After-Work Lecture: When does Portfolio Optimization Pay?
After-Work Lecture: When does Portfolio Optimization Pay?
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Passive investments have gained wide acceptance in the investor community. Yet the question is to what extent this is costly for investors. We address two issues: 1) Return predictability and portfolio choice. Return predictability relies primarily on the Fama-French factors and the Carhart factor. Do these factors yield free lunches? 2) Risk preferences and portfolio choice. A simple adjustment for differences in risk preferences turns out to be costless unless approximate arbitrage opportunities exist.