# Resource-Based View and VRIO Concept Card: [Company or case name] > A concept card for the resource-based view of the firm (RBV) as it is taught in a first-year MBA strategy core: why > firms in the same industry earn different returns, how to test a resource or capability with the VRIO questions, what > core competences and dynamic capabilities add, and how to put a number on the question "how long until a rival copies > this?". It is for MBA students preparing a case discussion or exam, and for managers who need to decide which > capabilities to protect, build or stop funding. The card explains the idea first, then gives the formulas with a > notation table, a fully solved scored VRIO analysis for Corvane Robotics, a half-solved example for Northfield Outdoor > Co., an unsolved exercise for Tallow Creek Medical Center, a self-test and a separate answer key. All companies and > numbers are fictional. > Source basis: Penrose (1959), Wernerfelt (1984), Barney (1991, 1995), Dierickx and Cool (1989), Prahalad and Hamel > (1990), Peteraf (1993), Teece, Pisano and Shuen (1997) and Teece (2007), written up in original words and examples. > Replace every [bracketed] value and every row marked *Example*. ## Document control | Field | Value | |---|---| | Course or project | [Strategy core, session 6 / client project / own company review] | | Learner or team | [Your name or learning team] | | Company analysed | [Corvane Robotics (fictional) / your company] | | Evidence sources | [Case exhibits, annual report, interviews, patent search, job postings] | | Scoring scale | 1 (very weak) to 5 (very strong); criterion met at a score of 3 or more | | Reviewed by | [Instructor, mentor or team member] | | Date | YYYY-MM-DD | | Version | [0.1] | ## When to use it **One-sentence rule:** use the resource-based view when you need to explain why one firm earns more than its rivals in the same industry, or when you must decide which internal resources and capabilities deserve protection and investment. | Use it when | Use something else when | |---|---| | Firms in one industry show persistent differences in margin or ROIC | The question is whether the whole industry is attractive (five forces) | | A case asks "what is the source of this firm's advantage, and will it last?" | You need to map activities and cost drivers step by step (value chain) | | Management must choose which capabilities to build, buy or protect | You need a growth path across products and markets (Ansoff, see `mba/mba-growth-strategy-card`) | | You assess an acquisition target's "crown jewels" | You need a valuation number (DCF, see `mba/mba-dcf-valuation-card`) | | A firm plans a move into a new market and asks which strengths travel | The issue is short-term pricing against a known rival (game theory, pricing) | The RBV complements, and does not replace, the industry view. Porter's five forces (Porter 1979, 1980) explain why average returns differ between industries; the RBV explains why returns differ between firms inside one industry. A complete case answer usually needs both: an attractive position and the resources to hold it. ## The idea in plain language A firm is a bundle of **resources** (things it has: patents, data, brands, plants, cash, licences, relationships) and **capabilities** (things it can do well, repeatedly, by combining resources through people and routines). Edith Penrose (1959) described the firm as a collection of productive resources whose use is directed by management, and argued that the unused services of those resources drive the firm's growth. Wernerfelt (1984) turned the idea into a strategy lens: look at firms through their resources, not only their products, and ask which resources give a position that others find hard to reach. Barney (1991) gave the conditions under which a resource can produce a **sustained competitive advantage**: it must be valuable, rare, imperfectly imitable and without strategically equivalent substitutes. Two assumptions sit underneath: resources are distributed unevenly across firms (**heterogeneity**), and they do not move freely between firms (**immobility**). If every rival could buy the same resource at the same price on an open market, the price would rise until it captured the whole value, and the firm buying it would earn nothing extra. Barney (1995) turned the conditions into four practical questions, now known as **VRIO**: 1. **Value.