Labor Income Risk and the Cross-Section of Expected Returns

Paper: arXiv 2301.09173

Authors: Mykola Pinchuk

Abstract

This paper explores asset pricing implications of unemployment risk from sectoral shifts. I proxy for this risk using cross-industry dispersion (CID), defined as a mean absolute deviation of returns of 49 industry portfolios. CID peaks during periods of accelerated sectoral reallocation and heightened uncertainty. I find that expected stock returns are related cross-sectionally to the sensitivities of returns to innovations in CID. Annualized returns of the stocks with high sensitivity to CID are 5.9% lower than the returns of the stocks with low sensitivity. Abnormal returns with respect to the best factor model are 3.5%, suggesting that common factors can not explain this return spread. Stocks with high sensitivity to CID are likely to be the stocks, which benefited from sectoral shifts. CID positively predicts unemployment through its long-term component, consistent with the hypothesis that CID is a proxy for unemployment risk from sectoral shifts.

Complexity vs Empirical Score

• Math Complexity: 4.5/10
• Empirical Rigor: 6.0/10 (capped from 7.5: transaction costs not modelled; no out-of-sample test; see penalty flags)
• Quadrant: Street Traders — practical and empirical, lighter on theory

Why this score: The paper introduces a compelling economic proxy—Cross-Industry Dispersion (CID)—for unemployment risk arising from sectoral shifts. It delivers strong empirical evidence of a cross-sectional return premium that existing multi-factor models fail to explain, relying on rigorous statistical testing over complex theoretical mathematical proofs.

Research Flowchart

  flowchart TD
    A[Research Goal: Assess asset pricing implications of unemployment risk from sectoral shifts] --> B[Data: 49 Industry Portfolios & Macro Economic Data]
    B --> C[Calculate Cross-Industry Dispersion 'CID' via Mean Absolute Deviation]
    C --> D[Estimate Stock Return Sensitivities to CID Innovations]
    D --> E[Evaluate Cross-Sectional Returns & Factor Models]
    E --> F[Findings: High CID sensitivity stocks have 5.9% lower annualized returns]
    E --> G[Outcomes: 3.5% alpha unexplainable by factors; long-term CID predicts unemployment]