For the supply curve shown in Figure 4.13, calculate the elasticity of supply when P = 6.Not all supply curves, however, have the property that price elasticity declines as quantity rises. Consider for example, the supply curve shown in Figure 4.14. Because the ratio P/Q is the same at every point along this supply curve, and because the slope of the supply curve is also constant, price elasticity of supply will take exactly the same value at every point along this curve. At A, for example, price elasticity of supply = (P/Q) * (1/slope) = (4/12) * (12/4) = 1 again.
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