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Dale W. Jorgenson, Barbara M. Fraumeni, Investment in Education and U.S. Economic Growth, The Scandinavian Journal of Economics, Vol. 94, Supplement. Proceedings of a Symposium on Productivity Concepts and Measurement Problems: Welfare, Quality and Productivity in the Service Industries (1992), pp. S51-S70
Jorgenson et al. (Wed,) studied this question.
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