What it means
The phrase is often used interchangeably with disruptive innovation, but there is a useful distinction. Disruptive technology refers to the underlying method or capability, while disruptive innovation refers to the business model that carries it into the market and takes customers away from incumbents.
Most disruptive technologies look unattractive at first because they are compared on the incumbent's scorecard. Early units are expensive, unreliable or limited, and buyers with demanding requirements reject them for perfectly sensible reasons.
What changes the picture is the cost curve. Manufacturing volume, accumulated experience and design refinement drive unit costs down at a steady percentage each year, and once the new method crosses below the incumbent cost, adoption tends to move quickly rather than gradually.
For financial planning this creates an awkward capital allocation problem. Investing in the existing technology gives predictable returns for several years, while investing in the new one may look loss-making until the cost curve does its work, so many boards defer the decision until the switch has to be made under pressure.
A sensible discipline is to model the new technology's cost trajectory explicitly rather than assessing it once and filing it away. If the cost of the new method is falling 15% to 25% a year against a flat incumbent cost, the crossover date can be estimated years ahead and built into the capital plan.
In practice
Real-world examples.
Example
A printing business rejects digital presses because the cost per page is far above its offset presses at typical run lengths. Within a few years digital cost per page falls enough that short runs become more profitable digitally, and competitors who switched early take the high-margin personalised work.
Example
A logistics operator tests electric delivery vans, finds the purchase price 40% higher than diesel equivalents, and shelves the idea. A later review that includes falling battery costs, lower servicing and city access charges shows the total cost of ownership crossing over within two years.
Example
A bank keeps its cheque processing centre running long after volumes start falling, because the equipment is paid for and processing cost per item looks low. Once mobile deposit becomes standard, the fixed cost of the centre is spread over so few items that the cost per item triples.
Formula
Calculation
Unit cost after n years = current unit cost x (1 - annual cost decline rate) to the power of n
An established production method costs $4.00 per unit and has been broadly flat for years because it is mature. A newer method currently costs $9.00 per unit but its cost is falling roughly 20% a year as volume builds. The trajectory is $7.20 after one year, $5.76 after two, $4.61 after three and $3.69 after four, so the new method becomes cheaper during the fourth year. A manufacturer that only compared $9.00 against $4.00 would conclude the new method was more than twice as expensive and dismiss it, while one that modelled the curve would start planning the transition three years before it became urgent.Case study
Seen in the real world.
Calder Optics is an illustrative, fictional manufacturer of precision lenses that ground every component mechanically, a method it had refined over 30 years to a cost of about $4.00 per unit with excellent quality. When a moulding technique appeared at roughly $9.00 per unit with visible defects, the engineering team tested it, documented the flaws and recommended no further work.
Nobody revisited the assessment for three years. By then the moulding cost had fallen to under $5.00 per unit, quality had improved to acceptable levels for consumer products, and two competitors had built entire product lines around it, taking the volume segment that had funded Calder's overheads.
Calder eventually licensed the moulding process, but it entered the market as a follower and spent two difficult years rebuilding share. The illustrative lesson is that the one-off technology assessment is the real risk: the decision was defensible on the day it was made and indefensible twelve months later, because nothing was scheduled to review it.
Watch out
Common mistakes.
- Evaluating a new technology once and treating that verdict as permanent, when the whole point is that its economics change every year.
- Comparing purchase price rather than total cost of ownership, which hides differences in servicing, energy, downtime and useful life.
- Assuming that owning the incumbent equipment outright makes it cheap, when the relevant comparison is future cost per unit, not sunk investment.
Questions
People also ask.
What is the difference between disruptive technology and disruptive innovation?
The technology is the capability itself, while the innovation is the business model that brings it to market and wins customers with it.
Does a disruptive technology always win?
No, plenty stall because the cost curve flattens, the performance ceiling is too low, or regulation and switching costs protect the incumbent method.
How should a finance team plan for one?
Model the cost trajectory each year, set a decision trigger point, and avoid committing to long-lived capital equipment that only pays back after the likely crossover date.
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