What is scale efficiency in DEA ?

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Burak Keskin

Scale efficiency shows that whether a DMU operates maximum scale or not. Scale efficiency is calculated dividing CRS by VRS.

Ehsan Khalili

scale efficiency mean whether a DMU can expand its scale or not.

to calculation the scale efficiency, you can run a DEA with constant return to scale and variable return to scale and use below formula:

scale efficiency = (DEAcrs)/(DEAvrs)

I wish it could help...

Ehsan