If all investors use mean-variance analysis, apply it to the same universe of securities with an identical time horizon, use the same security analysis, and experience identical net returns from the same securities, they will hold the portfolio as the optimal risky portfolio.

Consider the labor market for computer programmers. during the late 1990s, the value of the marginal product of all computer programmers increased dramatically. holding all else equal, what effect did this process have on the labor market for computer programmers? the equilibrium wagea. increased, and the equilibrium quantity of labor decreased. b. decreased, and the equilibrium quantity of labor increased. c. increased, and the equilibrium quantity of labor increased. d. decreased, and the equilibrium quantity of labor decreased.