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Suppose that U = (0.2q1 -1 + 0.8q2 -1 ) -1 i. What is the elasticity...

Suppose that U = (0.2q1 -1 + 0.8q2 -1 ) -1 i. What is the elasticity of substitution? ii. If q1=0.5, and q2 = 1,

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