Essay · 20 min read

The Network Effect: Solving the Chicken or the Egg

Brian Balfour Free Advanced

Balfour, who led growth at HubSpot and founded Reforge, breaks the cold start into the mechanics of how you actually reach liquidity. He is precise about seeding one side, defining your atomic unit, and measuring whether the market is filling up. Read it when you want a growth practitioner's frame rather than a list of anecdotes.

  • Define the smallest unit where your marketplace can feel liquid
  • Seed one side deliberately, then measure the fill rate
  • Liquidity is the metric that tells you the room is not empty

The question it answers

  1. I run a two-sided marketplace. Do I get my first customers by starting with supply or demand, and how do I avoid the empty-restaurant problem?

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