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The Economics of Dual Job Holding: A Job Portfolio Model of Labor Supply

Author

Listed:
  • Renna, Francesco

    (University of Akron)

  • Oaxaca, Ronald L.

    (University of Arizona)

Abstract

In this paper we develop a job portfolio model of dual job holding based on a Stone-Geary utility function. We derive the associated Slutsky equation components. Because the job portfolio model applies only to unconstrained dual jobholders, we separate individuals who moonlight because of an hours constraint from dual jobholders who work on two job for reasons different from an hours constraint. Income and wage elasticities are estimated for workers without hours constraints using data from the May 1991 supplement to the Current Population Survey. Our study finds that the income and compensated wage elasticities are much larger for labor supply to job 2 compared with job 1.

Suggested Citation

  • Renna, Francesco & Oaxaca, Ronald L., 2006. "The Economics of Dual Job Holding: A Job Portfolio Model of Labor Supply," IZA Discussion Papers 1915, Institute of Labor Economics (IZA).
    • Handle: RePEc:iza:izadps:dp1915
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    References listed on IDEAS

    as
    1. Smith Conway, Karen & Kimmel, Jean, 1998. "Male labor supply estimates and the decision to moonlight," Labour Economics, Elsevier, vol. 5(2), pages 135-166, June.
    2. Susan Averett, 2001. "Moonlighting: multiple motives and gender differences," Applied Economics, Taylor & Francis Journals, vol. 33(11), pages 1391-1410.
    3. Paxson, Christina H & Sicherman, Nachum, 1996. "The Dynamics of Dual Job Holding and Job Mobility," Journal of Labor Economics, University of Chicago Press, vol. 14(3), pages 357-393, July.
    4. Jean Kimmel & Karen Smith Conway, 1995. "Who Moonlights and Why?: Evidence from the SIPP," Upjohn Working Papers 95-40, W.E. Upjohn Institute for Employment Research.
    5. Krishnan, Pramila, 1990. "The Economics of Moonlighting: A Double Self-Selection Model," The Review of Economics and Statistics, MIT Press, vol. 72(2), pages 361-367, May.
    6. W. David Allen, 1998. "The moonlighting decision of unmarried men and women: Family and labor market influences," Atlantic Economic Journal, Springer;International Atlantic Economic Society, vol. 26(2), pages 190-205, June.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    dual job; labor supply; Stone-Geary;
    All these keywords.

    JEL classification:

    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply

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