TY  - RPRT
        AU  - Bertoni, Marco
AU  - Brunello, Giorgio
AU  - Rocco, Lorenzo
        TI  - Does Mental Productivity Decline with Age? Evidence from Chess Players
        PY  - 2013/Mar/
        PB  - Institute of Labor Economics (IZA)
        CY  - Bonn
        T2  - IZA Discussion Paper
        IS  - 7311
        UR  - https://www.iza.org/index.php/publications/dp7311
        AB  - We use data on international chess tournaments to study the relationship between age and mental productivity in a brain-intensive profession. We show that less talented players tend to leave the game in the earliest phases of their career. When the effects of age on productivity vary with unobserved ability, commonly used fixed effects estimators applied to raw data do not guarantee consistent estimates of age-productivity profiles. In our data, this method strongly over-estimates the productivity of older players. We apply fixed effects to first-differenced data and show that productivity peaks in the early forties and smoothly declines thereafter. Because of this, players aged 60 are 11 percent less productive than players in their early forties.
        KW  - productivity
KW  - mental ability
KW  - aging
        ER  -