This book surprised me. While aimed at a lay audience, it covers moats in surprising detail. First it explains what moats are not (and what things are commonly mistaken for moats). Then it categorizes moats into several types and sub-types. It also discusses how moats erode and how to find moats.
In each section, I found a number of insights and useful comments, most of which are copied below (apologies for poor formatting / editing):
MISTAKEN MOATS
In my experience, the most common “mistaken moats” are great products, strong market share, great execution, and great management. These four traps can lure you into thinking that a company has a moat when the odds are good that it actually doesn’t.
TYPES OF MOATS
Intangible assets
As economic moats, they all function in essentially the same way—by establishing a unique position in the marketplace. Any company with one of these advantages has a mini-monopoly, allowing it to extract a lot of value from its customers.
Brands
One of the most common mistakes investors make concerning brands is assuming that a well-known brand endows its owner with a competitive advantage.
A brand creates an economic moat only if it increases the consumer’s willingness to pay or increases customer captivity.
Brands cost money to build and sustain, and if that investment doesn’t generate a return via some pricing power or repeat business, then it’s not creating a competitive advantage.
Ask whether the company is able to charge a premium relative to similar competing products. If not, the brand may not be worth very much.
the ability to brand a true commodity product is relatively rare—most brands are attached to differentiated products
The big danger in a brand-based economic moat is that if the brand loses its luster, the company will no longer be able to charge a premium price.
Patents
patents have a finite life
Legal maneuvering can sometimes extend the life of a patented Product
Patents are also not irrevocable
be wary of any firm that relies on a small number of patented products for its profits, as any challenge to those patents will severely harm the company and will probably be very hard to predict.
The only time patents constitute a truly sustainable competitive advantage is when the firm has a demonstrated track record of innovation that you’re confident can continue, as well as a wide variety of patented products. (Think of 3M)
Regulatory licenses
regulatory licenses that make it tough—or impossible—for competitors to enter a market. Typically, this advantage is most potent when a company needs regulatory approval to operate in a market but is not subject to economic oversight with regard to how it prices its products.
a company that can price like a monopoly without being regulated like one (The bond-rating industry)
sometimes a collection of smaller, hard-to-get approvals can dig an equally wide moat
Switching costs
You find switching costs when the benefit of changing from Company A’s product to Company B’s product is smaller than the cost of doing so.
companies that benefit from switching costs can be hard to find because you need to put yourself in the customer’s shoes to really understand the balance between costs and benefits. And, like any competitive advantage, switching costs can strengthen or weaken with time.
one broad category of switching costs, which you might think of as companies that benefit from tight integration into their clients’ businesses.
it becomes part and parcel of their daily operations, and untangling it from their business to start afresh would be costly, and possibly risky as well.
This type of competitive advantage isn’t limited to just service and software companies. Precision Castparts that sells high-tech, superstrong metal components used in jet aircraft engines and power-plant turbines. Think for a minute about the low tolerance for failure in these kinds of products.
engineers actually work together with customers when they design new products.
Look at the cost/benefit balance. The only benefit of switching to a new supplier would likely be monetary, as long as the current supplier keeps up its quality standards. Customers would need to find a supplier of similar reliability if they wanted to save money by switching.
The explicit cost is meaningful—the new company would need to spend time getting to know the new products as intimately as it knows the existing ones—but the real cost in this case is risk. Given the incredibly low tolerance for failure, it doesn’t make sense to try to shave the production cost if it increases the risk of product failure. It would take only one high-profile failure to seriously damage the company’s reputation, which would definitely hurt future sales.
switching costs show up in all kinds of industries.
Switching costs can be effective when explicit cost of switching is low if most people perceive the benefits of switching as uncertain.
very hard many for consumer-oriented firms, such as retailers, restaurants, packaged-goods companies to create moats around their businesses. That’s because low switching costs are the main weakness of these kinds of companies. You can walk from one clothing store to another, or choose a different brand of toothpaste at the grocery store, with almost no effort whatsoever.
Some can do it through economies of scale and some can create moats by building strong brands—but in general, consumer-oriented firms often suffer from low switching costs.
