Elizabeth Goodrick and Trish Reay (2011) wrote an interesting article where they investigated historical documents about the work of US pharmacists with the purpose of showing "how professional work can reflect multiple institutional logics" (p. 372). They used four logics as references: Professional, corporate, market, and state logics.
They measured the strength of each logic "by evaluating the extent to which the pharmacists’ practices as indicated in historical accounts were consistent with the practices implied by the ideal type of the logic." (p. 387). This means that the closeness of the actual work practices of the pharmacists in each historical era to the ideal type of each logic reflects the strength of each logic. To numerically evaluate this, they used a "standard scale of 1 to 5, where 1 indicates very low consistency (or similarity) and 5 indicates very high consistency (or similarity)" (p. 387).
Any other ideas on how to do this? Or are you aware of any other nice studies that have done this?