If I know what to spec, and I can measure it, and there are no unpredictable interdependencies between what you do and what I must do in response, then an economist would say that is sufficient information for a market to emerge between you and me.

An innovation will get traction only if it helps people get something that they're already doing in their lives done better.

Often they [writers on the study of management] have a point of view based upon intuition and experience. They then offer a cadence of two-paragraph examples carefully selected to "prove" their theory, and then they write "one size fits all" books. The message is, "If you'd do what these companies did, you'd be successful too."

The reason why it is so difficult for existing firms to capitalize on disruptive innovations is that their processes and their business model that make them good at the existing business actually make them bad at competing for the disruption. Companies in fact are specifically organized to under-invest in disruptive innovations! This is one reason why we often suggest that companies set up separate teams or groups to commercialize disruptive innovations. When disruptive innovations have to fight with other innovations for resources, they tend to lose out.

You can invest to create the new growth business while the core business is still growing, because new business units don't need to get big fast. But when the core business stops growing, investing to create new growth businesses becomes impossible.

Year after year after year, people write books about managing innovation or about leadership, for example, without ever going through the pain of saying, "This kind of leadership will cause this result in these circumstances and a very different result in those circumstances." This is academic malpractice of the worst kind.

The mistake managers often make is defining their industry too narrowly. Digital's market share in the minicomputer market stayed very robust even as it fell off the cliff. Disruption seems to come out of nowhere, but if you know what to look for, you can spot important developments well before the market does.