Susan is a stay-at-home parent who lives in San Francisco and does some consulting work for extra cash. At a wage of $40 per hour, she is willing to work 6 hours per week. At $60 per hour, she is willing to work 16 hours per week. Using the midpoint method, the elasticity of Susan’s labor supply between the wages of $40 and $60 per hour is approximately (0.04 / 0.44 / 2.27 / 22) , which means that Susan’s supply of labor over this wage range is (elastic or inelastic) .