Anu Hariharan is a Partner at Y Combinator. She was previously a partner at Andreessen Horowitz. Check out this study Anu put together on network effects - a16z.com/2016/03/07/all-about-network-effects/ Anu and Craig go over the core learnings from her research, discuss examples, and share advice for entrepreneurs. --- 0:10 - Anu's background. 0:50 - What is a network effect? 1:35 - What's the difference between a network effect and growth? What is virality? 3:45 - What's a good example of virality? 4:55 - Airbnb's word of mouth growth. 5:48 - How product decisions influence growth. 6:29 - Facebook's focus on engagement for long-term growth. 8:40 - What are effective tactics for growing a consumer product today? 11:38 - Two ways to test for a network effect: barriers to entry for competitors and barriers to exit for users. 13:06 - Are businesses with network effects winner-take-all? 13:45 - What will happen with Uber and Lyft? 16:40 - Will self-driving cars create a monopoly? 18:29 - What other markets have weak network effects? 19:05 - Will international messaging apps gain traction in the US? 20:44 - Can small improvements to your product create a network effect? 23:00 - Will there eventually be only one messaging app? 23:50 - What should founders building a product with a network effect ask themselves? 24:20 - Are you a network, a marketplace or a platform? 25:25 - Questions to ask yourself if you're building a network. 27:43 - Questions to ask yourself if you're building a marketplace. 28:35 - Tips on getting over the chicken/egg problem. 31:22 - Questions to ask yourself if you're building a platform. 32:40 - Find your money side and your subsidy side. 33:37 - If I want to learn more about network effects, what should I do?

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