@TechReport{iza:izadps:dp7089,
            	author={Delgado, Michael S. and Henderson, Daniel J. and Parmeter, Christopher F.},
            	title={Does Education Matter for Economic Growth?},
            	year={2012},
	month={Dec},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={7089},
            	url={https://www.iza.org/publications/dp7089},
	abstract={Empirical growth regressions typically include mean years of schooling as a proxy for human capital. However, empirical research often finds that the sign and significance of schooling depends on the sample of observations or the specification of the model. We use a nonparametric local-linear regression estimator and a nonparametric variable relevance test to conduct a rigorous and systematic search for significance of mean years of schooling by examining five of the most comprehensive schooling databases. Contrary to a few recent papers that have identified significant nonlinearities between education and growth, our results suggest that mean years of schooling is not a statistically relevant variable in growth regressions. However, we do find evidence (within a cross-sectional framework), that educational achievement, measured by mean test scores, may provide a more reliable measure of human capital than mean years of schooling.},
	keywords={significance testing;mean years of schooling;human capital;irrelevant variables;nonparametric},
            }