** Does the resource let the firm exploit an opportunity or neutralise a threat, so that customers pay more or the firm's costs fall? 2. **Rarity.** Is it controlled by only a few competing firms? 3. **Imitability.** Do firms without it face a cost disadvantage in getting it, either by copying it or by building a substitute? 4. **Organisation.** Is the firm organised (structure, management systems, incentives, processes) to capture the value the resource can produce? Why is imitation costly? Dierickx and Cool (1989) showed that many strategic assets are **stocks** accumulated through flows of investment over time. You cannot buy ten years of reputation in one year: there are time compression diseconomies, asset mass efficiencies (the more you have, the easier it is to add), interconnectedness between stocks, and causal ambiguity (nobody, not even the owner, is sure exactly which actions produced the asset). Lippman and Rumelt (1982) showed formally that uncertainty about what causes success can keep profits different across firms even with free entry. Barney (1991) added **unique historical conditions** (path dependence) and **social complexity** (culture, trust, relationships), which are hard to copy because they are not designed by anyone. Two further ideas complete the picture. - **Core competences** (Prahalad and Hamel 1990): the collective learning of the organisation, especially how to coordinate diverse skills and integrate streams of technology. They proposed three tests: a core competence gives access to a wide variety of markets, it contributes significantly to the benefits the customer perceives in the end product, and it is difficult for competitors to imitate. The managerial message: allocate engineers and skills across business units as a corporate asset, rather than letting each unit hoard them. - **Dynamic capabilities** (Teece, Pisano and Shuen 1997): the firm's ability to integrate, build and reconfigure internal and external competences to address rapidly changing environments. Their framework looks at managerial and organisational **processes**, the firm's asset **positions**, and the **paths** available to it. Teece (2007) later grouped dynamic capabilities into **sensing** opportunities and threats, **seizing** them, and **transforming** (reconfiguring) the asset base. A static VRIO table tells you what the firm has today; dynamic capabilities ask whether the firm can renew it before it erodes. Peteraf (1993) tied these strands together with four "cornerstones": heterogeneity (which creates rents), ex post limits to competition (which sustain them), imperfect mobility (which keeps them inside the firm) and ex ante limits to competition (the resource was acquired for less than its later value, so the rents are not competed away in advance). ## Formulas and notation **1. Scored VRIO index.** Score each criterion from 1 to 5, record the evidence, and call a criterion "met" when the score is 3 or more. The composite index ranks resources for attention: $$ S_j = \frac{V_j \times R_j \times M_j \times O_j}{5^4} \times 100 $$ A multiplicative index is used on purpose: a resource that fails one test badly cannot be rescued by excellent scores on the others. The verdict, however, comes from the **sequence** of yes/no answers, not from the index. The table follows Barney (1995); the "unexploited" row reflects how later textbook versions of the framework (Barney and Hesterly) treat a failed organisation test: | First failed test | Competitive implication | Economic performance (typical) | |---|---|---| | Value | Competitive disadvantage | Below normal | | Rarity | Competitive parity | Normal | | Imitability | Temporary competitive advantage | Above normal, for a while | | Organisation | Unexploited competitive advantage | Normal or below, potential not captured | | None (all met) | Sustained competitive advantage | Above normal, persistent | **2. Imitation economics.