@TechReport{iza:izadps:dp1437,
            	author={Cunha, Flavio and Heckman, James J. and Navarro, Salvador},
            	title={Separating Uncertainty from Heterogeneity in Life Cycle Earnings},
            	year={2004},
	month={Dec},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={1437},
            	url={https://www.iza.org/publications/dp1437},
	abstract={This paper develops and applies a method for decomposing cross section variability of earnings into components that are forecastable at the time students decide to go to college (heterogeneity) and components that are unforecastable. About 60% of variability in returns to schooling is forecastable. This has important implications for using measured variability to price risk and predict college attendance.},
	keywords={counterfactuals;uncertainty;lifecycle earnings;schooling;heterogeneity},
            }