Consider that the value of the firm is as follows: 1 1 + R where R is the risk adjusted return on stock prices (R = r + ); the expected future value of the firm is EtVt+1 = qt (Kt + It), and the adjustment costs c(It) take the following form: c(It) -In+1 with n>0. Vt = [EII - It c(It) + EtV+1] a n+1 Derive an expression for investment as a function of qt. How does the sensitivity of It to qt depend on a and n? Give a brief verbal explanation of the idea and economic mechanisms underlying the q- theory of investment.