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 - http://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.

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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?