Creative Destruction

We like to picture economic growth as accumulation — a rising pile of gadgets, firms, and jobs stacked politely on top of last year’s. Joseph Schumpeter looked at the same numbers and saw something far more violent: a “gale of creative destruction” — a “process of industrial mutation that incessantly revolutionises the economic structure from within, incessantly destroying the old one, incessantly creating a new one.” Growth, in this view, is not addition. It is replacement. The car did not join the horse-and-buggy trade; it killed it. Streaming did not sit beside the video-rental store; it buried it. The transistor did not supplement the vacuum tube; it ended it.

That is the whole idea and the whole discomfort of this course: progress and ruin are two faces of one event. Every new S-curve rises only as an old one collapses, and the people, capital, and skills tied to the old curve are genuinely destroyed — not gently upgraded. The prize is enormous (this is the engine of nearly all long-run growth), and the cost is real (someone’s livelihood is the “old order” being swept away). A serious model has to hold both at once.

This is an expert-tier course. It leans on three models you’ve already met. Supply & demand explains how a challenger wins — it undercuts the incumbent on price or quality and shifts the whole market curve. Feedback loops explain the rhythm — innovation compounds, and destroying an incumbent frees the capital and labour that fuel the next wave. And moats explain the tension — every moat that protects an incumbent is, on a long enough clock, a countdown timer. We’ll turn all three into a single, unsentimental lens for reading which industries are about to be remade, why the incumbents rarely see it coming, and what the model gets wrong when people wield it as a slogan.