Chapter 5 - 11. Calculating the price elasticity of supply

11. Calculating the price elasticity of supply Cho is a graduate student living in Detroit who coaches youth soccer to supplement their normal income. At an hourly wage rate of $15, they are willing to coach 3 hours per week. Upping the wage to $20 per hour, they are willing to coach 7 hours per week. Using the midpoint method, the elasticity of Cho's labor supply between the wages of $15 and $20 per hour is approximately which means that Cho's supply of labor over this wage range is