It is important here to clarify the difference between 'strategic assets' and 'core competences.' Strategic assets are assets that underpin a firm's cost or differentiation advantage in a particular market and that are imperfectly imitable, imperfectly substitutable and imperfectly tradeable. These assets also tend to be market- specific. An example would be Honda's dealer network distributing and servicing its motorbikes. On the other hand, core competences are the pool of experience, knowledge and systems, etc. that can be deployed to reduce the cost or time required in creating or expanding the stock of strategic assets.
p. 164 - "Related diversification, core competences and corporate performance", 1994