** A rival copies a resource only if copying is worth more than it costs. From the rival's point of view, building the resource takes $k$ years of investment $C_t$, then brings an incremental margin $\Delta\pi_t$ for $m$ years: $$ NPV_{\text{imit}} = -\sum_{t=1}^{k} \frac{C_t}{(1+r)^t} + \sum_{t=k+1}^{k+m} \frac{\Delta \pi_t}{(1+r)^t} $$ If $NPV_{\text{imit}} < 0$, a rational rival does not copy, and the resource is protected for now. The break-even annual margin, for a constant $\Delta\pi$, is $$ \Delta \pi^{*} = \frac{\sum_{t=1}^{k} C_t (1+r)^{-t}}{\sum_{t=k+1}^{k+m} (1+r)^{-t}} $$ **3. Rent from a scarce resource** (Peteraf 1993, in words): the rent is the margin the resource earns above what the next-best (marginal) resource earns. If the resource could be bought on an open market at a price that reflected its full future value, the rent would go to the seller, not the buyer. | Symbol | Meaning | Unit | |---|---|---| | $V_j, R_j, M_j, O_j$ | Scores for value, rarity, imitability (cost of imitation) and organisation of resource $j$ | 1 to 5 | | $S_j$ | Composite VRIO index | 0 to 100 | | $C_t$ | Rival's investment to build or copy the resource in year $t$ | USD m | | $\Delta\pi_t$ | Rival's incremental annual margin once it has the resource | USD m per year | | $k$ | Years needed to build the resource (time to imitate) | years | | $m$ | Years the rival expects to benefit before the resource is obsolete or matched | years | | $r$ | Rival's discount rate (its cost of capital for this project) | % per year | | $NPV_{\text{imit}}$ | Net present value of imitation for the rival | USD m | | $\Delta\pi^{*}$ | Break-even annual margin for imitation | USD m per year | Note: we write imitability as $M$ (for "costly to iMitate") so that it does not collide with "index"; a high $M$ means the resource is **hard** to imitate. ## Assumptions and limits - **Tautology risk.** Critics (notably Priem and Butler 2001) argued that "valuable" resources are often identified after the fact from the firm's success, which makes the argument circular. Guard against it: define value through a specific customer benefit or cost saving, and estimate it before you look at the firm's profits. - **Static snapshot.** VRIO describes the resource today. Markets, technologies and regulation change what is valuable. This is why dynamic capabilities were added to the theory. - **Scores are judgements.** Two teams can score the same resource differently. Make the evidence explicit, score independently first, then discuss the differences. - **Bundles, not single items.** Advantage often comes from a system of complementary resources and activities that fit together. Score the bundle as well as its parts (see `mba/mba-value-chain-card` on activity fit). - **Substitutes.** A resource can be impossible to copy and still be bypassed by a different resource that does the same job. Barney (1991) lists non-substitutability as its own condition; in VRIO it sits inside the imitability question. - **Value capture is not automatic.** Employees, suppliers or partners who control the resource can bargain away the rent (a star engineering team can demand higher pay). Ask who captures the value, not only who creates it. - **Core rigidities.** A capability that is a strength in one environment can become a trap in another (Leonard-Barton 1992 called these core rigidities). ## How managers use it in practice 1. **Inventory.** List 8 to 15 candidate resources and capabilities. Use the value chain as a checklist so nothing is missed: technology, operations, channels, brand, data, people, relationships, licences, financial resources. 2. **Evidence.** For each, write one line of evidence for each criterion: a customer survey, a cost comparison, a patent expiry date, the number of rivals that have it, how long a rival took to build something similar. 3. **Score and classify.** Apply the 1 to 5 scores, the yes/no threshold and the sequence of tests. 4. **Test imitation economics** for the top two or three resources: how much would a rival need to invest, for how long, and would it pay? 5. **Decide.** Typical decisions per verdict: | Verdict | Typical management response | |---|---| | Sustained advantage | Protect (IP, retention, secrecy), keep investing, build on it in adjacent markets | | Unexploited advantage | Fix the organisation: incentives, product management, data governance, structure | | Temporary advantage | Exploit fast, plan the next advantage, consider licensing before it erodes | | Competitive parity | Do it well and efficiently, do not overinvest, consider outsourcing | | Competitive disadvantage | Fix, buy or exit; benchmark against the leader | 6. **Renew.