Several pharmaceutical firms have seen the value of patent protection erode in the face of new drugs that are based on different production processes and act in different ways, but can be used in similar treatment regimes. This example illustrates the lack of sustainable competitive advantage being offered by the product.

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The fourth requirement for a firm resource to be a source of sustainable competitive advantage is that there must be no strategically equivalent valuable resources that are themselves not rare or inimitable. Two valuable firm resources (or two bundles of resources) are strategically equivalent when each one can be exploited separately to implement the same strategies. several pharmaceutical firms have seen the value of patent protection erode in the face of new drugs that are based on different production processes and act in different ways, but can be used in similar treatment regimes. The coming years will likely see even more radical change in the pharmaceutical industry as the substitution of genetic therapies eliminates certain uses of chemotherapy.

Several Pharmaceutical Firms Have Seen the Value of Patent Protection