Predictions and applications CAPM: in market equilibrium, investors are only rewarded for bearing the market risk; APT: in the absence of arbitrage, investors are only rewarded for bearing the factor risk Applications: ---professional portfolio managers: evaluating security returns and
Discount model is in terms of conditional moments The first order condition is,u'( BE, [u'(c )x 1] The expectation is conditional expectation on investor's time t information; The basic pricing equation is P, =E, (m +1X1+)