The Concept
Consumer surplus is one of the most useful ideas in economics that most founders never connect to their pricing. It’s simple: it’s the difference between the maximum a customer would have been willing to pay and the price they actually paid. If someone would have happily paid $50 for your product and you charge $30, you’ve handed them $20 of surplus. That’s $20 of value you created and then gave away.
Every founder is leaving some surplus on the table. The question is how much, and whether you’re doing it on purpose.
The Uber Example
Uber’s surge pricing is the clearest real-world demonstration of a business attacking consumer surplus head-on. On a normal Tuesday afternoon, a rider might pay $12 for a trip they’d have paid $20 for — $8 of surplus sitting in the rider’s pocket. But on a rainy Friday night when demand spikes, that same rider would pay $35 to get home, and Uber’s algorithm knows it. Surge pricing moves the price up the demand curve toward what each rider is actually willing to pay in that moment.
This is dynamic pricing as surplus extraction. Uber isn’t charging more because the ride costs more to provide; it’s charging more because the willingness to pay is higher. The algorithm is reading the demand curve in real time and repricing against it.
The Ref’s Call
Clean play — with a caveat. Capturing surplus is legitimate and often smart; flat pricing usually means you’re overcharging your most price-sensitive customers and undercharging your least. But surplus extraction has a trust cost. Riders resent surge pricing precisely because it feels like the meter is reading their desperation. The lesson for founders isn’t “raise prices whenever you can.” It’s: know where your surplus is, decide deliberately how much to capture versus leave as goodwill, and never let the extraction feel like a penalty for needing you. Price to the demand curve, but keep one eye on the relationship.