Betting against correlation: Testing theories of the low-risk effect

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Betting against correlation: Testing theories of the low-risk effect
CliffAsness, Andrea Frazzini, Niels Joachim Gormsen,Lasse Heje Pedersen

We test whether the low-risk effect is driven by leverage constraints and, thus, risk should be measured using beta versus behavioral effects and, thus, risk should be measured by idiosyncratic risk. Beta depends on volatility and correlation, with only volatility related to idiosyncratic risk. We introduce a new betting against correlation (BAC) factor that is par- ticularly suited to differentiate between leverage constraints and behavioral explanations. BAC produces strong performance in the US and internationally, supporting leverage con- straint theories. Similarly, we construct the new factor SMAX to isolate lottery demand, which also produces positive returns. Consistent with both leverage and lottery theories contributing to the low-risk effect, we find that BAC is related to margin debt while id- iosyncratic risk factors are related to sentiment.
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