Competitive & Industry Frameworks

Learning objectives

By the end you can:

1. Explain, from first principles, why there are five forces and not four or seven (the value-creation-and-value-capture logic that makes the five-forces framework an exhaustive inventory of "who can take the money") and state the discipline that separates a driver-level analysis from a recital.
2. Score each of the five forces from its structural drivers, and attach the kind of evidence a real engagement can gather in days, not months. The drivers: rivalry (concentration, growth, cost structure and perishability, differentiation, exit barriers, rival diversity) and threat of entry (economies of scale, capital requirements, switching costs, access to distribution, proprietary assets, government policy, expected retaliation). Then threat of substitutes (the price-performance trade-off and the buyer's propensity to switch), buyer power (concentration, purchase volume, differentiation, information, backward-integration threat), and supplier power (the mirror image of buyer power).
3. Compute and correctly interpret CR4 and the Herfindahl-Hirschman Index (HHI), including the DOJ/FTC concentration thresholds, and explain (with a worked counterexample) why concentration is one input to a rivalry judgment and never the verdict by itself.
4. State and apply the rule that forces do not average: identify the single binding force in a scored industry (the one constraint that actually governs the economics) and translate that verdict into a specific, client-ready recommendation.
5. Classify a firm's competitive posture into Porter's three generic strategies (cost leadership, differentiation, focus) from margin and cost-structure evidence, and diagnose "stuck in the middle" the way a margin-and-opex table actually reveals it.
6. Draw Porter's value chain (five primary activities, four support activities) for a business and for its rival, and use it two ways: to locate precisely where cost and willingness-to-pay are created inside the business, and to compare two chains built to serve the identical customer job.
7. Apply the 3C framework (Company, Customer, Competitor) as a fast, company-specific strategic-fit triangle, and state precisely when 3C is the right first move in an engagement and when only a full five-forces read will do.
8. Map a profit pool across a supplier-to-customer chain of independent firms, compute each link's share of the chain's economic profit from numbers that actually reconcile, and explain (by running the forces link by link) why the pool sits where it sits, and which way it is migrating.
9. (Productivity objective: R10 duality.) Use AI to compress the blank-page cost of a driver-level read, a first-pass hypothesis list of expected drivers, a value-chain skeleton, a profit-pool structure, or a devil's-advocate stress test of your own verdict, while keeping every figure that reaches a client deck traced to evidence you verified yourself, never to the model's say-so.

The duality, stated once (R10). Objectives 1–8 are the understanding objective the mastery gate rewards: you earn the belt by scoring the forces, naming the binding one, and defending a recommendation with your own evidence. Objective 9 is the productivity payoff you keep afterward, knowing how to make an AI tool draft the scaffolding of a driver-level read fast, without ever letting it become the source of a figure that reaches a client. A tool can accelerate the first draft. It cannot buy you the gate.

Prerequisites & connections

Builds on. CN0.01 (the problem-solving cycle and this galaxy's honest-scope statement, partner judgment compounds from live engagements; this module teaches the teachable floor of industry diagnosis, nothing more, nothing less). CN1.01 (issue trees and MECE): the five forces are themselves a MECE decomposition of "who can take the industry's money" (buyers, suppliers, substitutes, rivals, entrants, customer-side, input-side, outside-option, inside-fight, outside-fight). You are about to apply the tree discipline you already own to a structure Michael Porter built for you in 1979. CN1.02 (hypothesis-driven problem solving), you will form a day-one hypothesis about which force is likely binding before you have gathered a single piece of evidence, and then design the minimum work that would confirm or kill it, exactly as CN1.02 trained. CN2.02 (market sizing and guesstimates), a profit-pool revenue estimate for a chain link you cannot directly observe is a sizing problem, and it reuses the same top-down/bottom-up triangulation and defensible-range discipline. If you completed the Cycle-2 taster, E11.03 (The Consulting Case-Interview Lab) and its case CL-11.3, you already have the profit-tree and market-sizing reflexes this module assumes; this is the "whole kitchen" that taster promised.