The figure on the below depicts the labor market initially in equilibrium with employment at 100 million jobs and a wage of $10. The Labor Market Wage 20- 18- 16- 14- 12- 10- 8- 6- 4- 2- Labor supply curve Labor demand curve 20 40 60 80 100 120 140 160 180 200 Quantity of labor (millions) Suppose traditional monetary and fiscal policy has had only limited success in promoting higher employment. Governments sometimes seek to directly stimulate hiring by the private sector by engineering a shift in the labor demand curve. In the graph of the market, suppose the government seeks to directly stimulate the employment of an additional 20 million workers. According to the graph, the targeted increase in employment can be achieved with the payment of a subsidy to employers of ____________ per worker