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Disintermediation, also called platform leakage, is when a buyer and seller meet on your marketplace but transact elsewhere. They swap phone numbers or email addresses, agree a price, and pay each other directly. Your platform did the hard work of matching them, then gets paid nothing for it. For marketplace operators, leakage is the quiet tax on every introduction the platform makes.
A marketplace sells one thing above all else: the introduction. First, you spend money bringing buyers in, and time bringing sellers in. Then you charge a slice of whatever happens next. Disintermediation is what happens when someone takes the introduction and skips the slice.
For example, think of a real estate agent who shows a couple around a house. The couple loves it, then quietly calls the owner and buys it directly. The agent did every useful thing in the deal and earned nothing. That is leakage in one sentence.
On a marketplace it usually starts in the messaging thread. A buyer asks a sizing question, and the vendor answers with a mobile number attached. Sometimes the leak arrives on paper instead. Think of a business card, a website address, or a code tucked into the box.
The second order is where it really bites. First orders tend to stay on-platform because the buyer does not trust the seller yet. By the third order, the two sides know each other well. At that point your platform starts to look like a toll booth on a road they already know.
Leakage needs two willing people, and money is what makes them willing. In practice, the vendor keeps the take rate instead of handing it over. Plus, the buyer gets a slice of that saving as a discount. Both walk away better off, and only you pay for it.
The research backs this up. Two economists studied a large on-demand delivery platform that began charging its drivers a commission. Detected off-platform transactions climbed from 3.92% to 7.87%, roughly doubling. As a result, customers pocket about half the commission the seller saves.
That is the uncomfortable part of pricing a marketplace. Every point you add to your vendor commission also adds a reason to dodge it. In practice, raising fees lifts revenue per order and shrinks the number of orders you get to see.
Marketplaces are no longer a niche corner of online retail. Forrester has projected that two-thirds of global business-to-consumer e-commerce would flow through them. A leak in that model is not a rounding error.
Meanwhile, the pressure runs in one direction only. Payment tools have made direct selling trivially easy for any vendor with a phone. A weaver who once needed a shop can now take a card payment from a link in a text message.
On top of that, the services that made your platform special have become commodities. Split payments, shipping labels and review widgets are all available off the shelf. That leaves discovery and trust as the two things you still genuinely own.
Here is the trap. A leaked order is, by definition, an order your system never recorded. There is no row in the database, no payout line, and no dispute ticket. Your dashboard shows a quiet month, not a stolen one.
So operators end up reading proxies instead. Watch for conversations that run long and then end with no order. Watch for vendors whose message volume holds steady while their sales slide. Watch for buyers who visit one vendor repeatedly and never check out.
Cancellations are another tell. In that same delivery study, cancellation rates rose from roughly 24% to 29% once the commission landed. Canceling was simply how each pair moved the job offline. On a product marketplace, the equivalent signal is a strange run of abandoned carts on one vendor’s storefront.
Imagine a small marketplace for handmade home textiles called Loomcraft. It hosts 60 independent weavers and handles 400 orders a month. The average order value is $120, so monthly gross merchandise value sits at $48,000.
Loomcraft charges a 10% commission, which brings in $4,800 a month. The owner wants to fund a bigger marketing push. So she raises the take rate to 15% and pencils in $7,200 instead.
Now apply the delivery-platform finding to Loomcraft. Leakage roughly doubles after the fee change, so about 4% of orders move off-platform. That is 16 orders a month, or $1,920 in GMV she never sees. At 15%, month one costs her $288 in lost commission.
That number looks survivable, and this is exactly how leakage hides. The real damage is that those 16 pairs now hold each other’s contact details. Next quarter they reorder directly, and the quarter after that too.
Run it forward a year and Loomcraft is missing several hundred orders it once would have processed. Meanwhile the fee rise did lift revenue on every order she still sees. Net-net, she gained less than the spreadsheet promised. Worse, the gap never shows up anywhere in her reporting.
Replacing those buyers is the expensive part. Harvard Business Review puts new-customer acquisition at five to 25 times the cost of keeping one. As a result, every leaked pair quietly pushes Loomcraft’s customer acquisition cost higher.
These two look almost identical in a revenue chart, yet they could not be more different underneath. First, vendor churn means a seller leaves. Their listings come down, their vendor onboarding record goes cold, and you can count exactly who walked.
By contrast, disintermediation is the opposite behavior. The vendor stays put. They keep their listings live, keep collecting free introductions from your traffic, and route the money elsewhere. From your side it looks like a loyal seller having a slow patch.
The fixes differ too. Churn responds to fairer marketplace fee structures, faster payouts, and more demand. Leakage responds to making the on-platform path genuinely worth paying for, backed by clear rules on steering buyers away.
There is a reporting trap here as well. Churn shows up as a vendor count that drops. That is easy to chart and easy to explain to a board. Leakage, by contrast, shows up as nothing at all.
By contrast, the two problems can feed each other. A vendor who leaks successfully for months eventually asks why they are still listing with you. Left alone, quiet leakage often turns into loud churn.
In marketplace circles, yes. Disintermediation is the older economics word for removing a middleman from a supply chain. Platform leakage is the operator’s word for that same thing happening to their own business.
In practice, researchers tend to say disintermediation, while founders and product teams say leakage. Some teams also call it circumvention, or simply going off-platform. In short, they all describe a buyer and seller who met through you and then paid around you.
Not completely, and chasing zero leakage usually costs more than it saves. What you can do is make the detour not worth the trouble. Keep your fee proportionate to the value you add, then put real benefits behind staying on-platform.
After that, set the rules in writing. A vendor agreement is the right home for a clause on contact-sharing and off-platform sales. Pair it with message filtering that flags phone numbers and email addresses before they are sent.
Enforcement should be proportionate, though. Most operators start with a warning, then reduce a repeat offender’s search visibility. Banning a productive vendor over one shared phone number usually costs you more supply than it saves in fees.
Protection, mostly. Baymard Institute found that 19% of shoppers abandon a purchase because they distrust the site with card details. Even so, wiring money to a stranger is a far bigger leap.
So lean on what a direct deal cannot offer. Hold funds in escrow until delivery, handle disputes and refunds centrally, and keep every order in one history. For most marketplaces, buyer protection is the single strongest anti-leakage feature they own.
A marketplace is worth its fee only for as long as the transaction is better inside it than outside it. Disintermediation is the market telling you that gap has closed. Treat it as a product signal rather than a discipline problem, and you fix the cause instead of the symptom.
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