1. 1 See, for example, Michael Brill, Corey Holman, Chris Morris, Ronjoy Raichoudhary, and Noah Yosif, "Understanding the labor productivity and compensation gap," Beyond the Numbers, vol. 6, no. 6, June 2017, https://www.bls.gov/opub/btn/volume-6/pdf/understanding-the-labor-productivity-and-compensation-gap.pdf
2. and Susan Fleck, John Glaser, and Shawn Sprague, "The compensation-productivity gap: a visual essay," Monthly Labor Review, January 2011, https://www.bls.gov/opub/mlr/2011/01/art3full.pdf.
3. 2 "Measuring productivity: measurement of aggregate and industry-level productivity growth" (Paris: Organisation for Economic Co-operation and Development, 2001), p. 11, https://www.oecd.org/sdd/productivity-stats/2352458.pdf.
4. 3 Robert M. Solow, "Technical change and the aggregate production function," The Review of Economics and Statistics, vol. 39, no. 3, August 1957, pp. 312-320. Solow's growth model assumes Hicks-neutral technical change and constant returns to scale.
5. 4 For further discussion, see William Gullickson, "Measurement of productivity growth in U.S. manufacturing," Monthly Labor Review, July 1995, p. 14, https://www.bls.gov/opub/mlr/1995/07/art2full.pdf.