Concise Theory of Resource Based Theory
The resource-based view (RBV) argues that firms possess resources, a subset of which enable them to achieve competitive advantage, and a subset of those that lead to superior long-term performance. Resources that are valuable and rare can lead to the creation of competitive advantage. That advantage can be sustained over longer time periods to the extent that the firm is able to protect against resource imitation, transfer, or substitution.

- Valuable
- Rare
- Less substituable
- Unimitability
- Low Mobility
These are the major characterstics of resource which helps organisation to attain a competitive advantage in a long term and seems quite justifiable too . For eg , one of the major factor ensuring sustainability of oil companies and economies is the scarcity of resource ie. crude oil which are valuable , rare, less subtituable, unimmitable and ofcourse less mobility. Certainly there are lots of entry barrier in this industry because of the nature of the resource expertise needed.
Let us analyse the characterstics of knowledge and compare with characterstics as resource. There are few questions which comes to my mind?
1. Can knowledge be rare in the long term to sustain competitive advantage?
2. Whether it is difficult to transfer knowledge?
3. Can Knolwedge be imitated?
4. Can knowledge be rare?
5. Can knowledge be substituted?
Well when I try to answer these questions, I personally feel it depends on the nature of organisation we are talking point keeping other factors constant. For eg: In auto mobile industries quality of raw materials, low cost high quality manufacturing unit, effecient supply chain management can be key to the competetive advantage. One of the key strategic advantage is its reach to global market with with manufacturing and assembling plant in strategically located places and quality units to produce low cost, fuel effecient and good design cars. Because of these resources they posses, they were able to gain the bigger pie of market share. No doubt , knowledge is key in this and is embedded in all the stages but clearly not as a key resource of the firm.
Now lets take another example of Management consulting company ? Just to start with why Mckinsey or Citi Finance group is considered as best management consultant group and organisations are willing to pay bigger fee to get thier serivces in respect to other firm available at their cheaper cost. what does make them so distinct? What is their key resource that other firms dont have or taking time to build up? The one thing comes to the mind is the knowledge base they have created with their long history behind them. But again Financial resource and corporate culture can be critical to ensure the long term sustainability. Certainly knowledge is a key resource for them with back stopping from other resources.
So, what I conclude is both resource based theory and knowledge based theory operates together in all the firms irrespective of industry and only difference is based on the nature of the organisation, key resources can be different. Some companies phyical and financial resource can be dominant factor for the sustainability while for some knowldege can be dominant resource for sustainability in long term.