- Judge when exclusives or loyalty discounts become business traps, not savings.
- Assess risk using market power, coverage, duration, and real alternatives.
- Recognize when network effects make loyalty discounts more likely to harm competition.
That story sounds like big-company drama. But versions of that contract sit on small business desks every day. A supplier who wants you locked in. A partner who offers a discount with strings. A deal that seems generous until you realize what it costs you.
This article is for founders and small business owners who sign contracts with suppliers, distributors, or large customers. The practical takeaway: before you sign any exclusive deal, check four things. How much of the market does it cover? How long does it last? Can you exit? And does the other side have enough market power to make the whole thing an antitrust risk?
The Discount That Isn’t Really a Discount
Say you run a coffee shop. Your bean supplier offers you 20% off all orders, but only if at least 90% of your beans come from them. Buy a few bags from a competitor and you lose the discount on everything, including the beans you already bought from them. That’s a loyalty discount. It looks like a price break, but it works like a fence. The penalty for shopping around is so steep that you stop looking.
An exclusive contract goes further. Under an exclusive, you literally cannot buy beans from anyone else. Full stop. The supplier might guarantee you a fixed price or priority delivery in return. But if that supplier’s quality drops or a better option shows up, you’re stuck.
Both of these arrangements are between a buyer and a seller. They’re not deals between competitors (those raise a different set of problems). They’re vertical agreements, meaning they run up and down the supply chain, not across it. That distinction matters legally, but the risk to your business is real either way. Many of the common myths founders believe about contracts and business basics make these deals seem safer than they are.
When a Normal Deal Starts Working Against You
Not every exclusive or loyalty discount is dangerous. Most are fine. The deal turns sour when a specific set of conditions line up.
The biggest factor is market power. If the company pushing the exclusive controls a large share of what you need to buy or sell, their contract can wall off your alternatives. A supplier with 15% market share asking for exclusivity is a different situation than one with 70%. The more they dominate, the less room you have to walk away.
How much of the market the contract covers matters just as much. If a dominant player locks up most of the distributors or most of the supply, competitors can’t reach enough customers to survive. They get squeezed out, not because their product is worse, but because the doors are closed.
Long terms make everything worse. A 6-month exclusive with a regional supplier is routine. A 10-year exclusive with the only supplier of a critical input is a trap. Duration gives the dominant party time to cement their position while rivals slowly starve.
Finally, look at alternatives. If rivals have other suppliers, other distributors, other routes to market, an exclusive deal probably won’t kill competition. But if the deal shuts off the only realistic path, the damage compounds fast. Courts call this “foreclosure,” which just means rivals get locked out of the customers or suppliers they need to survive.
These problems get worse in one specific situation.
Think about a local restaurant delivery app that everyone in your town already uses. The more restaurants that join, the more customers download it. The more customers who use it, the more restaurants feel they have to be on it. That self-reinforcing loop is what economists call network effects: a product or service gets more valuable as more people use it.
Now imagine that delivery app offers lower fees to any restaurant that agrees not to list on competing apps. Every restaurant that takes the deal makes it harder for a rival app to get enough listings to be worth downloading. The loyalty discount and the network effect feed each other. The dominant app doesn’t just win on price or quality. It wins because switching becomes pointless for everyone involved. The FTC’s February 2026 analysis laid out exactly this dynamic: loyalty discounts between firms cause real harm when network effects are in play.
This isn’t just a tech-platform problem. Network effects show up anywhere having more participants makes the service more valuable. Local trade associations, industry-specific marketplaces, B2B platforms. If you run a business that depends on a platform or marketplace like this, a loyalty discount aimed at keeping you exclusive deserves extra scrutiny. Founders in regulated or platform-dependent industries, like health tech startups navigating compliance traps, already know how fast a structural disadvantage can become an existential one.
Pipe Fittings, Fake Teeth, and Microsoft
A manufacturer of ductile iron pipe fittings required its distributors to buy exclusively from them. No competitor could get shelf space. The FTC found the company had unlawfully maintained its monopoly by locking rivals out of the domestic market entirely.
The artificial teeth case cuts deeper. The DOJ went after a manufacturer that held at least 75% of the market. That company signed exclusive contracts with key dealers, the ones dental labs and patients depended on. Smaller rivals didn’t just lose sales. They faced higher costs to reach any customer at all, and the time it took to build alternative distribution stretched out so long that competing became nearly impossible. The exclusive deals didn’t make the product better. They just made the walls higher.
Microsoft’s exclusive contracts drew similar scrutiny. The company argued its deals prevented competitors from free-riding on its sales and marketing efforts. Courts rejected that defense, finding the contracts unnecessarily disadvantaged rivals.
Think about whether any of these patterns feel familiar. A dominant supplier that insists its distributors carry no competing products. A large customer that demands you sell only to them. These dynamics aren’t limited to pipe fittings and software. They show up in any industry where one player is big enough to dictate terms.
Most of These Deals Are Fine
The line between a useful exclusive and a harmful one is not as blurry as it seems.
A 1-year exclusive with a regional distributor that helps your small manufacturing company guarantee shelf space? That’s normal. It gives both sides predictability. The FTC and DOJ both recognize that exclusive arrangements can ensure supply, build dealer loyalty, and prevent free-riding on your marketing investment.
The deal crosses the line when it covers so much of the market, for so long, that competitors simply cannot survive.
Short duration, limited scope, real alternatives for rivals. That’s the formula for an exclusive that stays legal and stays useful. If you’re weighing tough contract decisions alongside questions about pricing and structure, those are the kind of hard calls every owner faces in 2026.
Before You Sign That Exclusive
If you’re the smaller player being asked to sign, slow down. A big partner offering a loyalty discount or exclusive deal might be handing you a good price today and a locked door tomorrow. Look at the structure before you look at the savings.
If you’re the one offering an exclusive to lock in a key customer or supplier, the legal risk only kicks in when you have real market power and the deal shuts out a significant chunk of the competition. A niche supplier with 8% market share offering a 1-year exclusive is not going to trigger an FTC investigation. A dominant player locking up 60% of distributors for five years might.
Run any exclusive deal on your desk through these questions:
- How long does this contract last, and can I exit early without a penalty that makes leaving impossible?
- What share of my available suppliers or customers does this deal cover?
- Does the other side control enough of the market that I’d have nowhere else to turn?
- Are there penalty clauses that punish me for buying from or selling to anyone else?
- If this deal went wrong, would I have realistic alternatives within 90 days?
If the contract is long-term, covers a big slice of your market, and the other party holds dominant share, talk to an attorney before you sign. Not as a general precaution. As a specific response to a specific risk pattern. Many of the liability traps that catch LLC owners start with a contract that looked routine at signing.
There’s another option if you’re on the receiving end of harm. If a dominant competitor is using exclusive contracts to shut you out of suppliers or customers, you can file a complaint with the FTC or the DOJ Antitrust Division. It’s free. You don’t need a lawyer, though having clear documentation of how the deal is hurting your ability to compete will strengthen your case. The FTC’s competition guidance page is a good starting point.
A discount that requires you to stop shopping around isn’t a discount. It’s a leash.
