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Selection and the age – productivity profile. Evidence from chess players

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  • Bertoni, Marco
  • Brunello, Giorgio
  • Rocco, Lorenzo

Abstract

We use data on professional chess tournaments to study how endogenous selection affects the relationship between age and mental productivity in a brain-intensive profession. We show that less talented players are more likely to drop out, and that the age-productivity gradient is heterogeneous by ability, making fixed effects estimators inconsistent. Since we do not observe the players who dropped out of chess before the beginning of our sampling period, we cannot exploit the standard Heckman sample selection correction procedure. Therefore, we correct for selection by using an imputation method that repopulates the sample by applying to older cohorts the self-selection patterns observed in younger cohorts. We estimate the age-productivity profile on the repopulated sample using median regressions, and find that median productivity increases by close to 5 percent from initial age (15) to peak age (21.6), and declines substantially after the peak. At age 50, it is about 10 percent lower than at age 15. We compare profiles in the unadjusted and in the repopulated sample and show that failure to adequately address endogenous selection in the former leads to substantially over-estimating productivity at any age relative to initial age.

Suggested Citation

  • Bertoni, Marco & Brunello, Giorgio & Rocco, Lorenzo, 2015. "Selection and the age – productivity profile. Evidence from chess players," Journal of Economic Behavior & Organization, Elsevier, vol. 110(C), pages 45-58.
  • Handle: RePEc:eee:jeborg:v:110:y:2015:i:c:p:45-58
    DOI: 10.1016/j.jebo.2014.11.011
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    References listed on IDEAS

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    Cited by:

    1. Bertoni, Marco & Brunello, Giorgio, 2017. "Does Delayed Retirement Affect Youth Employment? Evidence from Italian Local Labour Markets," IZA Discussion Papers 10733, Institute for the Study of Labor (IZA).

    More about this item

    Keywords

    Sample selection; Attrition; Ageing; Productivity; Cognitive abilities;

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • J14 - Labor and Demographic Economics - - Demographic Economics - - - Economics of the Elderly; Economics of the Handicapped; Non-Labor Market Discrimination
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity

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