** Ask the dynamic capability questions: how does the firm sense change, how fast can it reallocate people and money, what did it stop doing in the last three years? ```mermaid flowchart TD A["Resource or capability"] --> V{"Valuable? (V score of 3 or more)"} V -- No --> D1["Competitive disadvantage: fix, buy or exit"] V -- Yes --> R{"Rare? (R score of 3 or more)"} R -- No --> D2["Competitive parity: run efficiently"] R -- Yes --> I{"Costly to imitate or substitute? (M score of 3 or more)"} I -- No --> D3["Temporary advantage: exploit fast, plan the next one"] I -- Yes --> O{"Organised to capture value? (O score of 3 or more)"} O -- No --> D4["Unexploited advantage: fix structure, incentives, systems"] O -- Yes --> D5["Sustained advantage: protect, invest, extend"] ``` ## Worked example A (fully solved): scored VRIO for Corvane Robotics **Situation (fictional).** Corvane Robotics, a venture-backed warehouse-robotics company, sells autonomous mobile robots (AMRs) and fleet software to third-party logistics firms and retailers, mostly on multi-year contracts. Its board asks the strategy team: which of our resources give us an advantage that will last, and where should the next USD 15m of investment go? **Step 1 and 2: inventory and evidence.** | ID | Resource or capability | Evidence (summary) | |---|---|---| | CR-R1 *(Example)* | Fleet orchestration software | Customers cite 18% higher picks per hour than the prior system; two rivals launched similar basic orchestration features within 14 months (the data-driven congestion analytics depend on CR-R2) | | CR-R2 *(Example)* | Pick-performance data set (4.2 billion logged picks across 160 sites) | No rival has more than a quarter of this volume; data sits in separate site databases and is not used in the product roadmap | | CR-R3 *(Example)* | Gripper patent family (11 granted patents, earliest expiry 2038) | Licensing enquiries from two rivals; design-around attempts failed in tests | | CR-R4 *(Example)* | Field service network (180 engineers in 9 regions) | Response times match the top three rivals; competitors use the same third-party service partners | | CR-R5 *(Example)* | Robotics engineering team and its release routines | Release cadence twice the industry median; low attrition; routines built over eight years | | CR-R6 *(Example)* | Warehouse management system (WMS) connector library (34 connectors) | Rivals offer 25 to 40 connectors; an integration vendor sells most of them | | CR-R7 *(Example)* | Outsourced robot assembly | Unit assembly cost 9% above two rivals with their own plants | **Step 3: scores and verdicts.** Scores 1 to 5; a criterion is met at 3 or more. | ID | V | R | M | O | Index $S_j$ | First failed test | Verdict | |---|---|---|---|---|---|---|---| | CR-R1 *(Example)* | 5 | 4 | 2 | 5 | 32.0 | Imitability | Temporary advantage | | CR-R2 *(Example)* | 5 | 5 | 5 | 2 | 40.0 | Organisation | Unexploited advantage | | CR-R3 *(Example)* | 4 | 4 | 4 | 4 | 41.0 | None | Sustained advantage | | CR-R4 *(Example)* | 4 | 2 | 2 | 4 | 10.2 | Rarity | Competitive parity | | CR-R5 *(Example)* | 4 | 3 | 4 | 4 | 30.7 | None | Sustained advantage | | CR-R6 *(Example)* | 3 | 2 | 2 | 5 | 9.6 | Rarity | Competitive parity | | CR-R7 *(Example)* | 2 | 1 | 1 | 4 | 1.3 | Value | Competitive disadvantage | Example calculation for CR-R3: $S = 4 \times 4 \times 4 \times 4 / 625 \times 100 = 256/625 \times 100 = 40.96$, shown as 41.0. In Excel, with the four scores in B5:E5: `=PRODUCT(B5:E5)/5^4*100`. The verdict formula, with a threshold in cell $H$1 (value 3): `=IF(B5<$H$1,"Disadvantage",IF(C5<$H$1,"Parity",IF(D5<$H$1,"Temporary",IF(E5<$H$1,"Unexploited","Sustained"))))`. Notice two things. First, CR-R2 has a high index (40.0) but is **not** a sustained advantage: it fails on organisation. The index ranks attention; the sequence gives the verdict. Second, CR-R1 has the strongest value score but rivals copied the features within 14 months, so it is a temporary advantage only. ```vega-lite { "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "description": "Corvane Robotics (fictional): composite VRIO index by resource, coloured by verdict", "width": 360, "height": 210, "data": {"values": [ {"resource": "CR-R1 