Caves DW, LR Christensen and WE Diewert (1982). “Multilateral Comparisons of Output, Input, and Productivity Using Superlative Index Numbers.” J Econometrics 92: 73-86.

Caves DW, LR Christensen and WE Diewert (1982). “Multilateral Comparisons of Output, Input, and Productivity Using Superlative Index Numbers.” J Econometrics 92: 73-86.

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