The resource-based view (RBV) is an economic tool used to determine the strategic resources available to a firm. The fundamental principle of the RBV is that the basis for a competitive advantage of a firm lies primarily in the application of the bundle of valuable resources at the firm’s disposal (Wernerfelt, 1984, p172; Rumelt, 1984, p557-558). To transform a short-run competitive advantage into a sustained competitive advantage requires that these resources are heterogeneous in nature and not perfectly mobile (Barney, 1991, p105-106; Peteraf, 1993, p180). Effectively, this translates into valuable resources that are neither perfectly imitable nor substitutable without great effort (Hoopes, 2003, p891; Barney, 1991, p117). If these conditions hold, the firm’s bundle of resources can assist the firm sustaining above average returns.
The key points of the theory are:
1) Identify the firm’s potential key resources
2) Evaluate whether these resources fulfill the following (VRIN) criteria:
- Valuable - A resource must enable a firm to employ a value-creating strategy, by either outperforming its competitors or reduce its own weaknesses (Barney, 1991, p99; Amit and Shoemaker, 1993, p36). Relevant in this perspective is that the transaction costs associated with the investment in the resource cannot be higher than the discounted future rents that flow out of the value-creating strategy (Mahoney and Prahalad, 1992, p370; Conner, 1992, p131).
- Rare - To be of value, a resource must be by definition rare. In a perfectly competitive strategic factor market for a resource, the price of the resource will be a reflection of the expected discounted future above-average returns (Barney, 1986a, p1232-1233; Dierickx and Cool, 1989, p1504; Barney, 1991, p100).
- In-imitable - If a valuable resource is controlled by only one firm it could be a source of a competitive advantage (Barney, 1991, p107). This advantage could be sustainable if competitors are not able to duplicate this strategic asset perfectly (Peteraf, 1993, p183; Barney, 1986b, p658). The term isolating mechanism was introduced by Rumelt (1984, p567) to explain why firms might not be able to imitate a resource to the degree that they are able to compete with the firm having the valuable resource (Peteraf, 1993, p182-183; Mahoney and Pandian, 1992, p371). An important underlying factor of inimitability is causal ambiguity, which occurs if the source from which a firm’s competitive advantage stems is unknown (Peteraf, 1993, p182; Lippman and Rumelt, 1982, p420). If the resource in question is knowledge-based or socially complex, causal ambiguity is more likely to occur as these types of resources are more likely to be idiosyncratic to the firm in which it resides (Peteraf, 1993, p183; Mahoney and Pandian, 1992, p365; Barney, 1991, p110). Conner and Prahalad go so far as to say knowledge-based resources are “…the essence of the resource-based perspective” (1996, p477).
- Non-substitutable - Even if a resource is rare, potentially value-creating and imperfectly imitable, an equally important aspect is lack of substitutability (Dierickx and Cool, 1989, p1509; Barney, 1991, p111). If competitors are able to counter the firm’s value-creating strategy with a substitute, prices are driven down to the point that the price equals the discounted future rents (Barney, 1986a, p1233; Conner, 1991, p137), resulting in zero economic profits.
The above-mentioned characteristics are individually necessary, but not sufficient conditions for a sustained competitive advantage (Dierickx and Cool, 1989, p1506; Priem and Butler, 2001a, p25). Within the framework of the resource-based view, the chain is as strong as its weakest link and therefore dependent on the resource displaying each of the four characteristics to be a possible source of a sustainable competitive advantage (Barney, 1991, 105-107).
3) Care for and protect resources that possess these evaluations
Priem and Butler (2001) made four key criticisms:
- The RBV is tautological, or self-verifying. Barney has defined a competitive advantage as a value-creating strategy that is based on resources that are, among other characteristics, valuable (1991, p106). This reasoning is circular and therefore operationally invalid (Priem and Butler, 2001a, p31). For more info on the tautology, see also Collins, 1994
- Different resource configurations can generate the same value for firms and thus would not be competitive advantage
- The role of product markets is underdeveloped in the argument
- The theory has limited prescriptive implications
