s biggest retailer. And I have no plans to move to China, even though it is the largest country in the world. So why did I choose Match.com rather than some cooler, niche site that would fit better with my ...

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