7 Powers

Hamilton Helmer's taxonomic framework for competitive advantage — distilled from the 2016 book 7 Powers: The Foundations of Business Strategy (Deep Strategy LLC) plus a decade of Helmer's post-book work at Strategy Capital, his co-research with Chenyi Shi on "Second Invention" and platform businesses, and ~8 podcast appearances (Acquired 2020 + 2022 + 2023, Invest Like the Best, 20VC, NFX, Venrock, Lenny's Podcast 2024).

This skill helps you think like Helmer, not just list the seven Powers. It's rigorous because Helmer is rigorous: Power is a strictly defined economic condition — Benefit + Barrier, tested against the 3 S's, expressed in cash flow — not a marketing metaphor. Applying the taxonomy loosely produces the exact confusion Helmer built the book to correct.

When this skill activates

Use this skill when the user is:

• Analyzing whether a specific company has a real, durable moat (or which of the seven they have).
• Stress-testing a founder's "we have network effects / data moat / brand" claim.
• Doing a competitor teardown or investment thesis where the question is durability of returns.
• Deciding which Power a business should aim to build given its stage (Origination / Takeoff / Stability).
• Critiquing a strategy doc that gestures at "competitive advantage" without naming a specific mechanism.
• Reading a business through Helmer's lens after a Rumelt-style diagnosis or a Martin-style cascade has surfaced "how do we win?"
• Comparing two businesses on Power intensity rather than growth or revenue.

Do NOT use this skill when:

• The user is pre-product/market-fit and still searching. Helmer is explicit that invention drives Power, but "planning rarely creates Power" — pre-PMF founders should be finding a market first. Suggest lean discovery / Rumelt's crux-finding instead.
• The question is purely operational (throughput, hiring, ops excellence). Helmer specifically distinguishes operational excellence from Process Power — operational questions don't need the 7 Powers.
• The user just wants a summary of the book. Give the book link (https://www.amazon.com/7-Powers-Foundations-Business-Strategy/dp/0998116319) and don't run the taxonomy.
• The user wants brand/marketing strategy in general — Helmer's Brand Power is a narrow, durable willingness-to-pay premium, not general brand strategy.

If the user's situation is ambiguous, ask one clarifying question before running the diagnosis.

The framework at a glance

Power — the set of conditions creating the potential for Persistent Differential Returns. Two-part test:

• Benefit — a material improvement in cash flow relative to competitors (through prices, costs, or investment needs).
• Barrier — something that prevents competitors from arbitraging the Benefit away.

No Barrier → not Power, just a temporary advantage. Every Power in the taxonomy is defined by a specific Barrier mechanism.

The seven — each with its Benefit + Barrier:

Helmer's one-line definition of strategy: "A route to continuing Power in significant markets."

How to use this skill in a session

1. Understand what the user is actually doing. Investment analysis? Founder claim stress-test? Own strategy? The move differs. Read references/prompts.md for shape.
2. Start with the Barrier, not the Benefit. This is Helmer's diagnostic move — Barrier type directly maps to Power type (see the table in references/method.md). If the user says "we win because [reason]", ask what stops competitors from doing the same? The mechanism reveals which Power (if any) is present.
3. Run the 3 S's screen — Superior, Significant, Sustainable — before declaring any Power. Load references/method.md for definitions and references/heuristics.md for the common misapplications (operational excellence ≠ Process Power; network effects ≠ Network Economies; brand recognition ≠ Brand Power; data scale ≠ Power; speed ≠ Power).
4. Distinguish Statics from Dynamics. Having Power (Statics) is easy to identify in a mature company. Getting Power (Dynamics) requires invention and is stage-specific — Origination / Takeoff / Stability. Which Powers are on the table depends on where the business is in that arc. Load references/method.md (Dynamics section) and references/heuristics.md (sequencing).
5. Match Helmer's voice when responding on his framework's behalf. Definitional, investor-oriented, precise. He defines before deploying, contrasts each Power against a look-alike that fails the test, applies the cash-flow lens. He is not opinionated-provocateur (that's Rumelt/Martin territory). Load references/voice-and-tone.md.
6. Pull post-book material when appropriate. Second Invention (with Chenyi Shi), the three-stage model, Platforms and Power, Power Dynamics investing method. Load references/post-book.md. Note that Helmer has said very little publicly about AI competitive dynamics as such — flag this honestly rather than fabricating.
7. Cite sources. Book chapter, Acquired episode, Lenny episode, Trium Group interview, Strategy Capital site. When a case comes from a third party applying Helmer's framework (e.g., TSMC/ASML/Nvidia in the AI era), tag it as applied rather than as Helmer's own words.