Switching costs can be tough to identify because you often need to have a thorough understanding of a customer’s experience—which can be hard if you’re not the customer. But this type of economic moat can be very powerful and long-lasting
Switching costs come in many flavors—tight integration with a customer’s business, monetary costs, and retraining costs, to name just a few.
Network effects (a special type of switching cost)
the value of their product or service increases with the number of users Network based businesses tend to create natural monopolies and oligopolies.
“Of networks, there will be few.”- Brian Arthur
the very nature of the network effect means that there won’t be a very large number of businesses that benefit from it, given the propensity of networks to consolidate around the leader.
the network effect is much more common among businesses based on information or knowledge transfer than among businesses based on physical capital. This is the case because information is what economists call a “nonrival” good. Most goods can be used by only one person at a time (rival goods). Note this is not exclusively the case.
network-based businesses are usually pretty durable. A competing firm would need to replicate the network—or at least come close—before users would see more value in the new network and switch away from the existing one.
in a fast-growing market with consumer preferences that are still being formed around a new type of service the network effect can be subject to successful attack.
for a company to benefit from the network effect, it needs to operate a closed network, and when formerly closed networks open up, the network effect can dissipate in a hurry. It’s a good question to ask whenever you’re evaluating a company that might benefit from network economics: How might that network open up to other participants?
This is a common effect of network-based businesses:
The benefit of having a larger network is nonlinear, which means that the economic value of the network increases at a faster rate than its absolute size. There is probably an element of critical mass present here, too (to determine the point at which the network becomes valuable). There may also be an element of ‘escape velocity’, in that one or more emerging networks compete and may even both be at critical mass (that is, useful) but when one reaches a certain relative size it becomes dominant (think facebook, nexopia, myspace).
the value of a network to its users is more closely tied to the number of connections than it is to the number of nodes, but the value-to-connection relationship likely slows down as the number of connections becomes extremely large.
Cost Advantages
Cost advantages can sometimes be durable, but they can also disappear very quickly, so as an investor you need to be able to determine whether a company’s cost advantage is replicable by a competitor.
cost advantages matter most in industries where price is a large portion of the customer’s purchase criteria.
these industries are usually characterized as commodity industries, that’s not strictly true.
A useful way to pick out industries in which cost advantages are likely to be a big factor is to imagine whether there are easily available substitutes—products or services that serve the same function for the buyer, even if they are differentiated.
Cost advantages can stem from four sources: cheaper processes, better locations, unique assets, and greater scale.
Process advantages
in theory they shouldn’t exist for long enough to constitute much of a competitive advantage, because competitors should copy them. This generally does happen eventually, but it can take a lot longer than one might expect.
Copy processes can require significant or compete overhauls of business plans. Difficult to do period, and compounded by organizational inertia.
Another reason is that new processes may be advantageous, but a first-mover may actually gain an enduring advantage if they gain scale and prevent followers from being able to adopt their process (that is prevent competitors from copying the business model that uses the process by exploiting scale advantages).
process-based cost advantages can create a temporary moat if incumbents
are unlikely to replicate them immediately, and if new entrants either can’t copy the process or doing so is likely to destroy the industry’s economics.
A moat that is built on lazy or stumbling competitors is not a terribly strong one. So, process-based moats are worth watching closely, because the cost advantage often slips away as competitors either copy the low-cost process or invent one of their own.
Location Advantages
This type of cost advantage is more durable than one based on process because locations are much harder to duplicate.
This advantage occurs most frequently in commodity products that are heavy and cheap—the ratio of value to weight is low—and that are consumed close to where they’re produced. They create mini-monopolies in their immediate vicinity.
Unique assets or superior access to resources
A type of cost advantage that is generally limited to commodity producers is access to a unique, world-class asset.
Cost advantages can be extremely powerful sources of competitive advantage, but some are more likely to last a long time than others.
Process-based advantages usually bear close watching, because even if they do last for some period of time, it’s often because of some temporary limitation on competitors’ ability to copy that process. Once that limitation disappears, the moat can get a lot narrower very quickly.
Location-based cost advantages and low costs based on ownership of some unique asset are much, more durable and easier to hang one’s analytical hat on. Companies with location advantages often create mini-monopolies, and world-class natural resource deposits are by definition pretty hard to replicate.
