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Peers at Work

Author

Listed:
  • Moretti, Enrico
  • Mas, Alexandre
Abstract
We investigate how and why the productivity of a worker varies as a function of the productivity of her co-workers in a group production process. In theory, the introduction of a high productivity worker could lower the effort of incumbent workers because of free riding; or it could increase the effort of incumbent workers because of peer effects induced by social norms, social pressure, or learning. Using scanner level data, we measure high frequency, worker-level productivity of checkers for a large grocery chain. Because of the firm's scheduling policy, the timing of within-day changes in personnel is unsystematic, a feature for which we find consistent support in the data. We find strong evidence of positive productivity spillovers from the introduction of highly productive personnel into a shift. A 10% increase in average co-worker permanent productivity is associated with 1.7% increase in a worker's effort. Most of this peer effect arises from low productivity workers benefiting from the presence of high productivity workers. Therefore, the optimal mix of workers in a given shift is the one that maximizes skill diversity. In order to explain the mechanism that generates the peer effect, we examine whether effort depends on workers' ability to monitor one another due to their spatial arrangement, and whether effort is affected by the time workers have previously spent working together. We find that a given worker's effort is positively related to the presence and speed of workers who face him, but not the presence and speed of workers whom he faces (and do not face him). In addition, workers respond more to the presence of co-workers with whom they frequently overlap. These patterns indicate that these individuals are motivated by social pressure and mutual monitoring, and suggest that social preferences can play an important role in inducing effort, even when economic incentives are limited.

