Key Takeaways

  • "Credence goods" are products or services whose quality is hard for buyers to assess, even after they've used them—think medical procedures, car repairs, or collectible cards.
  • Businesses like PSA thrive by becoming the trusted third-party arbiter for these goods, acting as a "trust tax" on an entire industry.
  • Once established, this trust creates a powerful network effect: everyone uses the dominant grader (PSA) because its certification itself adds value to the item.
  • This model is capital-light, doesn't require owning inventory, and can scale to multi-billion-dollar valuations, as seen with Nat Turner's acquisition of PSA.
  • Seek markets where passion exists but structure and objective trust are absent; these are ripe for building a "trust tax" business.

The Hidden Goldmine: Credence Goods

Imagine you're buying a rare Pokémon card, maybe a first-edition Charizard. How do you know it's real? How do you know its condition is truly a '10' and not a '9.5' hiding a tiny scratch? You don't, not really. Even an expert eye might miss something, and your own assessment probably won't hold up on the resale market. This is the problem of "credence goods."

As Shaan Puri explains, “a credence good is basically it's a good that even after you've consumed it, even after you have it, you still don't really know the quality of it.” Beyond collectibles, think medical procedures (did the surgery actually fix everything?), car repairs (was that expensive part truly necessary?), or even obscure legal advice. In these markets, the buyer's lack of expertise means they can't accurately verify quality, even post-purchase.

This is where companies like PSA step in. PSA (Professional Sports Authenticator) became the dominant player in grading collectible cards. By offering an objective, third-party assessment of a card's authenticity and condition, PSA fills a massive trust void. “You need third party trust in these systems where there was no structure,” Puri says, pointing to coins, sports cards, and Pokémon cards. This trust-gap is a goldmine for savvy founders.

Becoming an Industry's "Trust Tax"

PSA's business model isn't just smart; it's almost unfairly beautiful. They don't buy or sell cards. They don't own the inventory. They simply provide a trusted stamp of approval. But that stamp changes everything. When a card is PSA-certified, especially with a high grade like PSA 10, its value skyrockets. This makes PSA “basically a trust tax on an entire industry,” Puri notes. They skim a percentage off every transaction that relies on their certification.

This isn't just about good marketing; it's about a powerful network effect. If you have a valuable card, you're not going to “go to the third rate grader because I can save a little bit on my on grading my card? No way,” Puri states. Why? Because the market accepts PSA's grades as the standard. “If it's PSA certified, PSA 10, that makes my card more valuable. And so the trust sort of compounds and it becomes the known unit of account on the street.” Everyone uses PSA because everyone else uses PSA, solidifying its dominant position.

This capital-light model—they don't hold assets, just provide a service—makes it incredibly profitable and scalable. Nat Turner, a serial entrepreneur, recognized this profound dynamic and recently acquired PSA. It’s a testament to how becoming the undisputed, trusted third party in a credence goods market can build a multi-billion-dollar enterprise. PSA also leverages its position to offer ancillary services, like secure storage, further cementing its role as the industry's central authority.

What to Do With This

Look for markets simmering with passion but lacking a clear, trusted standard. Identify where consumers or businesses struggle to assess quality, even after a purchase. Then, devise a strategy to become the neutral, third-party authority that provides that missing trust. Think: what emerging niche lacks a Yelp for quality, a Carfax for authenticity, or a PSA for verification? Build the trust layer, and you can effectively tax an entire industry.