A growing list of proposed factors is causing factor and model selection problems in asset pricing research and practice. This paper mitigates these problems by combining the CRSP market index with multiple factors to create a single multifactor market index. Empirical tests of multifactor...

This paper combines the CRSP market index with multiple factors to create a single multifactor market index. Empirical tests of different multifactor market indexes indicate that: (1) Sharpe ratios substantially increase and GRS test statistics decrease as multifactors are incrementally added to...

Part I: Introduction -- Chapter 1: Portfolio Theory and Practice -- Part II: Previous Asset Pricing Models -- Chapter 2: General Equilibrium Asset Pricing Models -- Chapter 3: Multifactor Asset Pricing Models -- Part III: The ZCAPM -- Chapter 4: A New Asset Pricing Model: The ZCAPM -- Chapter 5:...