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Table 3 Substitutability of the two retailers

From: Pricing Decision in a Two-Echelon Supply Chain with Competing Retailers Under Uncertain Environment

Substitutability \(\tilde {\gamma }\) Expected value \(E[\tilde {\gamma }]/E[\tilde {\beta }]\)
Low (15,35) 25 0.25
Medium (40,60) 50 0.50
High (70,80) 75 0.75