TY  - JOUR
AU  - Davis,Steven J.
AU  - Willen,Paul
TI  - Occupation-Level Income Shocks and Asset Returns: Their Covariance and Implications for Portfolio Choice
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 7905
PY  - 2000
Y2  - September 2000
UR  - http://www.nber.org/papers/w7905
L1  - http://www.nber.org/papers/w7905.pdf
N1  - Author contact info:
Steven J. Davis
Booth School of Business
The University of Chicago
5807 South Woodlawn Avenue
Chicago, IL 60637
Tel: 773/702-7312
Fax: 773/834-0733
E-Mail: Steven.Davis@ChicagoBooth.edu

Paul S. Willen
Federal Reserve Bank of Boston
600 Atlantic Avenue
Boston, MA  02210-2204
Tel: 617/973-3149
Fax: 617/973-2123
E-Mail: willen968@gmail.com
AB  - This paper develops and applies a simple graphical approach to portfolio selection that accounts for covariance between asset returns and an investor's labor income. Our graphical approach easily handles income shocks that are partly hedgable, multiple risky assets, many periods and life cycle considerations. We apply the approach to occupation-level components of individual income innovations estimated from repeated cross sections of the Current Population Survey. We characterize several properties of these innovations, including their covariance with aggregate equity returns, long-term bond returns and returns on several other assets. Aggregate equity returns are uncorrelated with the occupation-level income innovations, but a portfolio formed on firm size is significantly correlated with income innovations for several occupations, and so are selected industry-level equity portfolios. An application of the theory to the empirical results shows (a) large predicted levels of risky asset holdings compared to observed levels, (b) considerable variation in optimal portfolio allocations over the life cycle, and (c) large departures from the two-fund separation principle.
ER  -