Orchestration software", "index": 32.0, "verdict": "Temporary advantage"}, {"resource": "CR-R2 Pick data set", "index": 40.0, "verdict": "Unexploited advantage"}, {"resource": "CR-R3 Gripper patents", "index": 41.0, "verdict": "Sustained advantage"}, {"resource": "CR-R4 Field service", "index": 10.2, "verdict": "Competitive parity"}, {"resource": "CR-R5 Engineering routines", "index": 30.7, "verdict": "Sustained advantage"}, {"resource": "CR-R6 WMS connectors", "index": 9.6, "verdict": "Competitive parity"}, {"resource": "CR-R7 Outsourced assembly", "index": 1.3, "verdict": "Competitive disadvantage"} ]}, "mark": "bar", "encoding": { "y": {"field": "resource", "type": "nominal", "sort": "-x", "title": null}, "x": {"field": "index", "type": "quantitative", "title": "Composite VRIO index (0 to 100)", "scale": {"domain": [0, 50]}}, "color": {"field": "verdict", "type": "nominal", "title": "Verdict"} } } ``` **Step 4: imitation economics for CR-R2.** A rival estimates it would need USD 8m in year 1, USD 8m in year 2 and USD 6m in year 3 (sensors, data engineering, pilot sites) to build a comparable data set, and would then earn an extra USD 5.5m a year in margin for years 4 to 9. Its cost of capital is 12%. | Item | Value | Excel | |---|---|---| | Cash flows, years 1 to 9 (USD m) | -8, -8, -6, 5.5, 5.5, 5.5, 5.5, 5.5, 5.5 | in B2:J2 | | $NPV_{\text{imit}}$ at 12% | **USD -1.70m** | `=NPV(12%, B2:J2)` (all flows start in year 1, so no year-0 term) | | PV of build cost | USD 17.79m | `=NPV(12%, 8, 8, 6)` | | PV factor for years 4 to 9 | 2.9264 | `=NPV(12%, 0, 0, 0, 1, 1, 1, 1, 1, 1)` | | Break-even annual margin $\Delta\pi^{*}$ | USD 6.08m | `=17.79/2.9264` (use the unrounded cells) | | NPV if the rival wins only 60% of the hoped margin | USD -8.13m | replace 5.5 by 3.3 | | NPV if the benefit lasts 8 years instead of 6 | USD +1.66m | extend the row to year 11 | Interpretation: at today's assumptions imitation does not quite pay (NPV USD -1.70m), so the data set is protected, but only narrowly: if the rival expects eight years of benefit instead of six, copying becomes worth it. Corvane's best protection is to keep the data set growing and to use it in the product, which both shortens the rival's benefit period and raises the bar the rival must reach. **Step 5: decision.** Recommend to the board: 1. Spend the first part of the USD 15m on **organising CR-R2**: a data platform that pools site data, a product team that owns data-driven features (pick-path optimisation, predictive maintenance) and contract terms that clarify data rights with customers. This turns an unexploited advantage into a sustained one. 2. **Protect CR-R3 and CR-R5**: maintain the patent family, retain the engineering leads (retention plans, career paths), document routines without making them easy to lift. 3. Treat **CR-R1** as a temporary advantage: keep shipping, but do not expect it to carry the strategy. 4. Run **CR-R4 and CR-R6** at parity efficiently; buy rather than build more connectors. 5. Address **CR-R7**: benchmark assembly cost, renegotiate or move to a lower-cost partner; do not build a plant without a separate business case (`finance/investment-appraisal`). ## Worked example B (half solved): Northfield Outdoor Co. **Situation (fictional).** Northfield Outdoor Co., a mid-size outdoor-gear retailer and brand with stores and an online shop, offers lifetime repairs on its own-brand jackets and packs. Management wonders whether the repair service is a real advantage or just a cost. | ID | Resource | V | R | M | O | Index | First failed test | Verdict | |---|---|---|---|---|---|---|---|---| | NF-R1 *(Example)* | Lifetime repair service and its repair data (failure modes by product) | 4 | 4 | 4 | 2 | [ ] | [ ] | [ ] | | NF-R2 *(Example)* | Store network (62 stores) | 3 | 2 | 2 | 4 | 7.7 | Rarity | Competitive parity | | NF-R3 *(Example)* | In-house fabric lab and design team | 4 | 3 | 3 | 4 | [ ] | None | [ ] | | NF-R4 *(Example)* | Loyalty programme (1.9m members) | 3 | 2 | 2 | 3 | 5.8 | [ ] | [ ] | Evidence notes for NF-R1: repair data are logged on paper forms in each store and never reach the design team; repaired items are not resold. [Write what "organised" would look like here.] **Imitation economics.