Sources of Productivity Growth in the American Coal Industry 1972-95
Published Date
Copyright 2001
ISBN 9780226360621
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Copy CitationDenny Ellerman, Thomas Stoker, and Ernst R. Berndt, New Developments in Productivity Analysis (University of Chicago Press, 2001), chap. 9, https://www.nber.org/books-and-chapters/new-developments-productivity-analysis/sources-productivity-growth-american-coal-industry-1972-95.