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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. 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.
    2. 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.
    3. 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.
    4. 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.
    5. 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.
    6. Susan Averett, 2001. "Moonlighting: multiple motives and gender differences," Applied Economics, Taylor & Francis Journals, vol. 33(11), pages 1391-1410.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Hirsch, Barry & Husain, Muhammad M. & Winters, John V., 2016. "The Puzzling Fixity of Multiple Job Holding across Regions and Labor Markets," IZA Discussion Papers 9631, Institute of Labor Economics (IZA).
    2. Jacob Nunoo & Kwabena Nkansah Darfor & Isaac Koomson & Abigail Arthur, 2018. "Employment security and workers’ moonlighting behavior in Ghana," Journal of Economic Studies, Emerald Group Publishing Limited, vol. 45(1), pages 144-155, January.
    3. Meriem Hodge Doucette & W. David Bradford, 2019. "Dual Job Holding and the Gig Economy: Allocation of Effort across Primary and Gig Jobs," Southern Economic Journal, John Wiley & Sons, vol. 85(4), pages 1217-1242, April.
    4. Alisa Tazhitdinova, 2022. "Increasing Hours Worked: Moonlighting Responses to a Large Tax Reform," American Economic Journal: Economic Policy, American Economic Association, vol. 14(1), pages 473-500, February.
    5. Barry T. Hirsch & Muhammad M. Husain & John V. Winters, 2016. "Multiple job holding, local labor markets, and the business cycle," IZA Journal of Labor Economics, Springer;Forschungsinstitut zur Zukunft der Arbeit GmbH (IZA), vol. 5(1), pages 1-29, December.
    6. Jacob Nunoo & Kwabena Nkansah Darfor & Isaac Koomson & Abigail Arthur, 2016. "Employment Security and Workers’ Moonlighting Behaviour in Ghana," Research Africa Network Working Papers 16/006, Research Africa Network (RAN).
    7. Gaston Brice Nkoumou Ngoa & Roger Tsafack Nanfosso & Benjamin Fomba Kamga, 2021. "Le recours des professionnels de santé à la pluriactivité dans un pays en développement: Le cas des métropoles du Cameroun," African Development Review, African Development Bank, vol. 33(2), pages 249-262, June.
    8. Gregory Gilpin, 2018. "Policy-induced School Calendar Changes and Teacher Moonlighting," CAEPR Working Papers 2018-009, Center for Applied Economics and Policy Research, Department of Economics, Indiana University Bloomington.
    9. Etienne Lalé, 2019. "Search and Multiple Jobholding," Upjohn Working Papers 19-305, W.E. Upjohn Institute for Employment Research.
    10. Terence C. Cheng & Guyonne Kalb & Anthony Scott, 2018. "Public, private or both? Analyzing factors influencing the labour supply of medical specialists," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 51(2), pages 660-692, May.
    11. Merja Kauhanen, 2021. "Multiple job holding in the changing labour market Рevidence from Finland," Working Papers 331, Ty̦n ja talouden tutkimus LABORE, The Labour Institute for Economic Research LABORE.
    12. Etienne Lale, 2022. "Search and Multiple Jobholding," Working Papers 22-07, Chair in macroeconomics and forecasting, University of Quebec in Montreal's School of Management.
    13. Baah-Boateng, William & Adjei, Prince & Oduro, Abena, 2013. "Determinants of moonlighting in Ghana: an empirical investigation," MPRA Paper 109702, University Library of Munich, Germany.
    14. Pouliakas, Konstantinos & Panos, Georgios & Zangelidis, Alexandros, 2009. "The Inter-Related Dynamics of Dual Job Holding, Human Capital and Occupational Choice," MPRA Paper 16859, University Library of Munich, Germany.
    15. Sum Lo Simon Ming, 2023. "Desired work-leisure balance in a partial equilibrium job search model with multiple job holding," IZA Journal of Labor Economics, Sciendo & Forschungsinstitut zur Zukunft der Arbeit GmbH (IZA), vol. 12(1), pages 1-43, December.
    16. Mohamed Mousa & Monowar Mahmood, 2023. "Mental Illness of Management Educators: Does Holding Multiple Academic Jobs Play a Role? A Qualitative Study," Public Organization Review, Springer, vol. 23(2), pages 647-665, June.
    17. Hlouskova, Jaroslava & Tsigaris, Panagiotis, 2020. "A behavioral economic approach to multiple job holdings with leisure," IHS Working Paper Series 23, Institute for Advanced Studies.
    18. Weiguang Liu, 2023. "Preference for job diversity, mixed part‐time jobs and voluntary unemployment," Australian Economic Papers, Wiley Blackwell, vol. 62(1), pages 63-77, March.
    19. Elacqua, Gregory & Marotta, Luana, 2020. "Is working one job better than many? Assessing the impact of multiple school jobs on teacher performance in Rio de Janeiro," Economics of Education Review, Elsevier, vol. 78(C).
    20. Georgios A. Panos & Konstantinos Pouliakas & Alexandros Zangelidis, 2014. "Multiple Job Holding, Skill Diversification, and Mobility," Industrial Relations: A Journal of Economy and Society, Wiley Blackwell, vol. 53(2), pages 223-272, April.
    21. Dolado, Juan J & Felgueroso, Florentino, 2008. "Occupational Mismatch and Moonlighting Among Spanish Physicians: Do Couples Matter?," CEPR Discussion Papers 6803, C.E.P.R. Discussion Papers.
    22. Gregory Gilpin, 2020. "Policy‐Induced School Calendar Changes and Teacher Moonlighting," Southern Economic Journal, John Wiley & Sons, vol. 86(3), pages 989-1018, January.
    23. Barry T. Hirsch & Muhammad M. Husain & John V. Winters, 2017. "The Puzzling Pattern of Multiple Job Holding across U.S. Labor Markets," Southern Economic Journal, John Wiley & Sons, vol. 84(1), pages 26-51, July.
    24. Catalina Amuedo‐Dorantes & Jean Kimmel, 2009. "Moonlighting Over The Business Cycle," Economic Inquiry, Western Economic Association International, vol. 47(4), pages 754-765, October.
    25. Noor Jehan & Himayatullah Khan & Muhammad Arif, 2019. "Happy Supplying? An Overview of Moonlighting by University Teachers," Global Economics Review, Humanity Only, vol. 4(1), pages 22-32, March.

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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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