Suggested Citation

  • Moretti, Enrico & Mas, Alexandre, 2006. "Peers at Work," CEPR Discussion Papers 5870, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:5870
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    as
    1. Bryan S. Graham, 2008. "Identifying Social Interactions Through Conditional Variance Restrictions," Econometrica, Econometric Society, vol. 76(3), pages 643-660, May.
    2. Gary Charness & Matthew Rabin, 2002. "Understanding Social Preferences with Simple Tests," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 117(3), pages 817-869.
    3. Andrea Ichino & Giovanni Maggi, 2000. "Work Environment and Individual Background: Explaining Regional Shirking Differentials in a Large Italian Firm," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 115(3), pages 1057-1090.
    4. Brock, William A. & Durlauf, Steven N., 2001. "Interactions-based models," Handbook of Econometrics, in: J.J. Heckman & E.E. Leamer (ed.), Handbook of Econometrics, edition 1, volume 5, chapter 54, pages 3297-3380, Elsevier.
    5. Encinosa III, William E. & Gaynor, Martin & Rebitzer, James B., 2007. "The sociology of groups and the economics of incentives: Theory and evidence on compensation systems," Journal of Economic Behavior & Organization, Elsevier, vol. 62(2), pages 187-214, February.
    6. Charness, Gary & Dufwenberg, Martin, 2003. "Promises & Partnership," Research Papers in Economics 2003:3, Stockholm University, Department of Economics.
    7. Ernst Fehr & Simon Gachter & Georg Kirchsteiger, 1997. "Reciprocity as a Contract Enforcement Device: Experimental Evidence," Econometrica, Econometric Society, vol. 65(4), pages 833-860, July.
    8. Oriana Bandiera & Iwan Barankay & Imran Rasul, 2005. "Social Preferences and the Response to Incentives: Evidence from Personnel Data," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 120(3), pages 917-962.
    9. Armin Falk & Ernst Fehr & Urs Fischbacher, "undated". "Driving Forces of Informal Sanctions," IEW - Working Papers 059, Institute for Empirical Research in Economics - University of Zurich.
    10. Moretti, Enrico, 2004. "Estimating the social return to higher education: evidence from longitudinal and repeated cross-sectional data," Journal of Econometrics, Elsevier, vol. 121(1-2), pages 175-212.
    11. ,, 2004. "Problems And Solutions," Econometric Theory, Cambridge University Press, vol. 20(2), pages 427-429, April.
    12. Martin Gaynor & James B. Rebitzer & Lowell J. Taylor, 2004. "Physician Incentives in Health Maintenance Organizations," Journal of Political Economy, University of Chicago Press, vol. 112(4), pages 915-931, August.
    13. William A. Brock & Steven N. Durlauf, 2001. "Discrete Choice with Social Interactions," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 68(2), pages 235-260.
    14. Barron, John M & Gjerde, Kathy Paulson, 1997. "Peer Pressure in an Agency Relationship," Journal of Labor Economics, University of Chicago Press, vol. 15(2), pages 234-254, April.
    15. John M. Abowd & Francis Kramarz & David N. Margolis, 1999. "High Wage Workers and High Wage Firms," Econometrica, Econometric Society, vol. 67(2), pages 251-334, March.
    16. Armin Falk & Urs Fischbacher & Simon G�chter, "undated". "Living in Two Neighborhoods - Social Interactions in the Lab," IEW - Working Papers 150, Institute for Empirical Research in Economics - University of Zurich.
    17. Edward L. Glaeser & Bruce I. Sacerdote & Jose A. Scheinkman, 2003. "The Social Multiplier," Journal of the European Economic Association, MIT Press, vol. 1(2-3), pages 345-353, 04/05.
    18. Marianne Bertrand & Erzo F. P. Luttmer & Sendhil Mullainathan, 2000. "Network Effects and Welfare Cultures," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 115(3), pages 1019-1055.
    19. ,, 2004. "Problems And Solutions," Econometric Theory, Cambridge University Press, vol. 20(1), pages 223-229, February.
    20. Charles F. Manski, 2000. "Economic Analysis of Social Interactions," Journal of Economic Perspectives, American Economic Association, vol. 14(3), pages 115-136, Summer.
    21. Armin Falk & Andrea Ichino, 2006. "Clean Evidence on Peer Effects," Journal of Labor Economics, University of Chicago Press, vol. 24(1), pages 39-58, January.
    22. Edward P. Lazear, 2000. "Performance Pay and Productivity," American Economic Review, American Economic Association, vol. 90(5), pages 1346-1361, December.
    23. Gary Charness & Martin Dufwenberg, 2006. "Promises and Partnership," Econometrica, Econometric Society, vol. 74(6), pages 1579-1601, November.
    24. Oriana Bandiera & Iwan Barankay & Imran Rasul, 2010. "Social Incentives in the Workplace," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 77(2), pages 417-458.
    25. Edward P. Lazear, 2001. "Educational Production," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 116(3), pages 777-803.
    26. Enrico Moretti, 2004. "Workers' Education, Spillovers, and Productivity: Evidence from Plant-Level Production Functions," American Economic Review, American Economic Association, vol. 94(3), pages 656-690, June.
    27. William A. Brock & Steven N. Durlauf, 2002. "A Multinomial-Choice Model of Neighborhood Effects," American Economic Review, American Economic Association, vol. 92(2), pages 298-303, May.
    28. Philip Oreopoulos, 2008. "Neighbourhood Effects in Canada: A Critique," Canadian Public Policy, University of Toronto Press, vol. 34(2), pages 237-258, June.
    29. Philip Oreopoulos, 2003. "The Long-Run Consequences of Living in a Poor Neighborhood," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(4), pages 1533-1575.
    30. Rachel M. Hayes & Paul Oyer & Scott Schaefer, 2006. "Coworker Complementarity and the Stability of Top-Management Teams," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 22(1), pages 184-212, April.
    31. Jonathan S. Leonard & David I. Levine, 2006. "The Effect of Diversity on Turnover: A Large Case Study," ILR Review, Cornell University, ILR School, vol. 59(4), pages 547-572, July.
    32. Simon Gachter & Ernst Fehr, 2000. "Cooperation and Punishment in Public Goods Experiments," American Economic Review, American Economic Association, vol. 90(4), pages 980-994, September.
    33. Barton H. Hamilton & Jack A. Nickerson & Hideo Owan, 2003. "Team Incentives and Worker Heterogeneity: An Empirical Analysis of the Impact of Teams on Productivity and Participation," Journal of Political Economy, University of Chicago Press, vol. 111(3), pages 465-497, June.
    34. Charles F. Manski, 1993. "Identification of Endogenous Social Effects: The Reflection Problem," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(3), pages 531-542.
    35. David N. Figlio, 2007. "Boys Named Sue: Disruptive Children and Their Peers," Education Finance and Policy, MIT Press, vol. 2(4), pages 376-394, September.
    36. Kandel, Eugene & Lazear, Edward P, 1992. "Peer Pressure and Partnerships," Journal of Political Economy, University of Chicago Press, vol. 100(4), pages 801-817, August.
    37. Jeffery Carpenter & Samuel Bowles & Herbert Gintis, 2006. "Mutual Monitoring in Teams: Theory and Experimental Evidence on the Importance of Reciprocity," Middlebury College Working Paper Series 0608, Middlebury College, Department of Economics.
    38. Bruce Sacerdote, 2001. "Peer Effects with Random Assignment: Results for Dartmouth Roommates," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 116(2), pages 681-704.
    39. Ichniowski, Casey & Shaw, Kathryn & Prennushi, Giovanna, 1997. "The Effects of Human Resource Management Practices on Productivity: A Study of Steel Finishing Lines," American Economic Review, American Economic Association, vol. 87(3), pages 291-313, June.
    40. Knez, Marc & Simester, Duncan, 2001. "Firm-Wide Incentives and Mutual Monitoring at Continental Airlines," Journal of Labor Economics, University of Chicago Press, vol. 19(4), pages 743-772, October.
    41. Harry J. Paarsch & Bruce S. Shearer, 1999. "The Response of Worker Effort to Piece Rates: Evidence from the British Columbia Tree-Planting Industry," Journal of Human Resources, University of Wisconsin Press, vol. 34(4), pages 643-667.
    42. Cory Koedel & Julian Betts, 2007. "Re-Examining the Role of Teacher Quality In the Educational Production Function," Working Papers 0708, Department of Economics, University of Missouri.
    43. Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
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    Keywords

    Spillovers;

    JEL classification:

    • D01 - Microeconomics - - General - - - Microeconomic Behavior: Underlying Principles
    • J0 - Labor and Demographic Economics - - General

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