The importance of the results reported in this paper will depend upon the researcher’s objectives and the availability of data. If prices are available utilizing the price information (as share-weights) in the computation of productivity measures, either by the index and or linear programming approach will provide similar productivity measures. However, for the unpriced, non-market goods, like environmental pollution, the unavailability of price information would motivate researchers to apply the programming approach to estimate the productivity measures as well as to recover the shadow prices.