Robust design optimization of dynamic and static manufacturing processes using the stochastic frontier model

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Table 2

Data formatting for Frontier 4.1^® at a signal level S = s.

	Y_jer	x₁	x₂	………	x_I
DMU₁	Y_j11s	x₁₁	x₂₁	………	x_I1
………	………	………	………	………	………
………	………	………	………	………	………
DMU_E	Y_jE1s	x_1E	x_2E	………	x_IE
………	………	………	………	………	………
………	………	………	………	………	………
DMU₁	Y_j1Rs	x₁₁	x₂₁	………	x_I1
….…	………	………	………	………	………
….…	………	………	………	………	………
DMU_E	Y_jERs	x_1E	x_2E	………	x_IE

*i: process inputs, j: process output, e: execution (run), and r: replication.

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