Question: (10 points) In the Data Envelope Analysis (DEA), the model requires w w1+w2+....wk = 1, and wj >= 0, fpr j =1,......,k That is, the

  1. (10 points) In the Data Envelope Analysis (DEA), the model requires w

w1+w2+....wk = 1, and wj >= 0, fpr j =1,......,k

That is, the sum of all the weights equals 1 and each weight is nonnegative. Why do we need these constraints, and do we really need them?

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