If a monopolist faces the linear demand curve \(p=12-Q\), what is its level of output, revenue, and the elasticity of demand when \(M R=0\) ? If a monopolist were to decrease its output from 4 to 2 units, what would happen to its revenue, and what is its marginal revenue and the elasticity of demand at those two levels of output? What does a comparison of your results tell you about where the monopoly operates on its demand curve?