** A national rival considers building a repair network: USD 3.0m in each of years 1 and 2, then an extra USD 1.1m a year of margin in years 3 to 10. Its discount rate is 9%. 1. PV of the build cost: USD 5.28m (`=NPV(9%, 3, 3)`). 2. PV factor for years 3 to 10: [ ] (`=NPV(9%, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1)`). 3. $NPV_{\text{imit}}$ = [ ] (`=NPV(9%, -3, -3, 1.1, 1.1, 1.1, 1.1, 1.1, 1.1, 1.1, 1.1)`). 4. Break-even annual margin: [ ]. 5. One-sentence recommendation for Northfield: [ ]. ## Exercise C (unsolved): dynamic capabilities at Tallow Creek Medical Center **Situation (fictional).** Tallow Creek Medical Center, a regional hospital, faces two shifts: payers are moving planned procedures to outpatient centres, and a new remote-monitoring technology lets patients with heart failure be followed at home. The hospital has a respected cardiology team, a 20-year relationship with local primary-care practices, a ten-year-old electronic health record set-up with limited data access, and a budget process that allocates capital once a year by department. 1. List four resources or capabilities and score them with VRIO (1 to 5, with evidence). 2. Score the hospital's dynamic capabilities on sensing, seizing and transforming (1 to 5 each), with one piece of evidence for each score. 3. Which single capability, if improved, would most raise the hospital's ability to benefit from remote monitoring? Why? 4. Name one core rigidity the hospital should watch. 5. Write a five-line recommendation to the hospital board. ## Connections to other cards - `mba/mba-five-forces-card`: industry attractiveness (outside-in) versus firm resources (inside-out); use both. - `mba/mba-value-chain-card`: the value chain is the best inventory tool for resources and capabilities, and shows how they fit together. - `mba/mba-competitive-advantage-card`: a VRIO resource matters only if it widens the gap between willingness to pay and cost compared with rivals; measure the result with ROIC against WACC. - `mba/mba-growth-strategy-card`: which resources travel to new markets or products decides which growth options are realistic (Penrose's excess resources drive growth). - `mba/mba-npv-irr-card`: imitation economics is an NPV calculation from the rival's point of view. - `mba/mba-ai-strategy-card`: data and models as resources; most AI models are imitable, proprietary data and the organisation around it may not be. - `business/swot`: VRIO gives the "strengths" quadrant a test; a strength that fails rarity is not a strategic strength. ## Common mistakes and misconceptions 1. **Listing strengths without testing them.** "Strong brand, great people" is not an analysis. Run each through the four questions with evidence. 2. **Confusing the index with the verdict.** A resource with a high composite score can still fail one test (CR-R2). The sequence decides the verdict. 3. **Calling anything valuable "rare".** Good service or a modern ERP system is valuable but usually common: that gives parity, not advantage. 4. **Forgetting substitutes.** A rival may not copy your sales force but may reach the same customers online. Ask "how else could a rival deliver the same benefit?". 5. **Assuming patents last forever.** Patents expire, can be designed around and can be challenged. Check expiry dates and design-around evidence. 6. **Ignoring organisation.** Many firms own valuable, rare, hard-to-copy assets they do not use (data in silos, research that never reaches a product). "O" is where most management action lies. 7. **Circular reasoning.** "The firm is profitable, so its resources must be valuable." Define value from the customer or cost side first. 8. **Treating the RBV as static.** A sustained advantage today may erode in three years. Add a dynamic capabilities view and a date to every score. 9. **Overlooking who captures the rent.** A star team that can walk out takes the advantage with it, or demands it in pay. 10. **Mixing up resources and outcomes.** Market share and high margins are results, not resources. ## Self-test questions 1. State the two core assumptions of the resource-based view and explain why each is needed for an advantage to last. 2. What are the four VRIO questions, and what competitive implication follows when each one is the first to fail? 3. A resource scores V = 5, R = 1, M = 5, O = 5. What is its verdict, and why does the high imitability score not help? 4. Name three reasons, from Dierickx and Cool (1989) or Barney (1991), why a resource can be costly to imitate. 