Scale (a special type of cost advantage)
When you’re thinking about cost advantages that stem from scale, remember one thing: The absolute size of a company matters much less than its size relative to rivals.
Very broadly speaking, the higher the level of fixed costs relative to variable costs, the more consolidated an industry tends to be, because the benefits of size are greater.
We can break down scale-based cost advantages into three categories: distribution, manufacturing, and niche markets.
manufacturing scale tends to get most of the attention, but the cost advantages stemming from large distribution networks or dominance of a niche market are just as powerful—and, in an increasingly service-oriented economy, they are more common as well.
Distribution scale
Large distribution networks can be the source of tremendous competitive advantages, and you can easily see why when you think about the economics of moving stuff from point A to point B.
Although building and operating the delivery network is an expensive proposition for a base level of service, the incremental profit on each item that the truck fleet delivers is enormous.
once the fixed costs are covered, delivering an extra item that is on a delivery route is extremely profitable because the variable cost of making an extra stop is almost nothing.
imagine that you need to try to compete with a company that has an established distribution network. It has likely covered its fixed costs and is making large incremental profits as it delivers more stuff, while you’ll need to take on large losses for a time until (if) you gain enough scale to become profitable.
Many businesses with delivery networks can dig this type of economic moat.
Large distribution networks are extremely hard to replicate, and are often the source of very wide economic moats.
Manufacturing scale
The closer the factory is to 100 percent capacity, the more profitable it is, and the larger the factory, the easier it is to spread fixed costs over larger volume of production.
Also, the larger the factory, the easier it is to specialize by individual tasks or to mechanize production.
the prevalence of this type of cost advantage has diminished somewhat in the recent past as enormous low-cost pools of labor in China and Eastern Europe have become integrated into the global economy, causing some manufacturing to shift away from Europe and North America.
Manufacturing scale needn’t be limited to owning a larger production facility than the competition. As long as costs can be spread over a sales base, this advantage exists: e.g. over subscribers or gamers.
Niche market scale
Even if a company is not big in an absolute sense, being relatively larger than the competition in a specific market segment can confer huge advantages.
companies can build near-monopolies in markets that are only large enough to support one company profitably, because it makes no economic sense for a new entrant to spend the capital necessary to enter the market.
this type of competitive advantage is often found in smaller manufacturing firms, it’s not limited to the industrial world.
Small markets don’t attract giants.
ERODING MOATS
The best analysis in the world can be rendered moot by unforeseen changes in the competitive landscape.
Although change can be an opportunity, it can also severely erode once-wide economic moats. critical to continually monitor the competitive position of the companies in which you have invested, and watch for signs that the moat may be eroding.
There are two sides to this threat.
The first is the risk that a company that sells technology and it loses out in the furious race to stay on the cutting edge.
Being technologically supplanted by a competitor is simply a fact of life for most technology companies, because they typically win business by having a product that is better/faster/cheaper than their peers’ products.
“In the long run, everything is a toaster.”
Technological disruption is a more unexpected—and severe—threat when it affects non-tech companies, because these companies can look like they have very strong competitive advantages before a technological shift permanently hurts their economics.
the kind of technological disruption that structurally damages the economics of an entire industry is relatively rare
One thing to remember is that disruptive technologies can hurt the moats of businesses that are enabled by technology even more than businesses that sell technology shifts in the structure of industries can also cause lasting damage to companies’ competitive advantages. One common change to watch out for is consolidation of a once-fragmented group of customers.
Changes in the industry landscape needn’t be local. The entry of low-cost workforces elsewhere into the global labor pool has permanently damaged the economics of many manufacturing businesses.
In some cases, the labor differential is so large that companies that may have once benefited from a location-based moat have seen that competitive advantage disappear, as the cost savings from low-cost labor is large enough to offset high transportation costs.
One final change to watch out for is the entry of an irrational competitor into an industry.
Some kinds of growth can cause moats to erode. the single most common self-inflicted wound to competitive advantage occurs when a company pursues growth in areas where it has no moat. A company can fill in its own moat by investing heavily in areas in which it has no competitive advantage.
If a company that has regularly been able to raise prices starts getting pushback from customers, you’re getting a strong signal that the company’s competitive advantage may have weakened.