CompanyGraph
How technology, standards, regulation, and customer behaviour can make a once-powerful advantage less relevant.
A Moat Protects a Particular Condition
Scale, network effects, switching costs, brand, exclusive access, and regulation are not interchangeable. Each protects a particular service against a particular alternative. A distribution network protects physical availability; a software lock-in protects a configured workflow; a licence protects authorised access.
The first question in moat erosion is therefore: what exactly is being protected, and what condition made bypass difficult? If the customer’s need moves, the moat can remain intact while losing relevance.
Five Erosion Paths
Field shift moves competition to another interface. A physical distribution advantage matters less when customers can receive the service digitally.
Modularity makes a previously integrated product replaceable component by component. Open APIs, common data formats, and interoperable standards can lower the cost of changing one part.
Substitution begins with a product that is worse on the incumbent’s main measure but better on price, convenience, or access. It can improve before the core customer notices.
Regulation can require portability, open access, or fair licensing. The incumbent may retain the capability while losing exclusivity over it.
Preference and cost change can reduce the value of a brand, a location, or a scale advantage. Inflation, new energy costs, or a different customer generation can change what the old asset is good for.
Open Banking Illustrates Rule-Driven Erosion
Payment-account switching and data access depend partly on the rules that govern interfaces. The European Union’s revised Payment Services Directive created a framework for payment services and access obligations in its market. PSD2 is evidence that regulation can alter the conditions around bank account and payment relationships; it does not prove that every customer will switch or that incumbent banks lose all advantages.
The remaining moat may move to trust, credit underwriting, service, or distribution. Regulation can reduce one switching cost while leaving others intact. An investor who sees only the rule may overstate erosion; one who sees only the old relationship may miss the change.
Encyclopedias Show a Medium Shift
Printed encyclopedias required editorial, printing, and distribution infrastructure. Digital search and collaborative publishing changed the cost and speed of updating knowledge. The old editorial capability did not become worthless overnight, but it no longer protected a physical sales and distribution model in the same way. Britannica’s history records the medium and product context; it does not isolate one cause of the industry’s change.
What to Watch Before the Revenue Falls
- Are customers adopting a different workflow or interface at the edge of the market?
- Can a new standard or API preserve the customer’s data and reduce migration work?
- Which part of the moat is protected by law, and which part depends on current economics?
- Are maintenance, price, or service obligations making the old system less attractive?
- Can the incumbent redeploy its assets, skills, and contracts to the new basis of competition?
Moat erosion is a process, not a headline event. The strongest analysis traces which condition changed, when customers could act, what money and infrastructure the alternative required, and whether the incumbent’s remaining advantages still protect a service customers value.