In a hypothetical economy, there is a simple proportiona

In a hypothetical economy, there is a simple proportional tax on wages imposed at a rate t. There are plenty of jobs around; so if people enter the labor force, they can find work. We define total government receipts from the tax as T = t W L where t = the tax rate, W = the gross wage rate, and L = the total supply of labor. The net wage rate is Wn = (1 - t) W The elasticity of labor supply is defined as Suppose t was cut from .25 to .20. For such a cut to increase total government receipts from the tax, how elastic must the supply of labor be? (Assume a constant gross wage.) What does your answer imply about the supply-side assertion that a cut in taxes can increase tax revenues?