The phrase "a source of differentiation" is correct and usable in written English.
It can be used when discussing factors that distinguish one entity, product, or service from another in a competitive context.
Example: "In today's market, innovation is often seen as a source of differentiation that can attract customers."
Alternatives: "a means of distinction" or "a factor of uniqueness."
After-sales services can be a source of differentiation as well.
Keep in mind this is a dedicated 'relationship manager' which is what the banks tell me is a source of differentiation in the customer experience.
Another avenue of research is to consider the role of phenotypic plasticity as a source of differentiation among workers.
The Mitchell et al. study shows that this is owing to the role of negative affective tone being a source of differentiation and dissatisfaction that encourages critical discussion and delays premature consensus in the presence of transformational leadership.
It has been suggested that knowledge has the greatest ability of all resources to serve as a source of sustainable differentiation due to immobility (McEvily and Chakravarthy 2002) and general applicability (Miller and Shamsie 1996).
The inferred distribution of paralogs among populations is congruent with taxonomy and shows that GBS could be used to examine recent gene duplication as a source of genomic differentiation of nonmodel species.
A third source of differentiation, necessarily overlooked in comparison of orthologous sequences, is the differential duplication and deletion of chromosomal regions [8], [9].
Consequently, it may be considered that the levels of distress, despite constituting a major source of differentiation between males and females, is in no way a means to discriminate or differentiate between the three categories of abuse considered within this study.
It's also not easy — which makes it a good source of differentiation versus your competitors.
That workforce will be a vital source of differentiation, and inclusion and diversity will be at the forefront of making it happen.
The way designers deal with emotions could be an important source of differentiation in highly competitive markets like the car industry.
