Determination of Returns to Scale in the existence of undesirable (bad) outputs

Firms usually produce not only desirable but also undesirable outputs as a result of their economic activities. This study explore RTS in which outputs are classifiedinto desirable(good) and undesirable(bad) outputs, using, an efficient algorithm which is capable of determining scale elasticity in the existence of undesirable output.

کلیدواژه ها:

DEA ، Returns to scale ، undesirable (bad) outputs ، simplex algorithm