Asset Pricing with Unsystematic Risk
Speaker(s)Irina Zviadadze (HEC Paris, France)
LocationTinbergen Institute Amsterdam, room 1.01
Date and time
December 06, 2023
12:45 - 14:00
We revise the conventional risk-return tradeoff that is exclusively based on systematic risk. We derive the stochastic discount factor (SDF) implied by the arbitrage-pricing theory, in which we explicitly allow compensation also for unsystematic risk while preserving no arbitrage. Empirically, we find that about 70% of this SDF's variation is explained by its unsystematic-risk component. Our SDF dominates traditional factor models and the state-of-the-art models of latent systematic risk in pricing a cross-section of assets in and out of sample. We outline an example of an equilibrium theory consistent with nonzero compensation for unsystematic risk and the specification of our SDF.