5. What are the three tests of a core competence proposed by Prahalad and Hamel (1990)? 6. Explain the difference between a capability and a dynamic capability, using Teece's sensing, seizing and transforming. 7. A rival would spend USD 10m in year 1 to copy a resource and then earn USD 3m a year in years 2 to 6. At 10%, is imitation worth it? Show the Excel formula. 8. Why does the RBV predict that a resource bought at a fair price in an open market will not create a sustained advantage? 9. Give one criticism of the RBV and one way to guard against it in a case answer. 10. In Worked example A, why is the recommended first investment in organising CR-R2 rather than in improving CR-R1? ## My notes and next steps | Date | Note or action | Done | |---|---|---| | YYYY-MM-DD | *Example:* Rescore Worked example A with my team and compare scores; discuss any gap of 2 or more | [ ] | | YYYY-MM-DD | *Example:* Apply VRIO to the company in Thursday's case, three resources, with evidence | [ ] | | YYYY-MM-DD | [Your action] | [ ] | ## Sources and further reading - Penrose, E. T. (1959). *The Theory of the Growth of the Firm*. Basil Blackwell. - Wernerfelt, B. (1984). A resource-based view of the firm. *Strategic Management Journal*, 5(2), 171-180. - Barney, J. (1991). Firm resources and sustained competitive advantage. *Journal of Management*, 17(1), 99-120. - Barney, J. B. (1995). Looking inside for competitive advantage. *Academy of Management Executive*, 9(4), 49-61. - Dierickx, I., and Cool, K. (1989). Asset stock accumulation and sustainability of competitive advantage. *Management Science*, 35(12), 1504-1511. - Lippman, S. A., and Rumelt, R. P. (1982). Uncertain imitability: an analysis of interfirm differences in efficiency under competition. *The Bell Journal of Economics*, 13(2), 418-438. - Prahalad, C. K., and Hamel, G. (1990). The core competence of the corporation. *Harvard Business Review*, 68(3), 79-91. - Leonard-Barton, D. (1992). Core capabilities and core rigidities: a paradox in managing new product development. *Strategic Management Journal*, 13(S1), 111-125. - Peteraf, M. A. (1993). The cornerstones of competitive advantage: a resource-based view. *Strategic Management Journal*, 14(3), 179-191. - Teece, D. J., Pisano, G., and Shuen, A. (1997). Dynamic capabilities and strategic management. *Strategic Management Journal*, 18(7), 509-533. - Eisenhardt, K. M., and Martin, J. A. (2000). Dynamic capabilities: what are they? *Strategic Management Journal*, 21(10-11), 1105-1121. - Priem, R. L., and Butler, J. E. (2001). Is the resource-based "view" a useful perspective for strategic management research? *Academy of Management Review*, 26(1), 22-40. - Teece, D. J. (2007). Explicating dynamic capabilities: the nature and microfoundations of (sustainable) enterprise performance. *Strategic Management Journal*, 28(13), 1319-1350. - Porter, M. E. (1980). *Competitive Strategy: Techniques for Analyzing Industries and Competitors*. Free Press. - Textbooks (further reading, by name only): Barney and Hesterly, *Strategic Management and Competitive Advantage*; Grant, *Contemporary Strategy Analysis*; Besanko, Dranove, Shanley and Schaefer, *Economics of Strategy*. - Open resource: OpenStax, *Principles of Management* (CC BY-NC-SA 4.0), chapters on strategy and competitive advantage, https://openstax.org/details/books/principles-management. ## Answer key **Worked example B.** | ID | Index | First failed test | Verdict | |---|---|---|---| | NF-R1 | $4 \times 4 \times 4 \times 2/625 \times 100 = 20.5$ | Organisation | Unexploited advantage | | NF-R3 | $4 \times 3 \times 3 \times 4/625 \times 100 = 23.0$ | None | Sustained advantage (borderline: R and M are only 3) | | NF-R4 | (given) 5.8 | Rarity | Competitive parity | "Organised" for NF-R1 would mean repair data captured digitally at every store, a monthly feed to the design team, a target for design changes that cut failure rates, and a resale channel for repaired items. Imitation economics: (2) PV factor 4.6585. (3) $NPV_{\text{imit}}$ = USD -0.15m. (4) Break-even margin = 5.28 / 4.6585 = USD 1.13m a year, just above the USD 1.1m the rival expects. (5) Imitation is close to break-even, so Northfield should organise the repair data and resale channel quickly to raise the value of the service and the bar a rival must clear, rather than assume it is safe. **Exercise C (model answer).