11. Calculating the price elasticity of supply Deborah is a college student who lives in San Francisco and does some consulting work for extra cash. At a wage of $30 per hour, she is willing to work 3 hours per week. At $50 per hour, she is willing to work 7 hours per week. Using the midpoint method, the elasticity of Deborah’s labor supply between the wages of $30 and $50 per hour is approximately , which means that Deborah’s supply of labor over this wage range is