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+)
Consumption-Based Model and Basic Pricing model Basic question to decide for an investor: (1) how much to save; (2)how much to consume; (3)what portfolio of assets to hold. Pricing equation come from the first order condition for this decision
Introduction Overview of investment styles; Empirical evidence on returns of small capitalization firms and value stocks; How to identify investment styles of a mutual fund Characteristic-based style analysis Return-based style analysis Style benchmarks
Fourth Edition Advantages of the Single Index Model Reduces the number of inputs for diversification. Portfolio of 50 assets 50 expected returns;50 variances 1225 covariance. too difficult a task