** (1) Cardiology team: V4 R3 M4 O3, sustained but organisation borderline; primary-care relationships: V4 R4 M5 O3, sustained (socially complex, built over 20 years); health record set-up: V2, disadvantage (limited data access slows remote monitoring); annual capital process: V2, disadvantage for fast-moving opportunities. (2) Sensing 3 (cardiologists follow the technology), seizing 2 (annual budget cycle, no pilot fund), transforming 2 (no history of closing or merging services). (3) Seizing: a pilot fund and a cross-department team for remote monitoring, because sensing is already adequate and the relationships with primary care are the asset that remote monitoring needs. (4) The department-by-department budget process and the inpatient-centred revenue model. (5) Recommend a funded 12-month remote-monitoring pilot with three primary-care practices, a data-access upgrade, and quarterly board review. **Self-test.** 1. Heterogeneity (resources differ across firms, so some firms can do things others cannot) and immobility (resources cannot be bought or moved freely, so the difference persists). Without heterogeneity there is no advantage; without immobility it is competed away. 2. Value, rarity, imitability, organisation. First failure at value: disadvantage; at rarity: parity; at imitability: temporary advantage; at organisation: unexploited advantage; none: sustained advantage. 3. Competitive parity. It fails rarity first: if many rivals already have it, the fact that it would be hard to copy is irrelevant, because nobody needs to copy it. 4. Any three of: time compression diseconomies, asset mass efficiencies, interconnectedness of asset stocks, asset erosion, causal ambiguity (Dierickx and Cool 1989); unique historical conditions, social complexity (Barney 1991). 5. Access to a wide variety of markets; a significant contribution to the customer's perceived benefit; difficult for competitors to imitate. 6. A capability lets the firm perform an activity well today (for example, run warehouses efficiently). A dynamic capability changes the firm's resource base: sensing new opportunities, seizing them with investment and business models, and transforming the organisation and assets as conditions change. 7. Cash flows: -10 in year 1, 3 in years 2 to 6. `=NPV(10%, -10, 3, 3, 3, 3, 3)` = USD 1.25m. Positive, so imitation pays at these assumptions (the PV of the inflows, USD 10.34m, exceeds the PV of the build cost, USD 9.09m). 8. In a competitive market for the resource, buyers bid its price up to the present value of the returns it brings, so the buyer earns only a normal return. Rents arise when the firm acquires the resource for less than its value (better information, luck, or complementary assets that only it has), which is Peteraf's ex ante limit to competition. 9. Tautology (value inferred from success). Guard: define value in terms of a measurable customer benefit or cost saving, estimated independently of the firm's profit. 10. CR-R1 is imitable, so investment there buys only a temporary lead. CR-R2 already passes value, rarity and imitability; fixing organisation turns a high-potential asset into a sustained advantage at relatively low cost. The imitation figures in question 7 come from the same method as Worked example A; recompute them with the Excel formula shown. ## Revision history | Version | Date | Author | Change summary | |---|---|---|---| | 0.1 | YYYY-MM-DD | [Your name] | First draft from the template | | 0.2 | YYYY-MM-DD | [Your name] | *Example:* Rescored after team discussion, CR-R2 organisation score raised after data platform launch | ## Standard and licence note Based on the published academic literature on the resource-based view (Penrose 1959; Wernerfelt 1984; Barney 1991 and 1995; Peteraf 1993; Teece, Pisano and Shuen 1997). The text, the scoring method, the examples and the numbers are original; the composite VRIO index is a teaching device of this card, not part of the cited works. The card has no affiliation with any school, publisher or author named. Check the original works when you cite them. Template licence: MIT.