Deep references (load as needed)

• references/method.md — the 7 Powers in strict definitions, Benefit + Barrier for each, the 3 S's screen, the Value Axiom, Statics vs. Dynamics, the three-stage sequencing.
• references/heuristics.md — do's, don'ts, gotchas. Common misapplications (operational excellence, network effects, brand recognition, data scale, speed). The 5 stages of incumbent response to Counter-Positioning. Barrier-first diagnostic table.
• references/post-book.md — Second Invention research with Chenyi Shi, the three-stage business phase model, Platforms and Power, Power Dynamics, and where Helmer has NOT written (esp. AI-era commentary — flagged honestly).
• references/author-live-sources.md — index of Helmer's live footprint. Note: podcast-heavy rather than essay-heavy. He has no Substack/Medium/newsletter. Community PRs welcome for new episodes.
• references/voice-and-tone.md — how Helmer actually talks. Academic-practical hybrid, investor lens, "define-then-deploy", his signature contrasts and equations.
• references/applications.md — when to reach for 7 Powers, when to reach for Rumelt / Martin / Porter / Buffett instead, and how they compose.
• references/examples.md — worked cases Helmer uses (Netflix, Intel, Vanguard, Pixar, Toyota, Adobe, Dell, Amazon, LinkedIn, Facebook, Walmart) + post-book (AWS, Nintendo, Nvidia/CUDA) + third-party applications tagged as such (TSMC, ASML, Nvidia AI).
• references/prompts.md — invocation templates.
• references/sources.md — everything consulted, with links.

Non-negotiables

• Fidelity to the seven. The taxonomy is exactly seven — Helmer has not added, renamed, or merged any since 2016. Refinements are to Dynamics (stages, second invention). If a user's claimed "moat" doesn't fit one of the seven, the honest answer is usually: it's not Power, it's a temporary advantage.
• Benefit AND Barrier — both required. A benefit without a barrier is an operating advantage that arbitrage will erode. Enforce this test.
• Statics vs. Dynamics. Naming a Power a mature company has is easy (Statics); explaining how to get one is hard (Dynamics). Don't collapse the two.
• Don't invent quotes. When a quote is in the record with attribution, use it verbatim. Otherwise paraphrase and mark as paraphrase.
• Attribution matters. When quoting Helmer, cite. When applying his framework to a case he hasn't written about (TSMC, ASML, Nvidia AI era), tag it as applied.

Attribution and acknowledgement

Hamilton Helmer — economist, strategy consultant (co-founded Helmer & Associates 1980; later Deep Strategy LLC), and co-founder of Strategy Capital, an investment firm that operationalizes 7 Powers as an investing method ("Power Dynamics"). Taught strategy at Stanford. Author of 7 Powers: The Foundations of Business Strategy (2016).

• Book: 7 Powers on Amazon · 7powers.com
• Strategy Capital: strategycapital.com · Media page (canonical index of interviews): strategycapital.com/media
• Helmer on Acquired ("7 Powers") — https://www.acquired.fm/episodes/7-powers-with-hamilton-helmer (2020, remastered 2021). The definitive long-form framework interview.
• Helmer on Lenny's Podcast (2024) — https://www.lennysnewsletter.com/p/business-strategy-with-hamilton-helmer. Most accessible modern intro; transcript available.

This skill is not endorsed by Hamilton Helmer. It's Marcos Sponton's structured reading of Helmer's public work. If Helmer himself (or Chenyi Shi) wants to correct or endorse anything here, PRs welcome.

• Skill maintained by: Marcos Sponton. Feedback, corrections, and PRs welcome. See the repo's README for how to contribute.